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IBM was granted 191 quantum technology patents in 2024 alone, more than any other company worldwide, according to McKinsey’s Quantum Technology Monitor 2025. Google followed with 168. Portfolio counts show the same gap: PatSnap’s July 2026 patent landscape credits IBM with 3,073 quantum computing patent families, about 1.5 times Google’s 2,003. This dramatic concentration of intellectual property reveals a stark reality about quantum computing's future: while thousands of organizations are racing to build quantum computers, only two companies are positioning themselves to control the foundational technologies that everyone else will need to license.
In the rapidly evolving field of quantum computing, patents serve as vital tools that provide companies with exclusive rights, ensuring they maintain a competitive edge. These patents are critical for protecting intellectual property in quantum technologies, attracting investors, and creating potential revenue sources through cross-licensing opportunities. According torecent industry analysis, companies with strong quantum IP portfolios have been significantly more successful in raising funding, as investors view patents as creating defensible market positions.
The claims section of a quantum computing patent defines the legal boundaries of the invention, specifying exactly what aspects are protected and distinguishing the invention from prior art. Claims outline the methods, apparatus, or systems covered by the patent, and are central to understanding the enforceable rights granted. Given the complexity of quantum physics concepts, well-crafted claims are essential to capture novel technical contributions without overstepping patentable subject matter limits.
For SaaS founders and tech startups exploring quantum computing applications, conducting thoroughpatent searches and freedom-to-operate analyses before developing new technologies is crucial. This helps avoid potential infringements and identify gaps for innovative solutions. A comprehensive quantum patent strategy aligned with long-term goals – much like the strategies outlined in ourAI Patent Mastery guide – is essential for securing a strong position in the quantum landscape.
The strategic value extends beyond protection. Major corporations from banking to aerospace are collaborating with quantum startups and filing joint patents to hedge against future disruptions. JPMorgan, Wells Fargo, and Bank of America have all secured quantum patents despite not building quantum hardware themselves – a clear signal that patents in this space represent strategic positioning for the quantum era.
The landscape of quantum computing patents is experiencing explosive growth. According to MIT's Quantum Index Report 2025, global quantum technology patent filings increased fivefold from 2014 to 2024. Over 5,000 quantum-related patents were filed in 2023 alone, and McKinsey's Quantum Technology Monitor 2025 finds that patents granted globally rose a further 13% in 2024. Applicants are also moving from single patent applications toward quantum computing patent families that cover one invention in several jurisdictions.
The geographic distribution tells a compelling story. China held approximately 60% of all quantum technology patents as of 2024, followed by the United States and Japan, according to MIT’s 2025 report. MIT’s Quantum Index Report 2026 shows the gap still widening: China’s filings climbed from 1,013 in 2014 to 9,790 in 2025, while U.S. filings nearly quadrupled to 2,423, leaving China with roughly four times the annual U.S. total. This dominance is backed by massive government investment, including more than $15 billion China has allocated for quantum technologies. The Quantum Insider notes that much of that figure went to public labs, a national quantum communication backbone, and satellite programs rather than private start-ups.
According to MIT’s 2026 report, corporations hold about 53.5% of quantum computing patent families and universities hold 36.1%, together nearly 90%. Individual inventors, government laboratories, nonprofits and hospitals hold the remainder. Breakthroughs are emerging from both academic research and corporate R&D labs, and the balance is shifting: universities out-filed corporations in both 2024 and 2025, while corporate filings fell from a 2021 peak of 2,559 to 1,304 in 2025.
Since 2019, the average annual growth rate of issued quantum computing patents has been approximately 40 to 50%. The Quantum Economic Development Consortium (QED-C) puts the figure at 49% from 2019 to 2023, and separate analyses report a 61% jump from 2022 to 2023 alone. Quantum communication patents grew about 33% a year over the same period, and error correction remains one of the busiest filing areas. U.S. filings spread across four main hardware modalities, superconducting, trapped ion, photonic, and annealing.
Money is following the filings. McKinsey reports that start-up investment reached nearly $2.0 billion in 2024, a 50% increase over $1.3 billion in 2023. Then funding exploded. McKinsey's quantum investment surge data shows start-up investment reaching about $12.6 billion in 2025, roughly 6.3 times the 2024 total, and the firm's 2026 Quantum Technology Monitor reports that more than 90% of it went to quantum computing companies. Public money moved too. Government announcements topped $10 billion by early 2025, led by Japan's $7.4 billion program and Spain's €900 million initiative. McKinsey projects the total quantum market will reach about $97 billion by 2035.
Yes, but not as pure math. An algorithm per se is an abstract mathematical method, and it is not patentable in either the U.S. or Europe. Quantum algorithms earn patent protection when they are tied to a specific technical implementation that produces a tangible technical effect. Examples include improving how a quantum computer functions or producing more efficient drug discovery simulations.
At the USPTO, these patent applications usually face three types of rejection:
The PTAB’s February 2025 decision in Ex parte Cao shows what works. The applicant's specification included concrete examples that supported its broader genus claims. The claims were also framed as a technical improvement with a practical application, and that combination got them past §101.
Patent examiners are increasingly sophisticated in evaluating these claims. When you draft, state the technical problem, the advantage over classical approaches, the concrete implementation, and the measurable improvement. Put several worked examples in the specification so your broad claims have support. The USPTO's December 2025 guidance adds that the claim itself must recite the components or steps responsible for the improvement. For claims that cleared these hurdles in classical computing, see our software patent examples. If part of your method is better kept secret, our guide to protecting your proprietary algorithm compares patents with trade secret protection. Our SaaS Patent Guide 2.0 covers core software patent principles, such as identifying patentable features and preparing and expediting applications, that can inform how quantum software developers approach protection.
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IBM holds the largest quantum patent portfolio in the world, and no rival is close. PatSnap’s July 2026 patent landscape puts the top companies patenting quantum computing in this order:
Treat these rankings as directional. Other 2026 analyses that also draw on PatSnap data report higher totals for the same companies. Some trackers count granted patents. Others count pending patent applications or quantum computing patent families, where one invention filed in several countries counts once. The patent office you look at also matters. The European Patent Office names Fujitsu as the leading applicant among 2025 European quantum computing filings, ahead of Alphabet, Microsoft and IBM.
Specialists are closing the gap in narrower niches. IonQ passed 1,000 total quantum IP assets in August 2025 and now reports more than 1,200 patents granted and pending worldwide. Nearly 400 of its assets cover quantum networking after it acquired Qubitekk and a controlling stake in ID Quantique.
For your startup, the takeaway is practical. Your quantum technology probably sits near intellectual property owned by one of these portfolios. Search the cooperative patent classification system under G06N 10 and its subgroups before you file. That search shows you where the big players have already claimed ground and where open space remains. A structured patent landscape analysis turns those results into filing decisions, and if your team leans on automated tools, review what to check in AI agents for patent work before trusting their output.
IBM's portfolio of more than 3,000 quantum computing patent families worldwide showcases both quantity and quality. These patents cover critical areas including:
IBM's patent strategy emphasizes foundational technologies. By securing IP on error correction methods – including implementations of the surface code adapted for superconducting qubits – IBM is protecting what many consider the key to practical quantum computers. IBM researchers have demonstrated extending qubit coherence through clever encoding, with these methods protected by patents.
The company pairs that patent position with open collaboration. It open-sourced its Qiskit software and runs the IBM Quantum Network with companies and universities, while keeping patent protection over its core hardware. This balanced approach fosters innovation while maintaining competitive advantages in core technologies. In November 2025, IBM unveiled its 120-qubit Nighthawk processor and the experimental Loon processor, and its roadmap targets a large-scale, fault-tolerant system called Starling by 2029.
Google's quantum patents revolve heavily around superconducting processor designs and techniques to improve qubit fidelity. The company's 2019 "quantum supremacy" experiment with its 53-qubit Sycamore processor was underpinned by hardware and readout techniques protected via patents.
In December 2024, Google demonstrated a major milestone with its "Willow" quantum chip – showing that adding qubits and applying error correction reduced the error rate exponentially. Google has filed patents related to the Willow architecture, error-correcting code implementations, and feedback control systems that stabilize qubits. In October 2025, Google reported that its Quantum Echoes algorithm, run on Willow, achieved the first verifiable quantum advantage on hardware, running 13,000 times faster than the best classical algorithm on a leading supercomputer.
Google's patents include innovations in:
These patents position Google to maintain its edge in pursuing both quantum advantage demonstrations and the path toward fault-tolerant quantum computing.
China's $15 billion government investment in quantum technologies has fueled an aggressive patent push. Chinese organizations now lead in quantum communication patents, with companies like:
China's Jiuzhang photonic quantum computer, reported to be "100 trillion times faster" than classical supercomputers for boson sampling, generated numerous patents covering unique photonic circuits. Chinese researchers were also first to demonstrate satellite-based quantum key distribution through the Micius satellite experiments, with corresponding patents predominantly Chinese-owned.
This aggressive patent strategy positions China to influence global standards, particularly in quantum communication where Chinese entities may control essential protocols for international quantum networks.
Patent offices sort quantum computing patents by technical layer under the Cooperative Patent Classification system. The USPTO's CPC scheme classifies quantum computing under G06N 10, with subgroups for physical qubit architectures (G06N 10/40), quantum algorithms (G06N 10/60), and error correction (G06N 10/70). G06N 10 is not the whole picture, though. One patent landscape study counted 2,879 granted patents in G06N 10 out of roughly 29,701 patents mentioning "quantum" in their title, abstract, or claims, because many inventions land in optics, cryogenics, or communications classes instead. The technology areas below draw the heaviest filing activity.
Patents center on different physical implementations of qubits – the basic unit of quantum information. Each platform faces unique challenges addressed through patented solutions:
Error correction is one of the most crowded corners of the quantum computing patent landscape. About 29% of granted G06N 10 patents (828 of 2,879) fall under the error correction subgroup G06N 10/70, according to the same landscape study. The reason is that every qubit platform needs error correction before it can scale. Proof-of-principle logical qubits have used around 50 physical qubits, and resource estimates for large-scale fault tolerance run to hundreds or even thousands of physical qubits per logical qubit. In one Quantum Insider patent search, IBM (12) and Alphabet (10) led corporate assignees in granted QEC patents, and U.S.-based organizations led Chinese organizations 87 to 69. Claims cluster around surface codes, fault-tolerant logical operations, and hardware-software co-design. Many of these are searchable under cooperative patent classification system code G06N 10/70. The USPTO notes that this group is still incomplete pending reclassification, so search G06N 10/00 alongside it for full coverage.
Quantum key distribution (QKD) patents are proliferating as organizations prepare for the post-quantum era.Chinese organizations dominate patent applications in quantum cryptography, reflecting national priority on secure communications. Key patents cover:
IonQ's portfolio of nearly 400 quantum networking patents shows how seriously companies treat this layer of quantum technology. Patent applications here cluster around four areas:
Traditional networking companies are seeking patent protection as well. Cisco has developed the Secure Key Integration Protocol (SKIP), which lets its routers integrate keys from external quantum key distribution (QKD) devices into MACsec encryption. McKinsey projects the quantum communication market could reach $14.9 billion by 2035, and that projection is fueling intense patent activity.
The quantum computing patent landscape shifts depending on which patent office you read. The European Patent Office logged 451 quantum computing applications in 2025, up 37.9%. Counting quantum computing patent families keeps one invention filed in several offices from being counted twice.
The U.S. maintains leadership in high-impact quantum patents, focusing on fundamental breakthroughs. U.S. entities account for 56 of 117 patents issued globally for logical qubits, demonstrating strength in critical error correction technologies. The National Quantum Initiative Act (2018) and subsequent funding programs have injected billions into research, with national labs like NIST, Sandia, and Los Alamos filing patents in quantum communication and sensing.
U.S. companies patent not just hardware but use-case solutions:
Quantum computing filings at the European Patent Office have increased 130% over the last five years, and filing momentum keeps building. According to the European Patent Office, it received 451 quantum computing patent applications in 2025, up 37.9% year over year. Fujitsu led that dataset, with Alphabet, Microsoft and IBM also prominent. Public funding drives much of this quantum technology work. The EU Quantum Flagship commits €1 billion. Germany announced €2 billion and France €1.8 billion. European patents often list multiple assignees from different countries, which reflects inventions developed by consortia.
Japan is the region's strongest challenger to China. Toshiba is especially strong in quantum key distribution (QKD). Fujitsu also leads all applicants in the European Patent Office's 2025 quantum computing data, where Japanese patent applications grew 170.8%. Japan announced a $7.4 billion investment in quantum technology in early 2025. South Korea's SK Telecom holds QKD patents tied to deployed telecom products. Australia's Q-CTRL has patented quantum control software that reduces hardware errors.
Quantum machine learning sits where two hot filing areas meet. Quantum Computing Inc. (QCi) shows the pattern with patents titled "Machine learning mapping for quantum processing units" and "Variational analog quantum oracle learning." Each title points to a specific mechanism, either mapping models onto quantum hardware or a variational learning routine, rather than "AI on a quantum computer" in general. That focus matters. Quantum algorithms for machine learning get no exemption from §101 scrutiny, so patent protection depends on claiming the concrete technical improvement. Generative AI filings are climbing on a similar curve, as WIPO's new data shows, and founders who wait risk the lockout described in our analysis of the most valuable AI patents.
Beyond IonQ's 400-patent portfolio, quantum networking patents are proliferating globally:
Early quantum networks like the EU's EuroQCI and U.S. Quantum Network testbeds are driving practical implementations that generate new patents. Cisco has already built QKD key management into its routers through its Secure Key Integration Protocol (SKIP), signaling traditional networking companies' entry into quantum.
The quantum patent landscape faces several defining trends:
Higher Standards: As prior art accumulates, patent offices face challenges in evaluating novelty. We're likely to see the first high-profile quantum patent disputes as companies contest ownership of critical techniques.
Cross-Licensing Emergence: Like the smartphone industry, leading players may enter cross-licensing agreements to enable freedom to operate. IBM, Google, and others might form patent pools to avoid litigation that could hamper progress.
Geographic Divergence: Different patent offices may grant protection for different innovations based on policy – creating strong regional IP that doesn't translate globally. Companies are intensifying worldwide filing strategies despite costs.
Quality Over Quantity: Early broad patents may face challenges and invalidation, while narrower but stronger patents covering implementable innovations become the real assets.
With the quantum technology sector projected to reach $100 billion within the next decade, patent activity will intensify. Those securing key patents today will hold critical leverage in tomorrow's quantum economy – whether through licensing revenues, strategic partnerships, or acquisition valuations.
Understanding the quantum computing patent landscape is crucial for any tech startup or inventor looking to stake a claim in this transformative technology. As we've seen, the concentration of foundational patents in the hands of IBM, Google, and a few specialized players means that strategic patent positioning is more important than ever.
The bottom line: Weak patents in quantum computing don't just fail to protect your innovation – they actively help competitors by revealing your approach without providing enforceable protection. Strong, well-crafted patents deter competitors and create valuable licensing opportunities. This is where the RLG Guarantee makes the difference – our experienced patent attorneys understand both the technical complexity of quantum computing and the strategic positioning needed to secure meaningful protection.
The quantum revolution is happening now. Every day you delay filing patent protection is a day your competitors gain ground. In the first-to-file system, hesitation doesn't just risk losing priority – it risks losing everything. The companies dominating quantum patents today started filing years ago, and the window for foundational quantum patents is rapidly closing. Without proper IP protection, you risk losing not just revenue and market share, but control over how your quantum innovations get commercialized.
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The quantum computing market is projected to reach $97 billion by 2035. The companies that secure strong patent positions today will be the ones capturing that value tomorrow. With RLG's fixed-fee model and transparent pricing, you can pursue quantum patent protection without the uncertainty of hourly billing. Our track record in tech IP, especially in emerging technologies like AI and quantum computing, ensures your innovations receive the sophisticated protection they deserve.
Yes, but today's machines are noisy early systems, not fault-tolerant ones. D-Wave's Advantage2 technical report documents more than 4,400 annealing qubits, and gate-based systems from IBM, Google, IonQ, and Quantinuum, whose 98-qubit Helios system launched in November 2025, already run real workloads through the cloud. What does not exist yet is large-scale fault tolerance, and researchers in Martiel et al. (2026) draw a clear line between detecting errors and correcting them at scale.
A patent is an exclusionary right. It lets you stop others from making, using, selling, or importing your invention for up to 20 years from your first nonprovisional filing, according to the USPTO. For quantum technology, that patent protection covers specific hardware, error-control methods, and quantum-classical workflows.
Its main medical use is molecular simulation for drug discovery. A Cleveland Clinic, RIKEN, and IBM study simulated complexes of up to 12,635 atoms. IBM's U.S. Patent 11,942,192 claims a hybrid density-functional-theory method, which shows how these medical workflows become patentable inventions.
IBM holds the most, with 3,073 quantum computing patent families in PatSnap’s July 2026 count, followed by Google with 2,003 and Microsoft with 1,002. Rankings shift depending on the patent office and whether you count granted patents, applications, or patent families. In Europe, the European Patent Office lists Fujitsu as the leading 2025 applicant for quantum computing patents.
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