Quantum Computing and Patents: The Next Wave of IP Innovation
Quantum patent filings growing at 49% annually. What patent attorneys need to know about quantum IP, patentability, and strategy.
Quantum Computing and Patents: Why the Next IP Revolution Has Already Started
While the patent industry is deep in conversation about AI, a second technological shift is unfolding that will have equally profound implications for intellectual property: quantum computing. The numbers are unambiguous - patent filings in quantum technology are growing at an annual rate of 49%, more than quadrupling between 2020 and 2025.
For patent attorneys, quantum computing is not just another technology field that clients will want advice on. It raises fundamental patentability questions, demands new claiming strategies, and will eventually transform patent practice itself.
The Quantum Patent Landscape: Who Leads and Where
IBM dominates the global landscape with 191 granted quantum patents, followed by Google with 168 patents. Behind them, D-Wave holds 87 patents, Microsoft 76, and a growing cohort of Chinese players - Baidu, Alibaba, and the Chinese Academy of Sciences collectively hold over 200 patents.
Filings cluster around four core areas:
Quantum algorithms and software: optimization methods, quantum machine learning, error correction algorithms. This area is growing fastest and raises the most complex patentability challenges.
Quantum cryptography: post-quantum cryptographic methods, quantum key distribution (QKD), quantum-safe communication protocols. An area with immediate commercial relevance as the migration to quantum-safe standards accelerates.
Quantum-as-a-Service (QaaS): cloud-based access to quantum computers, hybrid architectures, orchestration platforms. IBM Quantum Network and Amazon Braket are driving this development.
Quantum hardware: superconducting qubits, trapped ions, photonic quantum computers, cooling technology. The most traditional patent domain, where patentability is clearest and claim drafting follows more conventional patterns.
Patentability Challenges for Quantum Inventions
The central challenge in quantum patents lies at the boundary between patentable technical inventions and non-patentable mathematical methods or computer programs as such.
At the EPO, quantum algorithms - like all algorithms - are in principle considered mathematical methods excluded from patent protection under Article 52(2) EPC. They become patentable only when they achieve a technical effect beyond the normal execution of the algorithm. For quantum algorithms, this technical effect may lie in controlling physical qubits, optimizing an industrial process, or implementing a cryptographic security method.
The EPO's examination practice for quantum patents is still developing. The Guidelines for Examination, last updated in November 2025, include for the first time a dedicated section on quantum computing inventions (Part G-VII, 5.4.3). It clarifies that simulating a quantum system on a classical computer is generally not patentable, while controlling a physical quantum computer to solve a technical problem can be patent-eligible.
In the US, the Alice/Mayo framework presents a comparable challenge: abstract ideas are not patentable, even when implemented on a quantum computer. Claims must meet a "significantly more" standard that goes beyond mere implementation on quantum hardware. The Federal Circuit's 2025 decision in QuantumPath v. IonQ provided some guidance, holding that claims directed to a specific method of error correction in a trapped-ion quantum processor were patent-eligible because they addressed a concrete technical problem in the physical system.
Strategic Claim Drafting for Quantum Patents
Claiming strategy for quantum patents requires a combination of technical precision and strategic breadth.
For quantum algorithms, a two-tier approach has proven effective: an independent claim formulating the algorithm in the context of a concrete technical application - such as "a method for optimizing a logistics network using a quantum optimization algorithm executed on a quantum computer" - supplemented by dependent claims specifying the algorithmic details including gate sequences, qubit topology, and measurement protocols.
For quantum hardware inventions, claim drafting is more conventional, but the challenge lies in distinguishing from the extensive prior art. The description must be detailed enough to demonstrate enablement without disclosing excessive know-how. Depositing samples or detailed specifications with a trusted repository can be a useful strategy for hardware inventions.
Particularly demanding are hybrid quantum-classical systems, where part of the processing occurs on a quantum computer and part on classical hardware. The claim structure must cover both layers and precisely define the interface between them - specifying what data crosses the quantum-classical boundary and in what form.
How Quantum Computing Will Transform Patent Practice Itself
Beyond the question of how to patent quantum inventions, quantum computing will eventually reshape the tools of patent practice.
Quantum computers excel at optimization problems - and patent search is fundamentally an optimization problem: finding the most relevant documents from a database of over 150 million patent publications. Quantum-based search algorithms could accelerate semantic patent search by orders of magnitude, enabling exhaustive rather than heuristic prior art analysis.
Quantum machine learning could improve the predictive quality of patent valuation models - for example, in estimating grant probability, identifying relevant patent families, or detecting infringement patterns across complex technology domains.
However, these applications remain forward-looking. Current quantum computers are in the NISQ era (Noisy Intermediate-Scale Quantum), which is not yet performant enough for most practical patent applications. The timeline for practice-relevant quantum applications in patent search is five to ten years. But the patent landscape being built now will determine who controls these applications when they arrive.
What Patent Attorneys Should Know About Quantum IP Now
Even though the practical quantum revolution is still years away, patent attorneys should be positioning themselves today.
First, build a foundational understanding of the technology. You do not need to be a physicist to handle quantum patents, but you must understand what a qubit is, how quantum entanglement works, and where the boundary between classical and quantum computation lies. Resources like IBM Quantum Learning and Google's Quantum AI blog offer accessible starting points.
Second, track examination practice. The EPO, USPTO, and CNIPA are actively developing their examination guidelines for quantum patents. Knowing the current positions enables robust claim drafting from the outset.
Third, analyze the IP strategies of the major players. IBM's, Google's, and Microsoft's patent portfolios reveal which quantum areas are considered strategically important and where white space exists for new applicants. Mapping these portfolios provides a competitive intelligence baseline for advising clients.
Fourth, advise clients proactively. Companies investing in quantum technology frequently underestimate their patenting opportunities. An early IP strategy can be decisive for building valuable protection positions in a rapidly growing field - particularly since quantum patent prosecution timelines of three to five years mean that filings made today will mature as commercial quantum applications reach the market.
Conclusion
Quantum computing is the next major frontier in intellectual property. With 49% annual growth in patent filings, billions in investment from technology giants, and increasing commercial maturity, the time for patent attorneys to engage with quantum IP is not tomorrow - it is now.
The firms that position early will win the clients who need to build and protect quantum IP in the coming years. Those that wait will be catching up in an increasingly crowded field.