Pseudocapacitor Cell Design Patent Snapshot 2026
The indexed corpus for pseudocapacitor cell design is extremely small, with only two applicants identified and a single jurisdiction on record, indicating the topic is either narrowly defined or at a very early stage of formal IP activity. The field sits at the intersection of capacitor and electrochemical cell technology, represented by IPC classes H01G and H01M, and presents significant room for foundational patent filings.
A two-applicant field with full concentration in the top tier
The current corpus is led jointly by Nanotech Energy Inc and the Regents of the University of California, each holding one patent record — together accounting for the entirety of the top-ranked filers in this topic.
Concentration is absolute: the top five filers’ share of the ranked applicants visible in this query stands at 100%, reflecting a corpus so nascent that no competitive tier structure has yet emerged.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | Nanotech Energy Inc | 1 | |
| 2 | Regents of the University of California | 1 |
The co-presence of an industry player (Nanotech Energy Inc) and a university assignee (University of California) at equal standing suggests the technology remains in an early, research-driven phase where academic and commercial IP overlap directly.
The most recent filing years should be treated with caution given standard patent publication lag; apparent inactivity after 2018 may not reflect the true current state of filings. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
A single filing event and a two-branch technology footprint
The annual filing trend and IPC composition together characterize pseudocapacitor cell design as a topic with minimal indexed activity to date. Both charts reflect a corpus of one, which should be read as a baseline rather than a settled pattern.
Annual filing trend
A single filing is recorded in 2018, with no indexed activity in surrounding years. Given standard publication lag of 18–24 months, any filings from 2024 onward would not yet be fully visible; the trend should not be read as indicating the field is dormant.
↗ Hover for values · click a bar to ask EurekaTechnology composition
The sole indexed record spans two IPC branches — H01G (Capacitors) and H01M (Batteries, cells and fuel cells) — confirming the hybrid electrochemical nature of pseudocapacitor cell design and signaling that both capacitor and battery IP frameworks are relevant entry points.
↗ Hover for values · click a bar to ask EurekaHighly cited patent families surfaced by the query
Citation-heavy patent families returned by the query. Use this section as citation context, not as a curated list of the most topic-specific patents.
Devices and methods for high voltage and solar app…
An electrochemical system (801), comprising a planar array of interconnected electrochemical cells comprising three or more first electrodes, each first electrode comprising three or more first microelectrodes; and three or more second electrodes, each second electrode comprising three or more second microelectrodes, wherein each first microelectrode is… (excerpt from the patent abstract)
Open this patent in Eureka →Ranked by total forward citations. Citation counts favour older and broadly cited patent families, and broad or adjacent patents may appear when they match the search scope. Treat this section as citation context, not as a curated list of the most topic-specific patents. Some patent titles may be shown in their original, non-English language where an accurate translation could not be guaranteed.
Assignee snapshot from the current evidence set
The applicants below are visible in this query result. Because the evidence set is relatively small, read this section as a directional snapshot rather than a full competitive ranking.
Nanotech Energy Inc
Nanotech Energy Inc holds one patent record in the indexed corpus, placing it at the top of the ranking alongside the University of California. As a commercial entity focused on advanced energy storage materials, its presence signals early-stage proprietary IP development in pseudocapacitor cell architecture. No momentum data is available to characterize trajectory.
patent records: 1Regents of the University of California
The Regents of the University of California hold one patent record in this topic, with technology emphasis spanning both H01G 11 (Capacitors) and H01M 12 (Batteries, cells and fuel cells), reflecting the interdisciplinary nature of pseudocapacitor research. University-origin IP in this space may be available for licensing, making it a potential partnership or acquisition target for commercial players.
patent records: 1Frequently asked questions
The current indexed corpus contains one patent family in scope. This reflects a very narrow topic definition or early-stage IP activity, and teams should validate scope by searching adjacent IPC classes such as H01G 11 and H01M 12.
Nanotech Energy Inc and the Regents of the University of California are the two applicants identified in the indexed corpus, each holding one patent record. No other applicants are ranked at this time.
India is the only jurisdiction represented in the indexed corpus, with one patent record on file. Coverage in other major offices — including the US, Europe, China, and Japan — is not confirmed by the current evidence and should be investigated independently.
The indexed record spans two IPC classes: H01G (Capacitors) and H01M (Batteries, cells and fuel cells). Both are relevant entry points for claim drafting in pseudocapacitor cell design, reflecting the hybrid electrochemical nature of the technology.
The lifecycle stage cannot be determined from the current evidence. A single filing recorded in 2018 is insufficient to establish a trend. Publication lag of 18–24 months means recent filings may not yet be visible, so apparent inactivity in recent years should not be interpreted as a decline.
No co-applicant filings are recorded in the current indexed corpus. The simultaneous presence of Nanotech Energy Inc and the University of California in the ranking may suggest a prior or informal relationship, but no joint records are confirmed in the evidence.
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Disclaimer. This page is generated from PatSnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.
Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. PatSnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.