Pseudocapacitor Manufacturing Patent Snapshot 2026
Pseudocapacitor manufacturing is a small, highly concentrated patent space dominated by LG Energy Solution and a handful of specialist firms, with the United States as the primary filing jurisdiction. Activity is sparse and intermittent, signalling an early-stage field where strategic filings by a few players can shift the competitive balance quickly.
LG Energy Solution leads a tightly held, early-stage patent corpus
LG Energy Solution holds the top position among ranked filers, followed by ADA Technologies and Intel, which each hold the same number of patent records. The top five filers account for 59% of the combined total of the ranked applicants visible in this query, confirming a strongly concentrated visible assignee structure for such a nascent topic.
The tier gap between the leader and the rest of the field is modest in absolute terms, yet meaningful given the small corpus size. A single additional filing from any mid-tier entrant could materially reorder the ranking, making this a fluid competitive situation.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | LG Energy Solution Ltd | 5 | |
| 2 | ADA Technologies Inc | 3 | |
| 3 | Intel Corporation | 3 | |
| 4 | Rhodia Operations SAS | 1 | |
| 5 | Purdue Research Foundation | 1 | |
| 6 | Centre National de la Recherche Scientifique (CNRS) | 1 | |
| 7 | University of Nantes | 1 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 8 | Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences | 1 | |
| 9 | RAM MANOJ KUMAR | 1 | |
| 10 | Vellore Institute of Technology | 1 | |
| 11 | Nanotech Energy Inc | 1 | |
| 12 | SR University | 1 | |
| 13 | Regents of the University of California | 1 | |
| 14 | King Fahd University of Petroleum and Minerals | 1 |
LG Energy Solution’s leading position, combined with its exclusive focus on H01G 11 capacitor technology, suggests a deliberate manufacturing-oriented IP strategy rather than broad exploratory filings. Intel’s presence in the ranking indicates that pseudocapacitive approaches are also being pursued in semiconductor and on-chip energy contexts.
Filings from approximately the past 18 to 24 months are subject to publication lag and are likely under-represented; the apparent recent uptick should be interpreted with caution until more applications become public. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
A brief 2018 burst, a long dormancy, and a tentative recent revival
Two charts together describe the temporal pattern and technology mix of the corpus: annual filing volume reveals when and how activity has clustered, while the IPC composition shows which technical branches have attracted the most attention.
Annual filing trend
Filing volume peaked sharply in 2018 before falling to zero for several consecutive years, then showed isolated activity in 2024, 2025, and 2026. The recent figures are subject to publication lag and may grow as applications publish; they should not yet be read as a confirmed recovery trend.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H01G (Capacitors) is visible in the IPC branch mix, reflecting the core device focus of the field. H01M (Batteries, cells and fuel cells) appears as a secondary branch, consistent with hybrid pseudocapacitor-battery architectures. C01B (Non-metallic elements and inorganic compounds) and C30B (Crystal growth) each appear only once, marking them as sparse adjacent branches.
↗ 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.
Pseudocapacitive electrodes and methods of forming
Pesudocapacitive electrodes having improved electrochemical properties for energy storage systems, and methods for their manufacture. The pseudocapacitive electrode may include a porous substrate and a nanoscale structure having an array of nanoneedles or an array of nanopetals located on the substrate. The nanoscale structure includes a bi- or tri-metal… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | High energy density hybrid pseudocapacitors and me… | 23 |
| 2 | Pseudocapacitive electrodes and methods of forming | 20 |
| 3 | 一种三维高导热导电复合材料、其制备方法与应用 | 10 |
| 4 | Method of increasing an energy density and an achi… | 3 |
| 5 | High energy density hybrid pseudocapacitors and me… | 3 |
| 6 | Pseudocapacitive materials for supercapacitor elec… | 2 |
| 7 | Method of increasing an energy density and an achi… | 1 |
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.
LG Energy Solution
LG Energy Solution holds 5 patent records, the largest count in the corpus, all concentrated in H01G 11 (electrochemical capacitors). This single-branch focus indicates a targeted manufacturing IP strategy oriented toward capacitor cell fabrication. Applicant momentum data is not available for this corpus, so trajectory cannot be quantified from evidence.
patent records: 5ADA Technologies
ADA Technologies holds 3 patent records and shows broader technical coverage than the leader, spanning H01G 11, H01G 9, and H01M 12 — indicating an interest in both capacitor and hybrid battery-capacitor architectures. This cross-branch positioning could give ADA Technologies an advantage in hybrid energy-storage manufacturing processes. Applicant momentum data is not available for this corpus.
patent records: 3Frequently asked questions
The corpus in scope contains 14 patent families. This is a small corpus, which means individual filings can have an outsized effect on rankings and trend readings.
LG Energy Solution holds the most patent records among ranked filers, followed by ADA Technologies and Intel, each of which holds the same number of patent records as the other.
The United States is the lead jurisdiction, with 11 patent records. Europe via the EPO and India each follow with 3 records, while China and Taiwan each have 1 record.
H01G (Capacitors) is the visible branch, consistent with the core device focus. H01M (Batteries, cells and fuel cells) appears as a secondary branch, reflecting hybrid architectures, while C01B and C30B each appear only once.
No co-applicant filings are recorded in the current corpus. Several universities and research institutes appear as independent filers, but no industry-academic co-filings have been identified from the available evidence.
The most-cited document in the corpus is titled ‘High energy density hybrid pseudocapacitors and methods’ with 23 citations, followed by ‘Pseudocapacitive electrodes and methods of forming’ with 20 citations. These two documents represent the core foundational references in the field as measured by citation counts within the corpus.
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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.
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