PEM Fuel Cell Bipolar Plate Patent Landscape 2026
The PEM fuel cell bipolar plate field is concentrated in China, with Sunrise Power holding the top position and Chinese institutions accounting for the majority of ranked filers; the field has reached a maturity stage, with annual filings plateauing near their 2022 peak rather than continuing to climb. Adjacent branches—particularly surface coating and additive manufacturing—remain sparsely covered relative to the dominant fuel-cell core, signalling selective entry opportunities for technically differentiated applicants.
A China-dominated field with a clear leader and a fragmented mid-tier
Sunrise Power Co Ltd leads the ranked applicant pool with 21 patent families, followed by Hydrogenics Corp at 13 and University of Science & Technology Beijing and Synergy Inc each at 11. The top five filers collectively hold 19% of the combined output of the hundred largest filers, indicating moderate concentration at the very top but a long, fragmented tail of single-digit filers.
Beyond the top two, the ranking flattens quickly: seven applicants share 8–11 patent families each, and the remainder sit at six or fewer. This tier structure suggests no single challenger has yet built a portfolio large enough to rival the leader across multiple technical routes.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Sunrise Power Co Ltd | 21 | |
| 2 | Hydrogenics Corp | 13 | |
| 3 | UNIV OF SCI & TECH BEIJING | 11 | |
| 4 | Synergy Inc | 11 | |
| 5 | Dalian Institute of Chemical Physics, Chinese Academy of Sciences | 10 | |
| 6 | Wuhan University of Technology | 9 | |
| 7 | Zhejiang University of Technology | 8 | |
| 8 | Dalian Maritime University | 8 | |
| 9 | Shanghai Electric Group Corp | 6 | |
| 10 | Wuhan Polytechnic University | 6 |
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 11 | Wuxi Weifu High-Tech Co Ltd | 6 | |
| 12 | Shanghai Jiao Tong University | 6 | |
| 13 | HUAZHONG UNIV OF SCI & TECH | 6 | |
| 14 | Shanghai Jichong Hydrogen Energy Technology Co Ltd | 6 | |
| 15 | Robert Bosch GmbH | 5 | |
| 16 | Jiangsu Xingyuan Power Co Ltd | 5 | |
| 17 | South China University of Technology | 5 | |
| 18 | Shanghai University of Electric Power | 5 | |
| 19 | Chongqing Guocheng Hydrogen Energy Technology Co Ltd | 5 | |
| 20 | Shanghai Hydrogen Propulsion Technology Co Ltd | 4 |
Sunrise Power’s lead, combined with the strong presence of Chinese universities and state-affiliated research institutes in the top twenty, points to an ecosystem where government-linked R&D investment is a primary driver of output volume. Commercial players such as Robert Bosch and Mercedes-Benz Group appear in the ranking but with notably smaller portfolios.
Filings from 2024 onward are subject to publication lag and should be treated as provisional undercounts; the apparent softening in 2024–2026 data does not necessarily reflect a real-world decline. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Annual volume peaked in 2022; technology mix is overwhelmingly H01M with sparse adjacent branches
Two structural features define this field: a filing curve that rose steadily from 2017 to a 2022 peak and has since plateaued, and a technology composition dominated by the H01M fuel-cell class with a small cluster of coating and manufacturing sub-classes at the periphery.
Annual filing trend
Filings grew from 20 in 2017 to a peak of 55 in 2022, then eased to the low-to-mid thirties in 2023–2024. The 2025 and 2026 figures are materially undercounted due to publication lag and should not be read as a continuing decline; the multi-year window still shows positive growth.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H01M (batteries, cells and fuel cells) is the overwhelmingly dominant class. Coating and surface deposition (C23C), additive manufacturing (B33Y), electroplating (C25D), and electrolytic production (C25B) each carry meaningful but small shares, reflecting specialist manufacturing and surface-treatment work at the plate level. All remaining classes appear at very low levels.
↗ 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.
PEM fuel cell stack
A fuel cell includes a cathode flow field plate, an anode flow field plate, and a membrane electrode assembly (MEA) sandwiched between the cathode and anode flow field plate. The cathode flow field plate has a flat side and an opposed channel side that the MEA is sandwiched between the anode flow field plate and the flat side of the cathode flow field… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | PEM fuel cell with structured plates | 86 |
| 2 | 一种质子交换膜燃料电池金属双极板 | 45 |
| 3 | 一种质子交换膜燃料电池双极板 | 35 |
| 4 | 一种树状结构流场的质子交换膜燃料电池双极板 | 34 |
| 5 | 一种质子交换膜燃料电池用双极板 | 32 |
| 6 | 一种质子交换膜燃料电池柔性石墨复合双极板的制备方法 | 31 |
| 7 | 一种带有气体流场的质子交换膜燃料电池双极板 | 30 |
| 8 | 一种导电聚合物-石墨烯复合双极板的制备方法 | 28 |
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.
What the competitive structure means for R&D investment decisions
Four structural lenses—maturity stage, applicant concentration, collaboration patterns, and geographic reach—together frame where the highest and lowest-risk entry points lie for new or existing participants.
Field at plateau: incremental innovation dominates
The lifecycle assessment places the field at a Maturity stage, with annual filings having plateaued near their 2022 peak. This implies that the core bipolar-plate design space is well-covered and that truly novel claims are harder to establish. R&D investment is most defensible in differentiated sub-areas—surface treatment, novel materials, or manufacturing process—rather than in replicating established flow-field geometries.
Maturity stageModerate top-tier concentration, fragmented mid-tier
The top five filers account for 19% of the hundred largest filers’ combined output, with Sunrise Power holding 21 patent families—roughly 60% more than second-ranked Hydrogenics Corp. The mid-tier is highly fragmented, with many universities and start-ups holding fewer than ten families each. For a new entrant, the mid-tier fragmentation means that a focused portfolio of even six to ten well-positioned families could secure a competitive ranking position.
Moderate concentrationNo formal co-filing partnerships detected in this corpus
Evidence on co-applicant relationships is pending for this dataset; no collaboration signals were returned. The high proportion of university filers in the top twenty does suggest that industry-academia transfer activity is occurring, but it is not captured as joint filings in the evidence available. Monitoring licensing and assignment activity alongside filing data would give a more complete picture.
Evidence pendingChina-centric filing; limited international prosecution
China accounts for the largest share of patent records, with the United States a distant second, followed by India and South Korea at similar levels. Germany and EPO/PCT filings are small in number. This pattern suggests most applicants are not pursuing broad international protection, which may create freedom-to-operate in Western markets for innovators willing to file there.
China-led, limited globalGo beyond the landscape: Eureka’s TRIZ Solution agent breaks down an R&D problem and returns patented concept solutions, each with a technical approach and cited patent & literature evidence.
Co-filing pairs, ranked by the number of jointly-filed patent families.
Sunrise Power leads on volume; Synergy Inc is the distinctive additive-manufacturing specialist
The top two players differ sharply in technical emphasis: the leader concentrates on fuel-cell system-level claims, while the primary challenger has built an unusual position centred on 3D-printing processes for bipolar plates.
Sunrise Power Co Ltd
Sunrise Power holds 21 patent families, the largest portfolio in the ranked field. Its technology focus is concentrated in H01M 8 (fuel-cell assemblies) and H01M 4 (electrodes), indicating a broad coverage of bipolar-plate integration within the full cell stack rather than a narrow materials or manufacturing sub-specialty. Momentum data for the affiliated entity Jiangsu Sunrise Power classifies it as a new entrant in recent periods, suggesting the group continues to expand its filing scope.
21 patent familiesSynergy Inc
Synergy Inc holds 11 patent families and is the only top-tier applicant with a primary technical focus in B33Y 80 (additive manufacturing / 3D printing), matched equally by H01M 8 coverage. This dual emphasis is distinctive in a field where manufacturing-process claims are sparse. Momentum data classifies Synergy as a new entrant, indicating its portfolio has been built recently from a small prior base—a factor that warrants monitoring for continuation filings.
11 patent families| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Xingyuan Power Co Ltd | 1 | ▲ new entrant |
| Dalian Institute of Chemical Physics, Chinese Academy of Sciences | 1 | ▲ new entrant |
| University of Science & Technology Beijing | 2 | ▲ new entrant |
| Synergy Inc | 11 | ▲ new entrant |
| Wuhan University of Technology | 2 | ▲ new entrant |
| Dalian Maritime University | 1 | ▲ new entrant |
| Shanghai Jiao Tong University | 2 | ▲ new entrant |
Coating, electroplating, and additive manufacturing are under-served relative to the core
Several IPC branches adjacent to the dominant H01M core carry low patent-record counts and low shares of the overall corpus, making them structurally sparse; two of these combine technical plausibility with a realistic entry path.
C23C · Coating & surface deposition
Surface coating is the largest adjacent branch but still sparse relative to the H01M core. Protective and conductive coatings on metallic bipolar plates are a well-recognised technical challenge—corrosion and contact resistance are key durability bottlenecks—yet the coating-specific patent count remains low. An applicant with a novel physical vapour deposition or chemical vapour deposition process could establish a defensible position here without directly competing with established H01M holders.
Search this in Eureka →B33Y · Additive manufacturing (3D printing)
Only 12 patent records are assigned to the additive manufacturing branch, giving it a 2% share of the corpus. Synergy Inc is the principal occupant of this space, meaning it is sparsely populated but not entirely vacant. Additive manufacturing of bipolar plates is technically credible for producing complex flow-field geometries that are difficult to stamp or machine, and the entry path involves novel material-process combinations rather than foundational cell-design claims already held by large portfolios.
Search this in Eureka →How leaders differ by technology route
Route coverage across the main technology branches in the current evidence set.
| Player | H01M 8 · Batteries, cells & fuel cells | H01M 4 · Batteries, cells & fuel cells | C23C 14 · Coating & surface deposition | B33Y 80 · Additive manufacturing (3D printing) | C25B 9 · Electrolytic production of compounds |
|---|---|---|---|---|---|
| Xingyuan Power Co Ltd | Strong · 21 | Strong · 17 | Absent | Absent | Absent |
| Synergy Inc | Strong · 11 | Absent | Absent | Strong · 11 | Absent |
| Hydrogenics Corp | Strong · 13 | Absent | Absent | Absent | Moderate · 3 |
| Dalian Institute of Chemical Physics, Chinese Academy of Sciences | Strong · 12 | Moderate · 3 | Absent | Absent | Absent |
| University of Science & Technology Beijing | Strong · 11 | Moderate · 3 | Absent | Absent | Absent |
| Zhejiang University of Technology | Strong · 8 | Moderate · 4 | Moderate · 2 | Absent | Absent |
| Wuhan University of Technology | Strong · 9 | Moderate · 3 | Absent | Absent | Absent |
Frequently asked questions
The corpus covers 321 patent families in scope. The applicant ranking tracks the hundred largest filers, and jurisdiction and IPC counts are at the patent-record level, which can reflect multiple registrations per family.
Sunrise Power Co Ltd holds the top position with 21 patent families, followed by Hydrogenics Corp with 13. Both Synergy Inc and University of Science & Technology Beijing hold 11 patent families each, placing them jointly third.
The field is at a Maturity stage. Annual filings peaked at 55 in 2022 and have since plateaued in the low-to-mid thirties. The multi-year window still shows positive growth of 5% relative to the prior period. Data from 2024 onward is subject to publication lag and should not be read as a definitive decline.
China is the dominant filing jurisdiction, with the United States a distant second. India and South Korea each hold moderate positions. EPO and PCT (WIPO) filings are small, indicating limited multi-jurisdictional prosecution by most applicants.
Coating and surface deposition (C23C), additive manufacturing (B33Y), and electroplating (C25D) are the largest adjacent branches that remain sparse relative to the H01M fuel-cell core. Each addresses a recognised engineering challenge—corrosion resistance, complex geometry fabrication, and contact-resistance reduction—making them technically credible entry points.
No formal co-applicant relationships were detected in the current evidence set. The strong presence of Chinese universities and research institutes in the top twenty suggests active technology transfer, but joint-filing data is not available in this corpus to confirm specific partnerships.
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