Alkaline Fuel Cell for Telecom Infrastructure Patent Landscape
Alkaline Fuel Cell for Telecom Infrastructure Patent Landscape in 2026
The patent corpus for alkaline fuel cells applied to telecom infrastructure is exceptionally small, with activity concentrated in a single French academic-industrial consortium and no recorded filings since 2019. The field is in decline, leaving the technical space largely open but also signalling limited current commercial momentum.
A French consortium holds virtually the entire space
The landscape is dominated by a tightly linked group led by the Centre National de la Recherche Scientifique (CNRS) and its partners, which account for the top positions in the applicant ranking. Gillette Co and Union Carbide Corporation represent isolated legacy filings.
The top five filers account for 79% of the hundred largest filers’ combined total, reflecting extreme concentration in what is, in absolute terms, a very small corpus. There is no meaningful second tier.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | Centre National de la Recherche Scientifique (CNRS) | 3 | |
| 2 | IRT Antoine de Saint Exupery | 3 | |
| 3 | Institut National Polytechnique de Toulouse | 3 | |
| 4 | The Gillette Company | 1 | |
| 5 | Klein, David N. | 1 | |
| 6 | Gilicinski, Andrew G. | 1 | |
| 7 | Union Carbide Corporation | 1 | |
| 8 | Bourilkov, Jordan T. | 1 |
The consortium’s position implies that any new entrant with even modest filing activity could become a visible participant, but the absence of activity since 2019 also raises questions about whether commercial interest in this specific intersection of alkaline fuel cell technology and telecom infrastructure has faded.
Recent years should be treated with caution due to standard patent publication lag; however, the gap here extends back to 2019, making a lag explanation insufficient on its own. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Activity peaked in 2019 and has not resumed; technology mix is narrow
The filing trend and technology composition together reveal a field that generated a brief pulse of activity around 2019 before going quiet, with IPC coverage skewed heavily toward core fuel cell classes.
Annual filing trend
A single cluster of filings appears in 2019, with one additional record in 2020, and no activity recorded before or since in the observation window. The absence of filings in 2021–2026 is consistent with the decline lifecycle stage; standard publication lag does not account for a gap of this duration.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H01M (batteries, cells and fuel cells) is the dominant IPC class, with secondary coverage under G01R (electric and magnetic measurement) and H02J (power supply and grid systems). The presence of B24B, C09G, C11D, and related materials classes in legacy filings from Union Carbide suggests tangential electrode or membrane preparation work rather than system-level telecom integration.
↗ 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.
Fuel cell hybrid power supply
A hybrid power supply includes a switching type DC/DC boost type converter that receives energy from a fuel cell cell and is arranged to deliver the energy to a rechargeable cell, set to provide a fixed output voltage that is less than the fall charge voltage of the rechargeable cell. The hybrid power supply includes a circuit including a fuel cell current… (excerpt from the patent abstract)
Open this patent in Eureka →| # | Patent | Citations |
|---|---|---|
| 1 | Surface cleaner/polishing composition and its prod… | 8 |
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 structure means for R&D investment decisions
The combination of a near-zero corpus, concentrated ownership, and a decline lifecycle stage presents a specific risk-opportunity profile for engineers evaluating entry.
Field is in decline following a 2019 peak
The lifecycle stage is classified as Decline, with annual filings having eased back from the 2019 peak and no subsequent activity recorded. This may reflect a technology pivot away from alkaline systems toward proton-exchange membrane or other fuel cell chemistries for telecom backup power, or simply limited commercial uptake. New entrants should verify whether the technical rationale for alkaline chemistry in telecom contexts has been superseded.
Lifecycle: DeclineOne consortium controls the core fuel cell filings
CNRS, the Institut National Polytechnique de Toulouse, IRT Antoine de Saint Exupery, and Zodiac Aerotechnics filed as a coordinated group, sharing identical IPC footprints across H01M8 and G01R27. This concentration means that the most technically substantive prior art in this space is held by a French public-private research network, not by a telecom operator or power equipment OEM. Any freedom-to-operate analysis should begin with this cluster.
High concentrationDense co-filing within the French consortium; isolated individual filings elsewhere
The most active co-filing pairs are CNRS with the Institut National Polytechnique de Toulouse, CNRS with Zodiac Aerotechnics, and IRT Antoine de Saint Exupery with all three of those partners — each pair sharing three co-filed records. Gillette Co appears with individual inventors (Klein, Gilicinski, Bourilkov, Rotondo) in a separate, smaller cluster. No telecom infrastructure operators appear as co-applicants, which is a notable gap given the stated application domain.
Consortium-drivenFrance leads filings; WIPO and Japan provide limited international reach
France is the lead office with the highest patent record count, followed by WIPO (PCT) and Japan. The absence of filings at USPTO or EPO (beyond France) limits the geographic enforcement scope of existing patents and may simplify freedom-to-operate in the United States and broader Europe. Organizations developing alkaline fuel cell systems for telecom in North America or Asia face minimal blocking risk from this corpus today.
France-centricGo 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.
| Applicant | Collaborator | Co-filings |
|---|---|---|
| Centre National de la Recherche Scientifique (CNRS) | Institut National Polytechnique de Toulouse | 3 |
| Centre National de la Recherche Scientifique (CNRS) | Zodiac Aerotechnics | 3 |
| Institut National Polytechnique de Toulouse | Zodiac Aerotechnics | 3 |
| IRT Antoine de Saint Exupery | Centre National de la Recherche Scientifique (CNRS) | 3 |
| IRT Antoine de Saint Exupery | Institut National Polytechnique de Toulouse | 3 |
| IRT Antoine de Saint Exupery | Zodiac Aerotechnics | 3 |
| ROTONDO JOHN | The Gillette Company | 1 |
| Klein, David N. | The Gillette Company | 1 |
| Gilicinski, Andrew G. | The Gillette Company | 1 |
| Bourilkov, Jordan T. | The Gillette Company | 1 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
CNRS-led consortium versus isolated legacy filers
Two structurally distinct groups appear in the ranking: a tightly integrated French public-research consortium active around 2019, and a set of older individual or corporate filers with no apparent connection to the telecom application.
Centre National de la Recherche Scientifique (CNRS)
CNRS leads with 3 patent records, co-filed in a consortium that includes the Institut National Polytechnique de Toulouse, IRT Antoine de Saint Exupery, and Zodiac Aerotechnics — each also holding 3 patent records. All four share an identical technology focus on H01M8 (fuel cells), G01R27 (impedance/measurement), and H01M2 (fuel cell components). No momentum data is available for the recent period, consistent with no filings recorded after 2020.
patent records: 3The Gillette Company
Gillette holds 1 patent record, focused on H02J7 (battery charging and power supply systems), alongside individual co-inventors. This filing appears to reflect a legacy portable power or battery management application rather than a dedicated telecom alkaline fuel cell system. No recent momentum is recorded. Union Carbide Corporation similarly holds 1 patent record with a materials-processing focus (B24B, C09G, C01B), likely predating the telecom framing entirely.
patent records: 1Under-served IPC branches adjacent to the dominant fuel cell class
Given the very small corpus, any branch beyond H01M is relatively sparse. Two adjacent areas appear in the evidence with only single-record coverage and may warrant monitoring if commercial interest in alkaline fuel cells for telecom re-emerges.
H02J · Power supply and grid integration
Only one patent record touches H02J7 (power supply and battery charging systems), filed by Gillette Co. For a topic explicitly tied to telecom infrastructure — which requires grid-interface, backup-power management, and DC power systems — the near-absence of H02J coverage is notable. If alkaline fuel cell systems are to be deployed as telecom backup power, power electronics integration and grid-interfacing IP would be a natural adjacent area with currently low filing density. Entry would require linking alkaline fuel cell chemistry to telecom-grade power conditioning, a path that remains technically open based on available evidence.
Search this in Eureka →C01B / C09G · Electrode and membrane materials
Union Carbide’s single record spans B24B (grinding and polishing), C01B (inorganic compounds), C09G (polishing compositions), C11D (cleaning compositions), and C09K (specialty materials) — all pointing to electrode or catalyst surface preparation rather than system-level fuel cell design. This materials-processing branch is represented by only one record and no recent filings. For teams developing next-generation alkaline anion-exchange membrane electrodes, this IPC cluster represents an observation of sparsity; whether it constitutes an opportunity depends on whether the underlying chemistry is differentiated from broader alkaline electrolysis or membrane literature, which would require a broader search beyond this corpus.
Search this in Eureka →How the two applicant groups differ by technology route
Strength of each leader across the main technology routes.
| Player | H01M 8 · Batteries, cells & fuel cells | G01R 27 · Electric & magnetic measurement | H01M 2 · Batteries, cells & fuel cells | B24B 37 · Grinding & polishing | C01B 39 · Non-metallic elements & inorganic compounds |
|---|---|---|---|---|---|
| IRT Antoine de Saint Exupery | Strong · 3 | Strong · 2 | Strong · 2 | Absent | Absent |
| Institut National Polytechnique de Toulouse | Strong · 3 | Strong · 2 | Strong · 2 | Absent | Absent |
| Centre National de la Recherche Scientifique (CNRS) | Strong · 3 | Strong · 2 | Strong · 2 | Absent | Absent |
| Union Carbide Corporation | Absent | Absent | Absent | Strong · 1 | Strong · 1 |
| Bourilkov, Jordan T. | Absent | Absent | Absent | Absent | Absent |
| Gilicinski, Andrew G. | Absent | Absent | Absent | Absent | Absent |
Frequently asked questions
The corpus in scope contains 3 patent families. This is an exceptionally small dataset, and conclusions about market competition or technology breadth should be treated accordingly.
The Centre National de la Recherche Scientifique (CNRS), the Institut National Polytechnique de Toulouse, IRT Antoine de Saint Exupery, and Zodiac Aerotechnics form the leading group, each holding 3 patent records. Gillette Co and Union Carbide Corporation each hold 1 patent record.
Filing activity was recorded in 2019 (2 records) and 2020 (1 record), with no filings before or after in the observation window. The lifecycle is classified as Decline, and the absence of activity since 2020 is not explained by publication lag alone.
France leads with 2 patent records, followed by WIPO (PCT) with 2 records and Japan with 1 record. No USPTO or EPO (outside France) filings are recorded in this corpus.
Yes, within the French consortium. CNRS, Institut National Polytechnique de Toulouse, IRT Antoine de Saint Exupery, and Zodiac Aerotechnics each co-filed with all other members of the group, with 3 co-filed records per pair. Gillette Co co-filed with individual inventors in a separate, smaller cluster. No telecom operators appear as co-applicants.
H01M (batteries, cells and fuel cells) is the dominant IPC class with 3 records. G01R (electric and magnetic measurement) has 2 records. H02J (power supply and grid systems) and several materials-processing classes (B24B, C01B, C09G, C09K, C11D) each have 1 record.
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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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