Electrochemical cell, electrochemical cell device, module, and module housing device
US-2025385278-A1 · Dec 18, 2025 · US
Chromium complex oxides
Chromium complex oxides · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01M8/0219 |
| Official title | {Chromium complex oxides} |
| Display label | Chromium complex oxides |
| Total patents | 42 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 5 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 5 |
| 2024 | 9 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fuel cell stack assembly including heat sink inserts
US-12341224-B2 · Jun 24, 2025 · US
Interconnector for a stack of solid soec/sofc-type oxide cells having tabs with optimised geometry
US-2024429405-A1 · Dec 26, 2024 · US
Interconnector for a stack of solid oxide cells of the SOEC/SOFC type including different elements in relief
US-12170389-B2 · Dec 17, 2024 · US
Interconnector for a stack of solid oxide cells of the soec/sofc type including different elements in relief
US-2024339635-A1 · Oct 10, 2024 · US
Cell, cell stack device, module and module-containing device
US-12068514-B2 · Aug 20, 2024 · US
Electrochemical cell chromium poisoning prevention materials
US-12051830-B2 · Jul 30, 2024 · US
Electrically conductive member, electrochemical cell device, module, module housing device, slurry, electrically conductive member manufacturing method, conductive material, and conductive powder material
US-2024213500-A1 · Jun 27, 2024 · US
Solid oxide fuel cells, systems including such solid oxide fuel cells, and related methods of making
US-2024120508-A1 · Apr 11, 2024 · US
Stainless steel for fuel cell separator plate and manufacturing method therefor
US-11923580-B2 · Mar 5, 2024 · US
Component for solid oxide fuel cell
US-2024072266-A1 · Feb 29, 2024 · US
Electrochemical cell chromium poisoning prevention materials
US-2023317972-A1 · Oct 5, 2023 · US
Fuel cell stack assembly including heat sink inserts
US-2023307668-A1 · Sep 28, 2023 · US
Cell, cell stack device, module and module-containing device
US-2023261235-A1 · Aug 17, 2023 · US
Cell, cell stack device, module and module-containing device
US-11688875-B2 · Jun 27, 2023 · US
Interconnector for solid-oxide electrochemical cell stack and solid-oxide electrochemical cell stack
US-2023120134-A1 · Apr 20, 2023 · US
Cell stack and electrochemical cell
US-11349127-B2 · May 31, 2022 · US
Fuel cell interconnect with iron rich rib regions and method of making thereof
US-11335914-B2 · May 17, 2022 · US
Fuel cell systems containing chromium filters
US-11081704-B2 · Aug 3, 2021 · US
Cell, cell stack device, module and module housing device
US-10998569-B2 · May 4, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01M8/0219?
- CPC H01M8/0219 is the Cooperative Patent Classification code for “Chromium complex oxides.”
- How many patents are filed under CPC H01M8/0219 (Chromium complex oxides)?
- Our database includes 42 publications tagged with this CPC code.
- Is patent activity under CPC H01M8/0219 growing?
- Publication counts under this code: 9 in 2024 vs 2 in 2025 (latest complete years).