Insulation gasket with rtj seal for rtj flanges in high-pressure piping
US-2025305605-A1 · Oct 2, 2025 · US
for flanged joints
for flanged joints · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F16L25/026 |
| Official title | {for flanged joints} |
| Display label | for flanged joints |
| Total patents | 30 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 1 |
| 2017 | 4 |
| 2018 | 6 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Triple-walled conduit, aircraft comprising at least one such triple-walled conduit
US-2025283558-A1 · Sep 11, 2025 · US
Johnston coupling with galvanic separation
US-11598467-B2 · Mar 7, 2023 · US
Aircraft fuel tank isolator
US-11435013-B2 · Sep 6, 2022 · US
Aircraft fuel tank isolator
US-2021324974-A1 · Oct 21, 2021 · US
Johnston coupling with galvanic separation
US-2021254771-A1 · Aug 19, 2021 · US
Aircraft fuel tank isolator
US-11079044-B2 · Aug 3, 2021 · US
Ventilation conduit for an aircraft
US-10734622-B2 · Aug 4, 2020 · US
Bulkhead fitting
US-10663096-B2 · May 26, 2020 · US
Composite tubes for a fluid transport system
US-10633111-B2 · Apr 28, 2020 · US
Aircraft fuel tank isolator
US-2019301645-A1 · Oct 3, 2019 · US
Flange assembly for use with a solid oxide fuel cell system
US-10283804-B2 · May 7, 2019 · US
Bulkhead Fitting
US-2018266596-A1 · Sep 20, 2018 · US
Bulkhead fitting
US-10030798-B2 · Jul 24, 2018 · US
Bulkhead fitting assembly
US-9995418-B2 · Jun 12, 2018 · US
Bulkhead fitting assembly and method of sealing a bulkhead opening
US-9989176-B2 · Jun 5, 2018 · US
Flange assembly for use with a solid oxide fuel cell system
US-2018115011-A1 · Apr 26, 2018 · US
Bulkhead fitting assembly and method of making
US-9885434-B2 · Feb 6, 2018 · US
Composite Tubes for a Fluid Transport System
US-2017291717-A1 · Oct 12, 2017 · US
Ventilation conduit for an aircraft
US-2017259937-A1 · Sep 14, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16L25/026?
- CPC F16L25/026 is the Cooperative Patent Classification code for “for flanged joints.”
- How many patents are filed under CPC F16L25/026 (for flanged joints)?
- Our database includes 30 publications tagged with this CPC code.
- Is patent activity under CPC F16L25/026 growing?
- Publication counts under this code: 1 in 2023 vs 2 in 2025 (latest complete years).