Gap limiting coupling
US-2026085774-A1 · Mar 26, 2026 · US
Metal sealing rings
Metal sealing rings · 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 | F16L17/08 |
| Official title | Metal sealing rings |
| Display label | Metal sealing rings |
| Total patents | 43 |
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 | 6 |
| 2017 | 4 |
| 2018 | 7 |
| 2019 | 5 |
| 2020 | 7 |
| 2021 | 3 |
| 2022 | 4 |
| 2023 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Clamped saddle for directional hot-tapping tubulars
US-11781694-B2 · Oct 10, 2023 · US
Clamped saddle for directional hot-tapping tubulars
US-2023228357-A1 · Jul 20, 2023 · US
High capacity universal connector
US-11572968-B2 · Feb 7, 2023 · US
Self-sealing a flange
US-11519537-B2 · Dec 6, 2022 · US
Hands free gasket retention mechanism
US-11441707-B2 · Sep 13, 2022 · US
Self-sealing a flange
US-2022154859-A1 · May 19, 2022 · US
Sealing device
US-11255437-B2 · Feb 22, 2022 · US
Torque limited fitting
US-11149890-B2 · Oct 19, 2021 · US
Bolted duct joints
US-11118513-B2 · Sep 14, 2021 · US
Metal seal fitting for use on a pipeline
US-11098802-B2 · Aug 24, 2021 · US
Tubular connecting arrangement and method of sealingly connecting tubulars
US-10753517-B2 · Aug 25, 2020 · US
External pressure CX gasket
US-10704712-B1 · Jul 7, 2020 · US
High capacity universal connector
US-2020116282-A1 · Apr 16, 2020 · US
Hands free gasket retention mechanism
US-2020080670-A1 · Mar 12, 2020 · US
Sealing device
US-2020049255-A1 · Feb 13, 2020 · US
Bolted duct joints
US-2020025098-A1 · Jan 23, 2020 · US
High capacity universal connector
US-10527207-B2 · Jan 7, 2020 · US
Gasket with multiple seal rings
US-10400923-B2 · Sep 3, 2019 · US
Seal ring element
US-10364925-B2 · Jul 30, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16L17/08?
- CPC F16L17/08 is the Cooperative Patent Classification code for “Metal sealing rings.”
- How many patents are filed under CPC F16L17/08 (Metal sealing rings)?
- Our database includes 43 publications tagged with this CPC code.
- Is patent activity under CPC F16L17/08 growing?
- Publication counts under this code: 4 in 2022 vs 3 in 2023 (latest complete years).