Pipe apparatus, coupling devices, and methods
US-12398831-B2 · Aug 26, 2025 · US
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the sealing rings having only one lip
the sealing rings having only one lip · 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 | F16L17/032 |
| Official title | {the sealing rings having only one lip} |
| Display label | the sealing rings having only one lip |
| Total patents | 21 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 4 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 4 |
| 2021 | 2 |
| 2022 | 1 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Sealing Device And Sealing Structure
US-2025264159-A1 · Aug 21, 2025 · US
Pipe apparatus, coupling devices, and methods
US-2025052342-A1 · Feb 13, 2025 · US
Hydrant shoe assembly
US-11306463-B2 · Apr 19, 2022 · US
Pipe coupling
US-11193609-B2 · Dec 7, 2021 · US
Flow Path Member, Flow Path Unit, And Liquid Ejecting Apparatus
US-2021131591-A1 · May 6, 2021 · US
Device for coupling a rigid male endpiece to a flexible female pipe, and production method therefor
US-10865921-B2 · Dec 15, 2020 · US
Hydrant shoe assembly
US-2020354930-A1 · Nov 12, 2020 · US
Hydrant shoe assembly
US-10774508-B2 · Sep 15, 2020 · US
Hydrant shoe assembly
US-2020071915-A1 · Mar 5, 2020 · US
Pipe joint
US-10520119-B2 · Dec 31, 2019 · US
Pipe coupling
US-2019264843-A1 · Aug 29, 2019 · US
Pipe joint
US-10006572-B2 · Jun 26, 2018 · US
Device for coupling a rigid male endpiece to a flexible female pipe, and production method therefor
US-2018017195-A1 · Jan 18, 2018 · US
Pipe joint
US-9719618-B2 · Aug 1, 2017 · US
Combination mechanical/fusion pipe fitting with push connect coupling arrangement
US-9611958-B1 · Apr 4, 2017 · US
Pipe joint
US-9488300-B2 · Nov 8, 2016 · US
Seal having projections and coupling having pockets
US-9482374-B2 · Nov 1, 2016 · US
Pipe joint
US-2016102792-A1 · Apr 14, 2016 · US
Pipe joint
US-2016102790-A1 · Apr 14, 2016 · US