Coupling assembly for pipes
US-11815205-B2 · Nov 14, 2023 · US
with partly-spherical engaging surfaces
with partly-spherical engaging surfaces · 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 | F16L27/04 |
| Official title | with partly-spherical engaging surfaces |
| Display label | with partly-spherical engaging surfaces |
| Total patents | 90 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 6 |
| 2017 | 2 |
| 2018 | 5 |
| 2019 | 6 |
| 2020 | 8 |
| 2021 | 4 |
| 2022 | 11 |
| 2023 | 19 |
| 2024 | 12 |
| 2025 | 13 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Tube coupling
US-11802640-B2 · Oct 31, 2023 · US
Tube coupling
US-11788655-B2 · Oct 17, 2023 · US
Elbow assembly
US-2023285708-A1 · Sep 14, 2023 · US
Bathtub drain connection systems
US-2023279649-A1 · Sep 7, 2023 · US
Piston of a hydraulic piston machine
US-2023279947-A1 · Sep 7, 2023 · US
Joint press adapter
US-2023191572-A1 · Jun 22, 2023 · US
Device for coupling two pipes of a run of piping comprising a set of frustoconical flanges, and piping comprising the coupling device
US-11680668-B2 · Jun 20, 2023 · US
Ball joint
US-11680667-B2 · Jun 20, 2023 · US
Bathtub drain connection systems
US-11674294-B2 · Jun 13, 2023 · US
Elbow assembly
US-11672936-B2 · Jun 13, 2023 · US
Self-centering blind mate fluid coupling
US-2023143344-A1 · May 11, 2023 · US
Shower column assembly
US-2023086368-A1 · Mar 23, 2023 · US
Tube coupling
US-2023022280-A1 · Jan 26, 2023 · US
Tube coupling
US-2023029012-A1 · Jan 26, 2023 · US
Enhanced gimbal joint for conduits
US-2022397219-A1 · Dec 15, 2022 · US
Refueling device
US-11465768-B2 · Oct 11, 2022 · US
Tube coupling assembly
US-11408540-B2 · Aug 9, 2022 · US
Joint press adapter
US-2022241945-A1 · Aug 4, 2022 · US
Connection adapter for a container for a fire-extinguishing agent pertaining to a fire-extinguishing system
US-11400329-B2 · Aug 2, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16L27/04?
- CPC F16L27/04 is the Cooperative Patent Classification code for “with partly-spherical engaging surfaces.”
- How many patents are filed under CPC F16L27/04 (with partly-spherical engaging surfaces)?
- Our database includes 90 publications tagged with this CPC code.
- Is patent activity under CPC F16L27/04 growing?
- Publication counts under this code: 12 in 2024 vs 13 in 2025 (latest complete years).