Fluid coupling
US-D1120238-S · Mar 24, 2026 · US
fixed by means of teeth or hooks
fixed by means of teeth or hooks · 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 | F16L33/035 |
| Official title | fixed by means of teeth or hooks |
| Display label | fixed by means of teeth or hooks |
| Total patents | 61 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 1 |
| 2020 | 9 |
| 2021 | 9 |
| 2022 | 5 |
| 2023 | 8 |
| 2024 | 12 |
| 2025 | 4 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fluid couplings
US-12565956-B2 · Mar 3, 2026 · US
Single-use genderless aseptic fluid couplings
US-2025224057-A1 · Jul 10, 2025 · US
Fluid connection assembly
US-2025122962-A1 · Apr 17, 2025 · US
Fluid connection assembly
US-2025122954-A1 · Apr 17, 2025 · US
Single-use genderless aseptic fluid couplings
US-12215810-B2 · Feb 4, 2025 · US
Release tool for use with a push-fit valve
US-12179322-B2 · Dec 31, 2024 · US
Fluid coupling
US-D1053997-S · Dec 10, 2024 · US
Fluid coupling
US-D1052698-S · Nov 26, 2024 · US
Locking connector coupling assembly
US-2024377007-A1 · Nov 14, 2024 · US
Fastening element of a t-shaped profile hose, connection arrangement with the fastening element, setting device as well as manufacturing and connection method
US-2024369164-A1 · Nov 7, 2024 · US
Cylinder member, first joint, and pipe joint
US-2024328549-A1 · Oct 3, 2024 · US
Pipe connection assembly and inflatable product
US-2024309979-A1 · Sep 19, 2024 · US
Joint unit and method for assembling joint unit
US-12055243-B2 · Aug 6, 2024 · US
Barbed Stopcock and Securement Clips for Medical Tubing
US-2024198077-A1 · Jun 20, 2024 · US
Retainer and pipe joint using retainer
US-11959568-B2 · Apr 16, 2024 · US
Single-use genderless aseptic fluid couplings
US-2024035600-A1 · Feb 1, 2024 · US
Fluid connection device
US-11867329-B2 · Jan 9, 2024 · US
Hose clamp
US-11821552-B2 · Nov 21, 2023 · US
Single-use genderless aseptic fluid couplings
US-11781687-B2 · Oct 10, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16L33/035?
- CPC F16L33/035 is the Cooperative Patent Classification code for “fixed by means of teeth or hooks.”
- How many patents are filed under CPC F16L33/035 (fixed by means of teeth or hooks)?
- Our database includes 61 publications tagged with this CPC code.
- Is patent activity under CPC F16L33/035 growing?
- Publication counts under this code: 12 in 2024 vs 4 in 2025 (latest complete years).