Emergency detachable pipe coupling
US-10514121-B2 · Dec 24, 2019 · US
at least one of two lift valves being opened automatically when the coupling is applied
at least one of two lift valves being opened automatically when the coupling is applied · 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 | F16L37/32 |
| Official title | at least one of two lift valves being opened automatically when the coupling is applied |
| Display label | at least one of two lift valves being opened automatically when the coupling is applied |
| Total patents | 193 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 10 |
| 2017 | 17 |
| 2018 | 14 |
| 2019 | 20 |
| 2020 | 16 |
| 2021 | 22 |
| 2022 | 21 |
| 2023 | 16 |
| 2024 | 27 |
| 2025 | 17 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Self-closing bag connector
US-10507318-B2 · Dec 17, 2019 · US
Quick coupling with multi-piece elastomer seal
US-2019285181-A1 · Sep 19, 2019 · US
Pipe joint and joint connection device
US-2019285207-A1 · Sep 19, 2019 · US
Fluid connectors for modular cooling systems
US-2019269039-A1 · Aug 29, 2019 · US
Emergency detachment device of fluid handling device
US-10371298-B2 · Aug 6, 2019 · US
Fluid connectors for modular cooling systems
US-10327358-B2 · Jun 18, 2019 · US
Coupling System For Providing A Plurality Of Fluid Connections
US-2019162347-A1 · May 30, 2019 · US
Split heating and cooling systems
US-2019072286-A1 · Mar 7, 2019 · US
A domestic appliance system with push-fit fluid coupling
US-2019040987-A1 · Feb 7, 2019 · US
Pipe coupling member having valve element and coil spring for use therein
US-2019024835-A1 · Jan 24, 2019 · US
Non-spill connect under pressure coupler
US-10156310-B2 · Dec 18, 2018 · US
Split heating and cooling systems
US-10156369-B2 · Dec 18, 2018 · US
Recording apparatus
US-10118397-B2 · Nov 6, 2018 · US
Low engagement force aerial refueling coupling
US-2018297715-A1 · Oct 18, 2018 · US
Single-Use Aseptic Fluid Couplings
US-2018296817-A1 · Oct 18, 2018 · US
Male or female quick coupling element and quick coupling including such an element
US-10094502-B2 · Oct 9, 2018 · US
Bouancy apparatus system integrated with a rapid release emergency disconnect system
US-10072784-B2 · Sep 11, 2018 · US
Fluid apparatus
US-2018252352-A1 · Sep 6, 2018 · US
Emergency detachment device of fluid handling device
US-2018224034-A1 · Aug 9, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16L37/32?
- CPC F16L37/32 is the Cooperative Patent Classification code for “at least one of two lift valves being opened automatically when the coupling is applied.”
- How many patents are filed under CPC F16L37/32 (at least one of two lift valves being opened automatically when the coupling is applied)?
- Our database includes 193 publications tagged with this CPC code.
- Is patent activity under CPC F16L37/32 growing?
- Publication counts under this code: 27 in 2024 vs 17 in 2025 (latest complete years).