Backflow prevention and method of manufacture
US-2022349485-A1 · Nov 3, 2022 · US
with guided stems
with guided stems · 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 | F16K15/06 |
| Official title | with guided stems |
| Display label | with guided stems |
| Total patents | 108 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 3 |
| 2017 | 6 |
| 2018 | 6 |
| 2019 | 12 |
| 2020 | 10 |
| 2021 | 10 |
| 2022 | 12 |
| 2023 | 9 |
| 2024 | 13 |
| 2025 | 14 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Backflow prevention and method of manufacture
US-11384853-B2 · Jul 12, 2022 · US
Check valve, air-conditioning apparatus, and method of manufacturing check valve
US-2022134407-A1 · May 5, 2022 · US
Control valve
US-11255354-B2 · Feb 22, 2022 · US
Fuel filter device
US-11168655-B2 · Nov 9, 2021 · US
Impact-absorbing pressure relief assembly having cover
US-11148506-B2 · Oct 19, 2021 · US
Male coupling member
US-11118717-B2 · Sep 14, 2021 · US
Valve assembly for a fluid end with limited access
US-11105327-B2 · Aug 31, 2021 · US
Valve body assemby, water tank, spray system, and unmanned aerial vehicle
US-2021178415-A1 · Jun 17, 2021 · US
Clothes treating apparatus
US-11035066-B2 · Jun 15, 2021 · US
Backflow Prevention and Method of Manufacture
US-2021156486-A1 · May 27, 2021 · US
Valve
US-2021140549-A1 · May 13, 2021 · US
Control valve
US-2021140361-A1 · May 13, 2021 · US
Backflow prevention and method of manufacture
US-10914391-B2 · Feb 9, 2021 · US
Novel Valve Configuration
US-2020400242-A1 · Dec 24, 2020 · US
Valve assembly for a tire inflation system
US-10864783-B2 · Dec 15, 2020 · US
Valve Assembly for a Fluid End with Limited Access
US-2020362975-A1 · Nov 19, 2020 · US
Electromotive oil pump comprising a non-return valve
US-2020340462-A1 · Oct 29, 2020 · US
Systems and methods for applying vacuum pressure to composite parts
US-10814533-B2 · Oct 27, 2020 · US
Control valve
US-2020318747-A1 · Oct 8, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16K15/06?
- CPC F16K15/06 is the Cooperative Patent Classification code for “with guided stems.”
- How many patents are filed under CPC F16K15/06 (with guided stems)?
- Our database includes 108 publications tagged with this CPC code.
- Is patent activity under CPC F16K15/06 growing?
- Publication counts under this code: 13 in 2024 vs 14 in 2025 (latest complete years).