Valve with removable seat
US-10502324-B2 · Dec 10, 2019 · US
Guillotine or blade-type valves, e.g. no passage through the valve member
Guillotine or blade-type valves, e.g. no passage through the valve member · 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 | F16K3/0281 |
| Official title | {Guillotine or blade-type valves, e.g. no passage through the valve member} |
| Display label | Guillotine or blade-type valves, e.g. no passage through the valve member |
| Total patents | 155 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 6 |
| 2017 | 11 |
| 2018 | 22 |
| 2019 | 16 |
| 2020 | 16 |
| 2021 | 11 |
| 2022 | 20 |
| 2023 | 20 |
| 2024 | 16 |
| 2025 | 9 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Air Shutoff Valve
US-2019360437-A1 · Nov 28, 2019 · US
Valve module, and steam turbine and power generation system including the same
US-10480344-B2 · Nov 19, 2019 · US
Air shutoff valve
US-10473067-B1 · Nov 12, 2019 · US
Air shutoff valve
US-10458375-B1 · Oct 29, 2019 · US
Method of controlling chemical concentration in electrolyte and semiconductor apparatus
US-2019323142-A1 · Oct 24, 2019 · US
Gate valve
US-10436331-B2 · Oct 8, 2019 · US
Closure device
US-2019293187-A1 · Sep 26, 2019 · US
Solid wedge disk valve with cartridge-carriage
US-2019293188-A1 · Sep 26, 2019 · US
Asymetrically cutting valve seats
US-10422197-B2 · Sep 24, 2019 · US
Gate valve protector sleeve
US-10378659-B2 · Aug 13, 2019 · US
Valve body with integral bypass
US-10378661-B2 · Aug 13, 2019 · US
Mounting structure of valve plate with respect to valve rod
US-2019211936-A1 · Jul 11, 2019 · US
Pool valve assembly
US-2019194966-A1 · Jun 27, 2019 · US
Discharge valve system and method
US-2019101216-A1 · Apr 4, 2019 · US
Cryopump and gate valve
US-2018355858-A1 · Dec 13, 2018 · US
Vacuum pumping device, vacuum pump, and vacuum valve
US-2018340521-A1 · Nov 29, 2018 · US
Valve module, and steam turbine and power generation system including the same
US-2018334919-A1 · Nov 22, 2018 · US
Sealing components and methods of manufacture
US-10119615-B2 · Nov 6, 2018 · US
Slit valve assembly having a spacer for maintaining a gap
US-10113651-B2 · Oct 30, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16K3/0281?
- CPC F16K3/0281 is the Cooperative Patent Classification code for “Guillotine or blade-type valves, e.g. no passage through the valve member.”
- How many patents are filed under CPC F16K3/0281 (Guillotine or blade-type valves, e.g. no passage through the valve member)?
- Our database includes 155 publications tagged with this CPC code.
- Is patent activity under CPC F16K3/0281 growing?
- Publication counts under this code: 16 in 2024 vs 9 in 2025 (latest complete years).