Valve with combined rotation stop and stem blowout prevention
US-2026098595-A1 · Apr 9, 2026 · US
with a flange on the spindle which rests on a sealing ring
with a flange on the spindle which rests on a sealing ring · 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 | F16K41/16 |
| Official title | with a flange on the spindle which rests on a sealing ring |
| Display label | with a flange on the spindle which rests on a sealing ring |
| Total patents | 27 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 2 |
| 2024 | 5 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Valve packing apparatus and related methods
US-12359747-B2 · Jul 15, 2025 · US
Ringless zero clearance closure
US-12313186-B2 · May 27, 2025 · US
Disengageable valve backseat system and method
US-2025146588-A1 · May 8, 2025 · US
Valve packing apparatus and related methods
US-2025137553-A1 · May 1, 2025 · US
Valve packing apparatus and related methods
US-12215801-B2 · Feb 4, 2025 · US
Disengageable valve backseat system and method
US-12196332-B1 · Jan 14, 2025 · US
Disengageable valve backseat system and method
US-2024426388-A1 · Dec 26, 2024 · US
Metallic sealing assembly for sealing between a rotating shaft and a fixed frame
US-11933403-B2 · Mar 19, 2024 · US
Ringless zero clearance closure
US-2024084922-A1 · Mar 14, 2024 · US
Valve packing apparatus and related methods
US-2024068596-A1 · Feb 29, 2024 · US
Valve packing apparatus and related methods
US-2024068595-A1 · Feb 29, 2024 · US
Ringless zero clearance closure
US-11835154-B2 · Dec 5, 2023 · US
Ringless zero clearance closure
US-2023027605-A1 · Jan 26, 2023 · US
Electrically actuated flow control valve and method for operation of the flow control valve
US-11428340-B2 · Aug 30, 2022 · US
Valve with Grooved Sleeve
US-2021025519-A1 · Jan 28, 2021 · US
Metallic sealing assembly for sealing between a rotating shaft and a fixed frame
US-2021018098-A1 · Jan 21, 2021 · US
High temperature leak prevention for piping components and connections
US-10865914-B2 · Dec 15, 2020 · US
Electrically actuated flow control valve and method for operation of the flow control valve
US-2020378519-A1 · Dec 3, 2020 · US
Modular Valve
US-2019346064-A1 · Nov 14, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16K41/16?
- CPC F16K41/16 is the Cooperative Patent Classification code for “with a flange on the spindle which rests on a sealing ring.”
- How many patents are filed under CPC F16K41/16 (with a flange on the spindle which rests on a sealing ring)?
- Our database includes 27 publications tagged with this CPC code.
- Is patent activity under CPC F16K41/16 growing?
- Publication counts under this code: 5 in 2024 vs 6 in 2025 (latest complete years).