Discharge valve arrangement for a refrigerant compressor
US-12018666-B2 · Jun 25, 2024 · US
having means for limiting the opening height (F04B53/101 and F04B53/1035 take precedence)
having means for limiting the opening height (F04B53/101 and F04B53/1035 take precedence) · 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 | F04B53/1085 |
| Official title | {having means for limiting the opening height (F04B53/101 and F04B53/1035 take precedence)} |
| Display label | having means for limiting the opening height (F04B53/101 and F04B53/1035 take precedence) |
| Total patents | 63 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 2 |
| 2017 | 8 |
| 2018 | 7 |
| 2019 | 8 |
| 2020 | 4 |
| 2021 | 7 |
| 2022 | 10 |
| 2023 | 4 |
| 2024 | 5 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Air compressor with ramped head deck
US-11971026-B2 · Apr 30, 2024 · US
Pump fluid end with suction valve closure assist
US-2024110550-A1 · Apr 4, 2024 · US
Piston of air compressor
US-11905945-B2 · Feb 20, 2024 · US
Pump fluid end with suction valve closure assist
US-11885316-B2 · Jan 30, 2024 · US
Air compressor
US-11828278-B2 · Nov 28, 2023 · US
Inertial pumps
US-2023279876-A1 · Sep 7, 2023 · US
Inertial pumps
US-11686327-B2 · Jun 27, 2023 · US
Air compressor with ramped head deck
US-2023048353-A1 · Feb 16, 2023 · US
Discharge valve arrangement for a refrigerant compressor
US-2022397109-A1 · Dec 15, 2022 · US
Valve and fluid control apparatus
US-11486388-B2 · Nov 1, 2022 · US
Air compressor
US-2022333589-A1 · Oct 20, 2022 · US
Piston of air compressor
US-2022333591-A1 · Oct 20, 2022 · US
Air compressor
US-2022333590-A1 · Oct 20, 2022 · US
Variable displacement pump with active bypass feedback control
US-2022307491-A1 · Sep 29, 2022 · US
Pump Fluid End with Suction Valve Closure Assist
US-2022154705-A1 · May 19, 2022 · US
Wear and corrosion resistant steel compositions and high pressure pumps and pump components comprised thereof
US-2022098962-A1 · Mar 31, 2022 · US
Pump fluid end with suction valve closure assist
US-11280326-B2 · Mar 22, 2022 · US
Fluid compressor having discharge port and valve
US-11268510-B2 · Mar 8, 2022 · US
Vacuum pump reed valve which will reduce cold start torque
US-11143188-B2 · Oct 12, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04B53/1085?
- CPC F04B53/1085 is the Cooperative Patent Classification code for “having means for limiting the opening height (F04B53/101 and F04B53/1035 take precedence).”
- How many patents are filed under CPC F04B53/1085 (having means for limiting the opening height (F04B53/101 and F04B53/1035 take precedence))?
- Our database includes 63 publications tagged with this CPC code.
- Is patent activity under CPC F04B53/1085 growing?
- Publication counts under this code: 5 in 2024 vs 3 in 2025 (latest complete years).