Equal-walled gerotor pump for wellbore applications
US-2019390669-A1 · Dec 26, 2019 · US
Hydrostatic or hydrodynamic bearing assemblies specially adapted for rotary positive displacement pumps or compressors
Hydrostatic or hydrodynamic bearing assemblies specially adapted for rotary positive displacement pumps or compressors · 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 | F04C2240/54 |
| Official title | Hydrostatic or hydrodynamic bearing assemblies specially adapted for rotary positive displacement pumps or compressors |
| Display label | Hydrostatic or hydrodynamic bearing assemblies specially adapted for rotary positive displacement pumps or compressors |
| Total patents | 164 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 17 |
| 2017 | 10 |
| 2018 | 19 |
| 2019 | 15 |
| 2020 | 11 |
| 2021 | 11 |
| 2022 | 13 |
| 2023 | 20 |
| 2024 | 22 |
| 2025 | 14 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electric pump unit
US-10400767-B2 · Sep 3, 2019 · US
Rotary vacuum pump with a rotor end groove
US-2019242383-A1 · Aug 8, 2019 · US
Gear pump bearing
US-10294985-B2 · May 21, 2019 · US
Fuel pump
US-2018372096-A1 · Dec 27, 2018 · US
Aerostatic thrust bearing and method of aerostatically supporting a thrust load in a scroll compressor
US-2018363658-A1 · Dec 20, 2018 · US
Aerostatic thrust bearing and method of aerostatically supporting a thrust load in a scroll compressor
US-2018363656-A1 · Dec 20, 2018 · US
Aerostatic thrust bearing and method of aerostatically supporting a thrust load in a scroll compressor
US-2018363657-A1 · Dec 20, 2018 · US
Pump bearing flow control
US-2018340471-A1 · Nov 29, 2018 · US
Equal-walled gerotor pump for wellbore applications
US-10138885-B2 · Nov 27, 2018 · US
Gear pump journal bearing lubrication flow feed
US-2018298899-A1 · Oct 18, 2018 · US
Removable hydropad
US-2018230998-A1 · Aug 16, 2018 · US
Fuel flow control assembly of aircraft engine and method
US-2018209419-A1 · Jul 26, 2018 · US
Gear pump and image recording apparatus
US-10022977-B2 · Jul 17, 2018 · US
Fuel pump
US-2018112659-A1 · Apr 26, 2018 · US
Liquid pump/electric motor combination
US-2018100503-A1 · Apr 12, 2018 · US
Co-rotating scroll compressor having displacement bearing
US-2018080445-A1 · Mar 22, 2018 · US
Gerotor assembly
US-2018058450-A1 · Mar 1, 2018 · US
Gear pump bearing
US-2018051743-A1 · Feb 22, 2018 · US
Gear pump bearing
US-2018051742-A1 · Feb 22, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04C2240/54?
- CPC F04C2240/54 is the Cooperative Patent Classification code for “Hydrostatic or hydrodynamic bearing assemblies specially adapted for rotary positive displacement pumps or compressors.”
- How many patents are filed under CPC F04C2240/54 (Hydrostatic or hydrodynamic bearing assemblies specially adapted for rotary positive displacement pumps or compressors)?
- Our database includes 164 publications tagged with this CPC code.
- Is patent activity under CPC F04C2240/54 growing?
- Publication counts under this code: 22 in 2024 vs 14 in 2025 (latest complete years).