Gear pump bearing with hybrid pad shutoff
US-11143183-B2 · Oct 12, 2021 · US
with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps
with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps · 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 | F04C15/064 |
| Official title | {with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps} |
| Display label | with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps |
| Total patents | 89 |
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 | 7 |
| 2017 | 11 |
| 2018 | 10 |
| 2019 | 8 |
| 2020 | 15 |
| 2021 | 9 |
| 2022 | 4 |
| 2023 | 5 |
| 2024 | 5 |
| 2025 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fixed Displacement Pump For Use For Conveying A Hydraulic Fluid In A Closed Hydraulic Circuit, Closed Hydraulic Circuit, Construction Machine And Method For Operating A Fixed Displacement Pump In A Closed Hydraulic Circuit
US-2021115921-A1 · Apr 22, 2021 · US
Oil pump
US-2021033091-A1 · Feb 4, 2021 · US
Electromotive oil pump comprising a non-return valve
US-2020340462-A1 · Oct 29, 2020 · US
Scavenging centrifugal baffle pump
US-2020340475-A1 · Oct 29, 2020 · US
Gear pump bearing with hybrid pad shutoff
US-2020309123-A1 · Oct 1, 2020 · US
Vane rotary compressor
US-2020277956-A1 · Sep 3, 2020 · US
Rotary fluid pressure device with drive-in-drive valve arrangement
US-2020270993-A1 · Aug 27, 2020 · US
Oscillating piston pump for fluids
US-2020217314-A1 · Jul 9, 2020 · US
Oil pump
US-10662942-B2 · May 26, 2020 · US
Transfer device
US-10641266-B2 · May 5, 2020 · US
Pump unit for feeding fuel, preferably diesel fuel, to an internal combustion engine
US-2020124008-A1 · Apr 23, 2020 · US
Linear compressor
US-2020095995-A1 · Mar 26, 2020 · US
Rotary fluid pressure device with drive-in-drive valve arrangement
US-10590771-B2 · Mar 17, 2020 · US
Variable Displacement Pump
US-2020080555-A1 · Mar 12, 2020 · US
Pump unit for providing a hydraulic pressure for actuating an actuator in the drive train of a motor vehicle
US-2020080573-A1 · Mar 12, 2020 · US
Solenoid valve and oil pump
US-10584803-B2 · Mar 10, 2020 · US
Oil pump device
US-2020032794-A1 · Jan 30, 2020 · US
Diverter valve for progressing cavity pump
US-10450838-B2 · Oct 22, 2019 · US
Compressor
US-2019301449-A1 · Oct 3, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04C15/064?
- CPC F04C15/064 is the Cooperative Patent Classification code for “with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps.”
- How many patents are filed under CPC F04C15/064 (with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps)?
- Our database includes 89 publications tagged with this CPC code.
- Is patent activity under CPC F04C15/064 growing?
- Publication counts under this code: 5 in 2024 vs 9 in 2025 (latest complete years).