Rotary pump comprising a lubricating groove in the sealing stay
US-2017306950-A1 · Oct 26, 2017 · US
Rotary pumps
Rotary 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 | F01M2001/0238 |
| Official title | {Rotary pumps} |
| Display label | Rotary pumps |
| Total patents | 262 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 36 |
| 2017 | 34 |
| 2018 | 40 |
| 2019 | 36 |
| 2020 | 33 |
| 2021 | 23 |
| 2022 | 17 |
| 2023 | 14 |
| 2024 | 11 |
| 2025 | 8 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Positive displacement pump
US-2017227005-A1 · Aug 10, 2017 · US
Oil pump
US-2017211572-A1 · Jul 27, 2017 · US
Variable pressure pump with hydraulic passage
US-2017184096-A1 · Jun 29, 2017 · US
Oil pump
US-2017184099-A1 · Jun 29, 2017 · US
Method for diagnosing abrasion of electric oil pump rotor
US-9689773-B2 · Jun 27, 2017 · US
Electric oil pump
US-9683567-B2 · Jun 20, 2017 · US
Systems and methods for fluid pump outlet pressure regulation
US-2017167329-A1 · Jun 15, 2017 · US
Variable displacement pump
US-9670926-B2 · Jun 6, 2017 · US
Pre-compression dual spring pump control
US-9651046-B2 · May 16, 2017 · US
Vane oil pump
US-2017122315-A1 · May 4, 2017 · US
Lubricating fluid system for a vehicle with self compensation plate
US-2017107872-A1 · Apr 20, 2017 · US
Electronic pump motor control
US-9618156-B2 · Apr 11, 2017 · US
Automotive electric liquid pump
US-2017067469-A1 · Mar 9, 2017 · US
Mounting structure for electric oil pump
US-2017016442-A1 · Jan 19, 2017 · US
Oil pump for internal combustion engine
US-2017016363-A1 · Jan 19, 2017 · US
Method for diagnosing abrasion of electric oil pump rotor
US-2017003206-A1 · Jan 5, 2017 · US
Oil supply system for engine
US-2016356188-A1 · Dec 8, 2016 · US
Oil pump, engine cover and engine comprising the same
US-9512837-B2 · Dec 6, 2016 · US
Oil pump device
US-2016348673-A1 · Dec 1, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01M2001/0238?
- CPC F01M2001/0238 is the Cooperative Patent Classification code for “Rotary pumps.”
- How many patents are filed under CPC F01M2001/0238 (Rotary pumps)?
- Our database includes 262 publications tagged with this CPC code.
- Is patent activity under CPC F01M2001/0238 growing?
- Publication counts under this code: 11 in 2024 vs 8 in 2025 (latest complete years).