Compressor assembly comprising a motor driving one or more compressor rotors and method for fabricating a housing part of such a compressor assembly
US-12590586-B2 · Mar 31, 2026 · US
with toothed rotary pistons
with toothed rotary pistons · 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 | F04C18/14 |
| Official title | with toothed rotary pistons |
| Display label | with toothed rotary pistons |
| Total patents | 29 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 4 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 2 |
| 2021 | 3 |
| 2023 | 5 |
| 2024 | 4 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Compressor device and compressor assembly comprising such a compressor device
US-2025230813-A1 · Jul 17, 2025 · US
Compressor assembly comprising a motor driving one or more compressor rotors and method for fabricating a housing part of such a compressor assembly
US-2025122877-A1 · Apr 17, 2025 · US
EGR pump system and control method of EGR pump
US-12188437-B2 · Jan 7, 2025 · US
Gas compressor
US-12146481-B2 · Nov 19, 2024 · US
Screw compressor and screw rotor
US-12031536-B2 · Jul 9, 2024 · US
EGR pump system and control method of EGR pump
US-12006896-B2 · Jun 11, 2024 · US
Roots pump containing rotors that capture and discharge a foreign substance
US-11976656-B2 · May 7, 2024 · US
Screw Compressor and Screw Rotor
US-2023392598-A1 · Dec 7, 2023 · US
Egr pump system and control method of egr pump
US-2023374958-A1 · Nov 23, 2023 · US
Gas compressor
US-2023366400-A1 · Nov 16, 2023 · US
Roots pump
US-2023304497-A1 · Sep 28, 2023 · US
EGR pump system and control method of EGR pump
US-11668269-B2 · Jun 6, 2023 · US
Liquid-Cooled Type Compressor
US-2021190060-A1 · Jun 24, 2021 · US
Egr pump system and control method of egr pump
US-2021071667-A1 · Mar 11, 2021 · US
Egr pump system and control method of egr pump
US-2021071664-A1 · Mar 11, 2021 · US
Oil-injected vacuum pump element
US-10670014-B2 · Jun 2, 2020 · US
Screw compressor
US-2020040896-A1 · Feb 6, 2020 · US
Magnetically controlled valve and pump devices and methods of using the same
US-10400915-B2 · Sep 3, 2019 · US
Oil-injected vacuum pump element
US-2018274541-A1 · Sep 27, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04C18/14?
- CPC F04C18/14 is the Cooperative Patent Classification code for “with toothed rotary pistons.”
- How many patents are filed under CPC F04C18/14 (with toothed rotary pistons)?
- Our database includes 29 publications tagged with this CPC code.
- Is patent activity under CPC F04C18/14 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).