Rotor, motor, compressor, and refrigeration air conditioner
US-11121593-B2 · Sep 14, 2021 · US
having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members · 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 | F04C18/34 |
| Official title | having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members |
| Display label | having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members |
| Total patents | 75 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 8 |
| 2017 | 14 |
| 2018 | 14 |
| 2019 | 10 |
| 2020 | 6 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 4 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Motor vehicle vacuum pump
US-11047391-B2 · Jun 29, 2021 · US
Compressor pump structure and compressor
US-10989194-B2 · Apr 27, 2021 · US
Fluid machinery, heat exchange equipment, and operating method for fluid machinery
US-10941771-B2 · Mar 9, 2021 · US
Compressor pump structure and compressor
US-10851781-B2 · Dec 1, 2020 · US
Two-cylinder hermetic compressor
US-10767651-B2 · Sep 8, 2020 · US
Fluid machinery, heat exchange equipment, and operating method for fluid machinery
US-10626858-B2 · Apr 21, 2020 · US
Electric compressor
US-10578108-B2 · Mar 3, 2020 · US
Compressor
US-10550885-B2 · Feb 4, 2020 · US
Fluid machine for vehicle
US-10527040-B2 · Jan 7, 2020 · US
Motor, rotor, compressor, and refrigeration and air conditioning apparatus
US-10483816-B2 · Nov 19, 2019 · US
Cord management system for a portable air compressor
US-10451050-B2 · Oct 22, 2019 · US
Rotary cylinder piston compressor pump and compressor with rotary cylinder piston compressor pump
US-2019316586-A1 · Oct 17, 2019 · US
Electric compressor
US-10396621-B2 · Aug 27, 2019 · US
Compressor pump structure and compressor
US-2019242381-A1 · Aug 8, 2019 · US
Compressor pump structure and compressor
US-2019226482-A1 · Jul 25, 2019 · US
Electric motor and compressor having the same
US-10361615-B2 · Jul 23, 2019 · US
Rotor, motor, compressor, and refrigeration air conditioner
US-2019027982-A1 · Jan 24, 2019 · US
Compressor having oil-level sensing system
US-10180139-B2 · Jan 15, 2019 · US
Heat cycle system
US-10174971-B2 · Jan 8, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04C18/34?
- CPC F04C18/34 is the Cooperative Patent Classification code for “having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members.”
- How many patents are filed under CPC F04C18/34 (having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members)?
- Our database includes 75 publications tagged with this CPC code.
- Is patent activity under CPC F04C18/34 growing?
- Publication counts under this code: 4 in 2024 vs 6 in 2025 (latest complete years).