Progressing cavity devices and assemblies for coupling multiple stages of progressing cavity devices
US-2025290507-A1 · Sep 18, 2025 · US
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conical shape
conical shape · 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 | F04C2250/201 |
| Official title | conical shape |
| Display label | conical shape |
| Total patents | 11 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 2 |
| 2020 | 2 |
| 2021 | 1 |
| 2022 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Progressing cavity devices and assemblies for coupling multiple stages of progressing cavity devices
US-12338819-B2 · Jun 24, 2025 · US
Progressing cavity devices and assemblies for coupling multiple stages of progressing cavity devices
US-2022145882-A1 · May 12, 2022 · US
Scroll compressor for a vehicle air-conditioning system having spiral wall including conical cut
US-10989193-B2 · Apr 27, 2021 · US
Screw rotor
US-2020325897-A1 · Oct 15, 2020 · US
Method to improve downhole motor durability
US-10626866-B2 · Apr 21, 2020 · US
Scroll compressor for a vehicle air-conditioning system
US-2018335031-A1 · Nov 22, 2018 · US
Design and Method to Improve Downhole Motor Durability
US-2018003174-A1 · Jan 4, 2018 · US
Side channel liquid ring pump and impeller for side channel liquid ring pump
US-9695835-B2 · Jul 4, 2017 · US
Adjustable interference progressive cavity pump/motor for predictive wear
US-2016208798-A1 · Jul 21, 2016 · US
Side Channel Liquid Ring Pump and Impeller for Side Channel Liquid Ring Pump
US-2015044015-A1 · Feb 12, 2015 · US