Scroll compressor
US-2018363653-A1 · Dec 20, 2018 · US
Balance weight, counterweight
Balance weight, counterweight · 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 | F04C2240/807 |
| Official title | Balance weight, counterweight |
| Display label | Balance weight, counterweight |
| Total patents | 219 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 18 |
| 2016 | 9 |
| 2017 | 21 |
| 2018 | 14 |
| 2019 | 19 |
| 2020 | 28 |
| 2021 | 29 |
| 2022 | 23 |
| 2023 | 16 |
| 2024 | 16 |
| 2025 | 19 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Scroll fluid machine
US-2018328361-A1 · Nov 15, 2018 · US
Scroll compressor
US-2018298901-A1 · Oct 18, 2018 · US
Compressor
US-2018291903-A1 · Oct 11, 2018 · US
Scroll compressor
US-10087937-B2 · Oct 2, 2018 · US
Electrically-driven compressor for vehicle
US-2018258935-A1 · Sep 13, 2018 · US
Compressor, heat pump device, air conditioner, and freezing machine
US-10027191-B2 · Jul 17, 2018 · US
Scroll compressor
US-9976556-B2 · May 22, 2018 · US
Scroll compressor
US-2018128269-A1 · May 10, 2018 · US
Electric motor for compressor, compressor, and refrigeration cycle device
US-2018106513-A1 · Apr 19, 2018 · US
Compressor
US-9945381-B2 · Apr 17, 2018 · US
Crankshaft with aligned drive and counterweight locating features
US-9909586-B2 · Mar 6, 2018 · US
Eccentric bush assembly structure of scroll compressor
US-2017356445-A1 · Dec 14, 2017 · US
Rotary-type compressor
US-2017350394-A1 · Dec 7, 2017 · US
Hermetic rotary compressor
US-9828996-B2 · Nov 28, 2017 · US
Scroll compressor
US-2017314557-A1 · Nov 2, 2017 · US
Scroll compressor
US-9797401-B2 · Oct 24, 2017 · US
Motor-operated compressor
US-2017292517-A1 · Oct 12, 2017 · US
Compressor Having Sound Isolation Feature
US-2017292519-A1 · Oct 12, 2017 · US
Compressor Having Sound Isolation Feature
US-2017292518-A1 · Oct 12, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04C2240/807?
- CPC F04C2240/807 is the Cooperative Patent Classification code for “Balance weight, counterweight.”
- How many patents are filed under CPC F04C2240/807 (Balance weight, counterweight)?
- Our database includes 219 publications tagged with this CPC code.
- Is patent activity under CPC F04C2240/807 growing?
- Publication counts under this code: 16 in 2024 vs 19 in 2025 (latest complete years).