Compressor having sliding portion provided with oil retainer
US-11668308-B2 · Jun 6, 2023 · US
the inner and outer member being in contact along more than line or surface · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F04C18/3566 |
| Official title | {the inner and outer member being in contact along more than line or surface} |
| Display label | the inner and outer member being in contact along more than line or surface |
| Total patents | 12 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 1 |
| 2021 | 3 |
| 2022 | 2 |
| 2023 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-11668308-B2 · Jun 6, 2023 · US
US-11506203-B2 · Nov 22, 2022 · US
US-2022307505-A1 · Sep 29, 2022 · US
US-2021131436-A1 · May 6, 2021 · US
US-10989194-B2 · Apr 27, 2021 · US
US-10962010-B2 · Mar 30, 2021 · US
US-10718331-B2 · Jul 21, 2020 · US
US-10473102-B2 · Nov 12, 2019 · US
US-2019226482-A1 · Jul 25, 2019 · US
US-2018223845-A1 · Aug 9, 2018 · US
US-2017306961-A1 · Oct 26, 2017 · US
US-2017218956-A1 · Aug 3, 2017 · US