Rotary screw compressors utilizing viscous damping for vibration reduction
US-9856876-B2 · Jan 2, 2018 · US
of other than internal-axis type · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F04C18/28 |
| Official title | of other than internal-axis type |
| Display label | of other than internal-axis type |
| Total patents | 4 |
Year-over-year patent counts classified under this CPC code.
Filing activity appears stable based on the most recent years.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-9856876-B2 · Jan 2, 2018 · US
US-9816553-B2 · Nov 14, 2017 · US
US-2016040670-A1 · Feb 11, 2016 · US
US-2015118092-A1 · Apr 30, 2015 · US