Method for liquefying ammonia
US-11359858-B2 · Jun 14, 2022 · US
characterised by the fluid to be liquefied · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F25J1/0002 |
| Official title | {characterised by the fluid to be liquefied} |
| Display label | characterised by the fluid to be liquefied |
| Total patents | 13 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 1 |
| 2021 | 1 |
| 2022 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-11359858-B2 · Jun 14, 2022 · US
US-2021199376-A1 · Jul 1, 2021 · US
US-2018306519-A1 · Oct 25, 2018 · US
US-9789433-B2 · Oct 17, 2017 · US
US-9757677-B2 · Sep 12, 2017 · US
US-9328008-B2 · May 3, 2016 · US
US-9222726-B2 · Dec 29, 2015 · US
US-9212849-B2 · Dec 15, 2015 · US
US-9205364-B2 · Dec 8, 2015 · US
US-9192887-B2 · Nov 24, 2015 · US
US-9138675-B2 · Sep 22, 2015 · US
US-2015128642-A1 · May 14, 2015 · US
US-8926936-B2 · Jan 6, 2015 · US