F04C 2210/225
Nitrogen
Official title: Nitrogen (N2)
F04C2210/225 (Nitrogen) appears on 3 US grants and 6 published applications in this corpus.
Search patents in F04C- Granted patents
- 3
- Published applications
- 6
- Assignees
- 3
- Inventors
- 7
- Latest grant
- 28 Feb 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2017 | 0 | 3 |
| 2018 | 0 | 1 |
| 2019 | 2 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
By publication year.
Recent patents
- Dry pump and exhaust gas treatment method28 Feb 2023US 11,592,025 B2Edwards Japan Limited
- Pumping method in a system of vacuum pumps and system of vacuum pumps16 Apr 2019US 10,260,502 B2Ateliers Busch SA
- Method for compression of ammonia synthesis gas and recycle gas for the production of ammonia by screw compressors5 Feb 2019US 10,196,277 B2
- Nitrogen driven dc generator28 Jul 2022US 2022/0235661 A1Air Liquide Large Industries U.S. LP
- Method and apparatus for compression of ammonia synthesis gas and recycle gas for the production of ammonia by screw compressors18 Apr 2019US 2019/0112197 A1
- Method for compression of ammonia synthesis gas and recycle gas for the production of ammonia by screw compressors5 Apr 2018US 2018/0093898 A1
- Dry pump and exhaust gas treatment method20 Jul 2017US 2017/0204860 A1Edwards Japan Limited
- Compression of ammonia synthesis and recycle gas6 Jul 2017US 2017/0190590 A1
Most cited
By later US patents
No patent in this class has been cited by a later US patent yet.