C01B 21/206
Nitric anhydride
Official title: {Nitric anhydride (N2O5) (C01B21/203 takes precedence)}
C01B21/206 (Nitric anhydride) appears on 3 US grants and 1 published applications in this corpus.
Search patents in C01B- Granted patents
- 3
- Published applications
- 1
- Assignees
- 3
- Inventors
- 7
- Latest grant
- 7 Jun 1994
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Process for preparing dinitrogen pentoxide7 Jun 1994US 5,318,763 AThe Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
- Method of extracting dinitrogen pentoxide from its mixture with nitric acid30 Nov 1993US 5,266,292 ASecretary of State for Defence in the United Kingdom
- Method of separating electrochemically produced dinitrogen pentoxide from its solution in nitric acid7 Jul 1992US 5,128,001 AThe Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
Most cited
By later US patents
- Method of extracting dinitrogen pentoxide from its mixture with nitric acid4US 5,266,292 ASecretary of State for Defence in the United Kingdom · 1993
- Process for preparing dinitrogen pentoxide2US 5,318,763 AThe Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland · 1994
- Method of separating electrochemically produced dinitrogen pentoxide from its solution in nitric acid1US 5,128,001 AThe Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland · 1992