B01J 27/25
Nitrates
B01J27/25 (Nitrates) appears on 87 US grants and 87 published applications in this corpus.
Search patents in B01J- Granted patents
- 87
- Published applications
- 87
- Assignees
- 72
- Inventors
- 264
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 1 |
| 2012 | 1 | 3 |
| 2013 | 2 | 13 |
| 2014 | 2 | 5 |
| 2015 | 5 | 7 |
| 2016 | 5 | 4 |
| 2017 | 9 | 7 |
| 2018 | 7 | 7 |
| 2019 | 7 | 4 |
| 2020 | 3 | 6 |
| 2021 | 5 | 6 |
| 2022 | 1 | 4 |
| 2023 | 3 | 5 |
| 2024 | 11 | 6 |
| 2025 | 3 | 2 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Copper hydroxide nitrate/calcium silicate/graphitic carbon nitride nanocomposite material based absorbent for wastewater treatment10 Mar 2026US 12,570,547 B1Imam Mohammad Ibn Saud Islamic University
- Method for preparing a steam reforming catalyst, catalyst and related use10 Feb 2026US 12,544,746 B2Petroleo Brasileiro S.A. - Petrobras
- Spray pyrolysis system and method for manufacture of mixed metal oxide compositions13 Jan 2026US 12,522,500 B2Pyrochem Catalyst Company
- Low-temperature denitration catalyst4 Nov 2025US 12,458,924 B2Commonwealth Scientific and Industrial Research Organisation
- Method for hydrogen generation using nanocomposite28 Oct 2025US 12,453,964 B1Imam Mohammad Ibn Saud Islamic University
- Catalyst for decomposing perfluorocompounds27 Aug 2026US 2026/0249272 A1Ecoprohn
- Modified aluminoborates having increased surface area and methods of making25 Jun 2026US 2026/0175198 A1Uop LLC
- Modified aluminoborate having increased surface area and methods of making25 Jun 2026US 2026/0175199 A1Uop LLC
- Catalyst for decomposing non-degradable pollutants and non-degradable pollutant decomposition system including the catalyst19 Jun 2025US 2025/0197259 A1University-Industry Cooperation Group of Kyung Hee University
- Method of deoxygenation of a hydrocarbon in the presence of methane-containing gas environment and catalyst structure6 Feb 2025US 2025/0042826 A1Kara Technologies Inc.
Most cited
By later US patents
- Catalytic system for epoxidation of alkenes45US 4,994,589 AUnion Carbide Chemicals and Plastics Company Inc. · 1991
- Catalysts for natural gas processes42US 9,751,079 B2Silura Technologies, Inc. · 2017
- Catalysts for natural gas processes33US 10,300,465 B2Siluria Technologies, Inc. · 2019
- Method of removing ozone and composition therefor16US 4,421,533 ATakeda Chemical Industries, Ltd. · 1983
- Process for producing taurine from alkali taurinates15US 9,598,357 B1Vitaworks IP, LLC · 2017