B01J 38/66
Using ammonia or derivatives thereof
Official title: using ammonia or derivatives thereof
B01J38/66 (Using ammonia or derivatives thereof) appears on 77 US grants and 65 published applications in this corpus.
Search patents in B01J- Granted patents
- 77
- Published applications
- 65
- Assignees
- 45
- Inventors
- 203
- Latest grant
- 29 Oct 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 6 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 2 |
| 2002 | 2 | 2 |
| 2003 | 1 | 7 |
| 2004 | 4 | 0 |
| 2005 | 4 | 4 |
| 2006 | 1 | 0 |
| 2007 | 1 | 2 |
| 2008 | 0 | 5 |
| 2009 | 2 | 3 |
| 2010 | 4 | 2 |
| 2011 | 0 | 3 |
| 2012 | 1 | 4 |
| 2013 | 4 | 1 |
| 2014 | 3 | 2 |
| 2015 | 2 | 4 |
| 2016 | 3 | 2 |
| 2017 | 3 | 2 |
| 2018 | 2 | 8 |
| 2019 | 4 | 4 |
| 2020 | 7 | 2 |
| 2021 | 3 | 1 |
| 2022 | 1 | 2 |
| 2023 | 0 | 1 |
| 2024 | 3 | 0 |
| 2025 | 0 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Denitration catalyst regeneration method and denitration catalyst regeneration system29 Oct 2024US 12,128,393 B2Mitsubishi Heavy Industries, Ltd.
- Honeycomb bodies with improved skin CTE and isostatic strength and methods of making the same6 Feb 2024US 11,890,609 B2Corning Incorporated
- Method and apparatus for regenerating deactivated denitration catalyst30 Jan 2024US 11,883,812 B2Taiwan Power Company
- Method for activating hydrotreating catalysts31 May 2022US 11,344,866 B2Arkema France
- Process for recovery and regeneration of deactivated catalysts used in dialkyl carbonate synthesis7 Sep 2021US 11,110,449 B2Council of Scientific and Industrial Research
- Method for Catalyst Recovery from Carbon Nanotubes and Use of Recycled Catalyst for CNT Production thereof3 Jul 2025US 2025/0214075 A1Indian Oil Corporation Limited
- Reactivation of a hydrogenation catalyst23 Jan 2025US 2025/0025867 A1Arkema France
- Method for activating a catalytically active material2 Feb 2023US 2023/0032459 A1Topsoe A/S
- Denitration catalyst regeneration method and denitration catalyst regeneration system19 May 2022US 2022/0152603 A1Mitsubishi Power, Ltd.
- Method and apparatus for regenerating deactivated denitration catalyst17 Mar 2022US 2022/0080401 A1Taiwan Power Company
Most cited
By later US patents
- Redispersion of noble metals on supported catalysts61US 4,148,750 AExxon Research & Engineering Co. · 1979
- Process for reactivating a deactivated dehydrocyclodimerization catalyst with water35US 6,395,664 B1Uop LLC · 2002
- Reactivation of noble metal-zeolite catalysts28US 4,678,764 AMobil Oil Corporation · 1987
- Regeneration of spent supported metal catalysts23US 6,908,873 B2Headwaters Nanokinetix, Inc. · 2005
- Method of restoring catalytic activity to a spent hydrotreating catalyst, the resulting restored catalyst, and a method of hydroprocessing22US 7,820,579 B2Shell Oil Company · 2010