B01J 2229/16
To increase the si/al ratio
Official title: to increase the Si/Al ratio; Dealumination
B01J2229/16 (To increase the si/al ratio) appears on 435 US grants and 313 published applications in this corpus.
Search patents in B01J- Granted patents
- 435
- Published applications
- 313
- Assignees
- 171
- Inventors
- 937
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 6 | 0 |
| 1988 | 7 | 0 |
| 1989 | 11 | 0 |
| 1990 | 12 | 0 |
| 1991 | 16 | 0 |
| 1992 | 12 | 0 |
| 1993 | 13 | 0 |
| 1994 | 7 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 8 | 0 |
| 1999 | 21 | 0 |
| 2000 | 18 | 0 |
| 2001 | 9 | 1 |
| 2002 | 4 | 5 |
| 2003 | 12 | 8 |
| 2004 | 6 | 15 |
| 2005 | 10 | 5 |
| 2006 | 7 | 7 |
| 2007 | 4 | 4 |
| 2008 | 4 | 7 |
| 2009 | 4 | 3 |
| 2010 | 6 | 14 |
| 2011 | 4 | 19 |
| 2012 | 2 | 14 |
| 2013 | 8 | 22 |
| 2014 | 7 | 12 |
| 2015 | 21 | 21 |
| 2016 | 9 | 16 |
| 2017 | 28 | 12 |
| 2018 | 19 | 14 |
| 2019 | 20 | 22 |
| 2020 | 21 | 21 |
| 2021 | 26 | 22 |
| 2022 | 14 | 15 |
| 2023 | 7 | 4 |
| 2024 | 12 | 17 |
| 2025 | 4 | 7 |
| 2026 | 8 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Modified zeolite catalyst compositions and methods of use23 Jun 2026US 12,661,643 B2W. R. Grace & Co.-Conn.
- Molecular sieve SSZ-93, catalyst, and methods of use thereof28 Apr 2026US 12,611,658 B2Chevron U.S.A.Inc.
- Dewaxing catalysts and processes using the same21 Apr 2026US 12,606,752 B2ExxonMobil Technology and Engineering Company
- Methods of preparing cracking catalyst with alumina binder and phosphoric acid31 Mar 2026US 12,590,044 B2Saudi Arabian Oil Company
- Method for preparing a hydrocarbon adsorption catalyst, a hydrocarbon adsorption catalyst prepared thereby, and a hydrocarbon trap comprising the same17 Mar 2026US 12,576,398 B2Hyundai Motor Company
- Hydrothermal treatment method of mww type zeolite supports and manufacturing method of mo-based methane dehydroaromatization catalysts using mww type zeolite supports dealuminated by hydrothermal treatment13 Aug 2026US 2026/0233210 A1Korea University Research and Business Foundation
- Dewaxing catalysts and processes using the same16 Jul 2026US 2026/0201256 A1ExxonMobil Technology and Engineering Company
- Methods for making nano-sized mesoporous zeolite beta that utilize acid treatments9 Jul 2026US 2026/0192291 A1Saudi Arabian Oil Company
- Modified Zeolite Catalyst Compositions and Methods of Use2 Jul 2026US 2026/0183760 A1W. R. Grace & Co.-Conn.
- Molecular sieve ssz-124, its synthesis and use4 Jun 2026US 2026/0152405 A1Chevron U.S.A.Inc.
Most cited
By later US patents
- Silicon substituted zeolite compositions and process for preparing same174US 4,503,023 AUnion Carbide Corporation · 1985
- Catalyst comprising a hydrogenation metal and a delaminated layered silicate92US 5,137,861 AMobil Oil Corporation · 1992
- Selective para-xylene production by toluene methylation78US 6,504,072 B1ExxonMobil Oil Corporation · 2003
- Selective para-xylene production by toluene methylation75US 6,423,879 B1ExxonMobil Oil Corporation · 2002
- Olefin oligomerization with surface modified zeolite catalyst63US 5,026,933 AMobil Oil Corporation · 1991