B01J 2229/38
Base treatment
B01J2229/38 (Base treatment) appears on 184 US grants and 205 published applications in this corpus.
Search patents in B01J- Granted patents
- 184
- Published applications
- 205
- Assignees
- 114
- Inventors
- 528
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 2 | 4 |
| 2007 | 1 | 1 |
| 2008 | 0 | 5 |
| 2009 | 3 | 1 |
| 2010 | 2 | 3 |
| 2011 | 0 | 6 |
| 2012 | 1 | 12 |
| 2013 | 2 | 9 |
| 2014 | 10 | 14 |
| 2015 | 8 | 12 |
| 2016 | 6 | 11 |
| 2017 | 17 | 12 |
| 2018 | 16 | 21 |
| 2019 | 19 | 13 |
| 2020 | 17 | 20 |
| 2021 | 15 | 14 |
| 2022 | 9 | 13 |
| 2023 | 14 | 14 |
| 2024 | 16 | 5 |
| 2025 | 5 | 7 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Zn-metal oxide/zeolite catalyst and methods of making thereof8 Sep 2026US 12,728,410 B2The Regents of the University of California
- Method for preparing a zeolite-based catalyst having an mfi structural code with improved density and mechanical strength30 Jun 2026US 12,667,830 B2Ifp Energies Nouvelles
- Mesoporous zeolites and uses thereof in dewaxing hydrocarbon feeds28 Apr 2026US 12,611,659 B2Zeopore Technologies NV
- Methods for producing ethylene and propylene from naphtha5 Aug 2025US RE50,515 E1Sabic Global Technologies B.V.
- Method for generating new faujasite zeolites15 Jul 2025US 12,358,801 B2Zeopore Technologies NV
- Ferrierite (fer)-type zeolites and the uses thereof30 Jul 2026US 2026/0216711 A1Braskem America, Inc.
- Production of metal ion-exchaned molecular sieve18 Jun 2026US 2026/0166534 A1Johnson Matthey Public Limited Company
- Hydrocracking Composite Catalysts Based on Zeolite and Amorphous Silica-Alumina5 Mar 2026US 2026/0061407 A1Saudi Arabian Oil Company
- Method for the production of a pyrolysis oil from end-of-life plastics8 Jan 2026US 2026/0008961 A1Plastic Energy Limited
- Controlled alkaline treatments on molecular sieves4 Dec 2025US 2025/0367646 A1Katholieke Universiteit Leuven
Most cited
By later US patents
- Olefin oligomerization with surface modified zeolite catalyst63US 5,026,933 AMobil Oil Corporation · 1991
- Olefin oligomerization with surface modified zeolite catalyst53US 4,870,038 AMobil Oil Corporation · 1989
- Octane gasoline catalyst and process using same in a hydrocracking process44US 5,160,033 AUop LLC · 1992
- Novel zeolite compositions derived from zeolite Y43US 5,013,699 AUop LLC · 1991
- Octane gasoline catalyst39US 5,208,197 AUop LLC · 1993