C07C 2529/04
Catalysts comprising molecular sieves: having base-exchange properties
Official title: having base-exchange properties, e.g. crystalline zeolites, pillared clays
C07C2529/04 (Catalysts comprising molecular sieves: having base-exchange properties) appears on 3,492 US grants and 2,558 published applications in this corpus.
Search patents in C07C- Granted patents
- 3,492
- Published applications
- 2,558
- Assignees
- 653
- Inventors
- 4,942
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 17 | 0 |
| 1977 | 42 | 0 |
| 1978 | 60 | 0 |
| 1979 | 34 | 0 |
| 1980 | 36 | 0 |
| 1981 | 52 | 0 |
| 1982 | 29 | 0 |
| 1983 | 61 | 0 |
| 1984 | 63 | 0 |
| 1985 | 78 | 0 |
| 1986 | 49 | 0 |
| 1987 | 69 | 0 |
| 1988 | 69 | 0 |
| 1989 | 63 | 0 |
| 1990 | 66 | 0 |
| 1991 | 95 | 0 |
| 1992 | 59 | 0 |
| 1993 | 57 | 0 |
| 1994 | 40 | 0 |
| 1995 | 47 | 0 |
| 1996 | 39 | 0 |
| 1997 | 42 | 0 |
| 1998 | 56 | 0 |
| 1999 | 78 | 0 |
| 2000 | 80 | 0 |
| 2001 | 41 | 12 |
| 2002 | 51 | 34 |
| 2003 | 53 | 52 |
| 2004 | 32 | 57 |
| 2005 | 44 | 76 |
| 2006 | 44 | 38 |
| 2007 | 53 | 53 |
| 2008 | 57 | 93 |
| 2009 | 54 | 57 |
| 2010 | 58 | 109 |
| 2011 | 75 | 151 |
| 2012 | 66 | 110 |
| 2013 | 83 | 152 |
| 2014 | 125 | 163 |
| 2015 | 129 | 185 |
| 2016 | 118 | 156 |
| 2017 | 147 | 133 |
| 2018 | 145 | 132 |
| 2019 | 157 | 156 |
| 2020 | 124 | 126 |
| 2021 | 120 | 119 |
| 2022 | 102 | 94 |
| 2023 | 80 | 80 |
| 2024 | 64 | 102 |
| 2025 | 45 | 68 |
| 2026 | 44 | 50 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Catalyst for light olefins production and a process of light olefins production by using a catalyst thereof6 Oct 2026US 12,752,263 B2PTT Global Chemical Public Company Limited
- Composite catalyst, method for producing composite catalyst, and method for producing lower olefins29 Sep 2026US 12,746,536 B2Chiyoda Corporation
- Oligomerization with ion-exchanged zeolites29 Sep 2026US 12,747,195 B2Exxonmoil Technology and Engineering Company
- Systems and methods for processing gas streams29 Sep 2026US 12,747,196 B2University of Notre Dame du Lac
- Ethane activation systems including a composite media and related reactor apparatuses22 Sep 2026US 12,741,274 B2Battelle Energy Alliance, LLC
- Catalysts for light olefin oligomerization24 Sep 2026US 2026/0285783 A1ExxonMobil Technology and Engineering Company
- Methods and apparatuses for processing hydrocarbons to produce light olefins24 Sep 2026US 2026/0285784 A1King Abdullah University of Science and Technology
- Production of P-Xylene by Liquid-Phase Isomerization in the Presence of C9+ Aromatic Hydrocarbons and Separation Thereof27 Aug 2026US 2026/0250219 A1
- Sorption-Enhanced Conversion of Oxygenates to Hydrocarbons20 Aug 2026US 2026/0242671 A1Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
- Method for preparing aromatic hydrocarbons by means of coupling conversion of co and polyolefin6 Aug 2026US 2026/0225972 A1Dalian Institute of Chemical Physics, Chinese Academy of Sciences
Most cited
By later US patents
- Composition of synthetic porous crystalline material, its synthesis and use352US 4,954,325 AMobil Oil Corporation · 1990
- Crystalline zeolite ZSM-23 and synthesis thereof332US 4,076,842 AMobil Oil Corporation · 1978
- Crystalline aluminosilicate PSH-3 and its process of preparation322US 4,439,409 ABayer Aktiengesellschaft · 1984
- Method of power generation via coal gasification and liquid hydrocarbon synthesis315US 3,986,349 AChevron Research Company · 1976
- Crystalline zeolite and method of preparing same308US 4,016,245 AMobil Oil Corporation · 1977