C07C 5/32
Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
Official title: by dehydrogenation with formation of free hydrogen
C07C5/32 (Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms) appears on 1,799 US grants and 1,388 published applications in this corpus.
Search patents in C07C- Granted patents
- 1,799
- Published applications
- 1,388
- Assignees
- 502
- Inventors
- 3,179
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 22 | 0 |
| 1977 | 43 | 0 |
| 1978 | 36 | 0 |
| 1979 | 35 | 0 |
| 1980 | 26 | 0 |
| 1981 | 17 | 0 |
| 1982 | 19 | 0 |
| 1983 | 30 | 0 |
| 1984 | 24 | 0 |
| 1985 | 33 | 0 |
| 1986 | 27 | 0 |
| 1987 | 34 | 0 |
| 1988 | 38 | 0 |
| 1989 | 39 | 0 |
| 1990 | 41 | 0 |
| 1991 | 34 | 0 |
| 1992 | 25 | 0 |
| 1993 | 33 | 0 |
| 1994 | 37 | 0 |
| 1995 | 39 | 0 |
| 1996 | 25 | 0 |
| 1997 | 27 | 0 |
| 1998 | 20 | 0 |
| 1999 | 24 | 0 |
| 2000 | 36 | 0 |
| 2001 | 26 | 4 |
| 2002 | 21 | 25 |
| 2003 | 16 | 18 |
| 2004 | 14 | 27 |
| 2005 | 12 | 21 |
| 2006 | 20 | 24 |
| 2007 | 14 | 25 |
| 2008 | 13 | 36 |
| 2009 | 20 | 31 |
| 2010 | 28 | 39 |
| 2011 | 19 | 45 |
| 2012 | 17 | 43 |
| 2013 | 26 | 57 |
| 2014 | 44 | 63 |
| 2015 | 55 | 92 |
| 2016 | 57 | 63 |
| 2017 | 67 | 86 |
| 2018 | 70 | 90 |
| 2019 | 82 | 93 |
| 2020 | 84 | 82 |
| 2021 | 71 | 101 |
| 2022 | 75 | 71 |
| 2023 | 63 | 59 |
| 2024 | 36 | 83 |
| 2025 | 43 | 57 |
| 2026 | 42 | 53 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Catalyst compositions and processes for making and using same6 Oct 2026US 12,752,258 B2ExxonMobil Chemical Patents Inc.
- Systems and methods for producing olefins6 Oct 2026US 12,753,132 B2Dow Global Technologies LLC
- Ethane activation systems including a composite media and related reactor apparatuses22 Sep 2026US 12,741,274 B2Battelle Energy Alliance, LLC
- Method for manufacturing alpha-methylstyrene22 Sep 2026US 12,741,917 B2LG Chem.Ltd.
- Producing ethylene by oxidatively dehydrogenating ethane15 Sep 2026US 12,735,372 B2Linde Aktiengesellschaft
- Naphtha to ethane and propane unit with hydrogen slip8 Oct 2026US 2026/0308086 A1Uop LLC
- Catalysts suitable for making light olefins by dehydrogenation that include chromium24 Sep 2026US 2026/0284641 A1Dow Global Technologies LLC
- Spherical alumina and supported catalyst, and preparation methods and use thereof17 Sep 2026US 2026/0273511 A1Dalian University of Technology
- Methods for making light olefins by dehydrogenation using catalysts that include manganese17 Sep 2026US 2026/0274771 A1Dow Global Technologies LLC
- Method for upgrading bio-based material and upgraded material10 Sep 2026US 2026/0265614 A1Neste Oyj
Most cited
By later US patents
- Crystalline silicoaluminophosphates925US 4,440,871 AUnion Carbide Corporation · 1984
- Titanium-containing molecular sieves201US 4,500,651 AUnion Carbide Corporation · 1985
- Composite hydrogen separation element and module185US 5,498,278 ABend Research, Inc. · 1996
- Composite hydrogen separation element and module164US 5,645,626 ABend Research, Inc. · 1997
- Method of dehydrocyclizing aliphatic hydrocarbons149US 4,104,320 AElf Union · 1978