C07C 15/08
Xylenes
C07C15/08 (Xylenes) appears on 236 US grants and 204 published applications in this corpus.
Search patents in C07C- Granted patents
- 236
- Published applications
- 204
- Assignees
- 76
- Inventors
- 537
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 5 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 6 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 5 | 11 |
| 2003 | 8 | 2 |
| 2004 | 3 | 5 |
| 2005 | 3 | 2 |
| 2006 | 2 | 1 |
| 2007 | 9 | 2 |
| 2008 | 4 | 7 |
| 2009 | 4 | 3 |
| 2010 | 1 | 11 |
| 2011 | 6 | 6 |
| 2012 | 4 | 4 |
| 2013 | 10 | 9 |
| 2014 | 7 | 4 |
| 2015 | 7 | 4 |
| 2016 | 1 | 4 |
| 2017 | 2 | 6 |
| 2018 | 10 | 27 |
| 2019 | 22 | 28 |
| 2020 | 19 | 30 |
| 2021 | 27 | 22 |
| 2022 | 19 | 2 |
| 2023 | 4 | 7 |
| 2024 | 7 | 5 |
| 2025 | 1 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Zeolitic adsorbent for the separation of hydrocarbon isomers28 Apr 2026US 12,611,647 B2Arkema France
- Method for preparing p-xylene27 Jan 2026US 12,534,423 B2Dalian Institute of Chemical Physics, Chinese Academy of Sciences
- Processes for producing high-octane-number fuel component15 Jul 2025US 12,358,857 B2ExxonMobil Chemicals Patents Inc.
- Modified graphene, method of producing modified graphene, modified graphene-resin composite, modified graphene sheet, and modified graphene dispersion6 Aug 2024US 12,054,617 B2Canon Kabushiki Kaisha
- Method for producing light aromatic6 Aug 2024US 12,054,680 B2China Petroleum & Chemical Corporation
- Alkylbenzene-containing desorbent and its use for adsorption-separation of meta-aromatic hydrocarbon(s)15 Jan 2026US 2026/0014543 A1China Petroleum & Chemical Corporation
- Catalyst for producing c8 aromatic hydrocarbon having reduced ethylbenzene content and preparation method thereof8 May 2025US 2025/0144605 A1SK Innovation Co., Ltd.
- Depolymerization of polyurethanes for circular economy plastics5 Dec 2024US 2024/0400786 A1International Business Machines Corporation
- Methods of converting toluene to benzene and xylene using mesoporous mordenite24 Oct 2024US 2024/0351010 A1Saudi Arabian Oil Company
- Single-step catalytic process for the production of alkylated aromatics using co226 Sep 2024US 2024/0317656 A1Council of Scientific and Industrial Research
Most cited
By later US patents
- Process for converting hydrocarbon feed to high purity benzene and high purity paraxylene93US 6,004,452 AChevron Chemical Company · 1999
- Normal paraffin hydrocarbon isomerization process using activated zeolite beta55US 5,095,169 AUop LLC · 1992
- Process and apparatus for the separation of p-xylene in C.sub.8 aromatic hydrocarbons with a simulated moving bed absorption and a crystallization49US 5,284,992 AInstitut Francais du Petrole · 1994
- Multi-zone process for the production of diesel and aromatic compounds49US 7,271,303 B1Uop LLC · 2007
- Process for producing chemicals from oxygenate45US 6,506,954 B1Exxon Mobil Chemical Patents Inc. · 2003