C07C 4/20
Hydrogen being formed in situ
Official title: Hydrogen being formed in situ, e.g. from steam
C07C4/20 (Hydrogen being formed in situ) appears on 24 US grants and 9 published applications in this corpus.
Search patents in C07C- Granted patents
- 24
- Published applications
- 9
- Assignees
- 10
- Inventors
- 65
- Latest grant
- 21 Feb 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 5 | 0 |
| 1980 | 7 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 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 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 5 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 2 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Methods for operating acetylene hydrogenation units in olefin production processes21 Feb 2023US 11,584,700 B2Dow Global Technologies LLC
- Method and system for producing benzene31 Aug 2021US 11,104,624 B2Linde Aktiengesellschaft
- Process and system for the production of para-xylene and benzene from streams rich in C6 to C12+ aromatics10 Dec 2019US 10,501,389 B1Saudi Arabian Oil Company
- Method for regeneration of rhodium-containing catalyst16 Aug 1983US 4,399,051 A
- Catalysts for water dealkylation of aromatic hydrocarbons19 Jan 1982US 4,311,614 AElf Union
- Methods for operating acetylene hydrogenation units in olefin production processes5 May 2022US 2022/0135498 A1Dow Global Technologies LLC
- Method and system for producing benzene5 Dec 2019US 2019/0367430 A1Linde Aktiengesellschaft
- Process for conversion of hydrocarbon feed to c2 unsaturated hydrocarbons and syngas composition used for multiple applications1 Aug 2019US 2019/0233350 A1Sabic Global Technologies B.V.
- Process for preparing at least one low molecular weight aromatic material of value from a lignin-comprising starting material10 Nov 2011US 2011/0275868 A1BASF SE
- Method and apparatus for steam dealkylation in a plant for the catalytic splitting of hydrocarbons25 Sep 2008US 2008/0230443 A1Linde Aktiengesellschaft
Most cited
By later US patents
- Novel catalyst and its use for steam hydroconversion and dealkylation processes37US 4,013,734 AExxon Research & Engineering Co. · 1977
- Process for the steam dealkylation of aromatic hydrocarbons17US 4,207,169 AInstitut Francais du Petrole · 1980
- Catalysts for water dealkylation of aromatic hydrocarbons17US 4,233,186 AElf Union · 1980
- Steam dealkylation process15US 4,310,715 ATexaco Inc. · 1982
- Process for steam-dealkylating alkylaromatic hydrocarbons11US 4,199,436 AInstitut Francais du Petrole · 1980