C07C 51/567
By reactions not involving carboxylic acid anhydride groups
Official title: by reactions not involving carboxylic acid anhydride groups
C07C51/567 (By reactions not involving carboxylic acid anhydride groups) appears on 136 US grants and 17 published applications in this corpus.
Search patents in C07C- Granted patents
- 136
- Published applications
- 17
- Assignees
- 57
- Inventors
- 218
- Latest grant
- 25 May 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 4 | 0 |
| 1978 | 9 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 6 | 0 |
| 1983 | 5 | 0 |
| 1984 | 5 | 0 |
| 1985 | 7 | 0 |
| 1986 | 12 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 9 | 0 |
| 1990 | 9 | 0 |
| 1991 | 7 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 0 |
| 2003 | 3 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 2 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 2 |
| 2015 | 2 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 1 | 2 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Composition, method and use25 May 2021US 11,015,137 B2Innospec Limited
- Method and apparatus for producing a chemical compound and the produced chemical compound15 Oct 2019US 10,442,998 B2Teknologian tutkimuskeskus VTT Oy
- Norbornene monomer, polynorbornene derivative, liquid crystal photoalignment film containing the same and liquid crystal display containing the same6 Oct 2015US 9,151,989 B2LG Chem.Ltd.
- Norbornene monomer, polynorbornene derivative, liquid crystal photoalignment film containing the same and liquid crystal display containing the same29 Sep 2015US 9,146,427 B2LG Chem.Ltd.
- Norbornene monomer, polynorbornene derivative, liquid crystal photoalignment film containing the same and liquid crystal display containing the same13 May 2014US 8,722,157 B2LG Chem.Ltd.
- Composition, method and use6 Feb 2020US 2020/0040270 A1Innospec Limited
- Method and apparatus for producing a chemical compound and the produced chemical compound6 Jun 2019US 2019/0169507 A2Teknologian tutkimuskeskus VTT Oy
- Method and apparatus for producing a chemical compound and the produced chemical compound31 Jan 2019US 2019/0031962 A2Teknologian tutkimuskeskus VTT Oy
- Processes and Systems for the Conversion of Acyclic Hydrocarbons8 Nov 2018US 2018/0319717 A1
- Method and apparatus for producing a chemical compound and the produced chemical compound28 Jun 2018US 2018/0179449 A1Teknologian tutkimuskeskus VTT Oy
Most cited
By later US patents
- Ashless dispersants formed from substituted acylating agents and their production and use115US 5,241,003 AEthyl Petroleum Additives, Inc. · 1993
- Ashless dispersants formed from substituted acylating agents and their production and use82US 5,137,980 AEthyl Petroleum Additives, Inc. · 1992
- Two-step method for the alkenylation of maleic anhydride and related compounds78US 4,110,349 AThe Lubrizol Corporation · 1978
- Process for production of polyisobutenylsuccinic anhydrides without formation of resins46US 5,739,355 AInstitut Francais du Petrole · 1998
- Substituted acylating agents and their production34US 5,071,919 AEthyl Petroleum Additives, Inc. · 1991