C07C 57/22
Acetylene dicarboxylic acid
C07C57/22 (Acetylene dicarboxylic acid) appears on 6 US grants and 1 published applications in this corpus.
Search patents in C07C- Granted patents
- 6
- Published applications
- 1
- Assignees
- 3
- Inventors
- 10
- Latest grant
- 10 Feb 1987
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 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 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Unsaturated eicosanoic acids10 Feb 1987US 4,642,364 AHoffmann-La Roche Inc.
- Heat-developable light-sensitive materials29 Jul 1986US 4,603,103 AFuji Photo Film Co., Ltd.
- Unsaturated eicosanoic acids8 Jul 1986US 4,599,443 AHoffmann-La Roche Inc.
- Base precursor for heat-developable photosensitive material24 Dec 1985US 4,560,763 AFuji Photo Film Co., Ltd.
- Unsaturated eicosanoic acids19 Feb 1985US 4,500,462 AHoffmann-La Roche Inc.
Most cited
By later US patents
- Base precursor for heat-developable photosensitive material10US 4,560,763 AFuji Photo Film Co., Ltd. · 1985
- Heat-developable light-sensitive materials10US 4,603,103 AFuji Photo Film Co., Ltd. · 1986
- Unsaturated eicosanoic acids8US 4,642,364 AHoffmann-La Roche Inc. · 1987
- Unsaturated eicosanoic acids5US 4,345,084 AHoffmann-La Roche Inc. · 1982
- Unsaturated eicosanoic acids3US 4,599,443 AHoffmann-La Roche Inc. · 1986