C07C 67/29
By introduction of oxygen-containing functional groups
Official title: by introduction of oxygen-containing functional groups
C07C67/29 (By introduction of oxygen-containing functional groups) appears on 139 US grants and 133 published applications in this corpus.
Search patents in C07C- Granted patents
- 139
- Published applications
- 133
- Assignees
- 123
- Inventors
- 462
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 6 | 1 |
| 2002 | 3 | 7 |
| 2003 | 3 | 4 |
| 2004 | 0 | 3 |
| 2005 | 3 | 5 |
| 2006 | 3 | 5 |
| 2007 | 3 | 4 |
| 2008 | 3 | 2 |
| 2009 | 3 | 6 |
| 2010 | 2 | 8 |
| 2011 | 3 | 2 |
| 2012 | 1 | 9 |
| 2013 | 3 | 7 |
| 2014 | 3 | 8 |
| 2015 | 12 | 9 |
| 2016 | 8 | 7 |
| 2017 | 4 | 4 |
| 2018 | 5 | 5 |
| 2019 | 4 | 4 |
| 2020 | 6 | 5 |
| 2021 | 3 | 7 |
| 2022 | 2 | 2 |
| 2023 | 1 | 3 |
| 2024 | 2 | 7 |
| 2025 | 3 | 7 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Method and apparatus for secure transmission of video signals73US 5,555,305 ABritish Broadcasting Corporation · 1996
- Hydroxy group containing diesters of acrylic acid37US 4,002,669 AKulzer GmbH · 1977
- Adamantane derivatives and process for producing them24US 6,392,104 B1Daicel Chemical Industries, Ltd. · 2002
- Transvinylation reaction18US 4,981,973 AUnion Carbide Chemicals and Plastics Company Inc. · 1991
- Preparation of vinyl ether terminated polyesters17US 5,286,835 AAllied-Signal Inc. · 1994