C08G 18/3874
Containing heterocyclic rings having at least one sulfur atom in the ring
Official title: {containing heterocyclic rings having at least one sulfur atom in the ring}
C08G18/3874 (Containing heterocyclic rings having at least one sulfur atom in the ring) appears on 38 US grants and 29 published applications in this corpus.
Search patents in C08G- Granted patents
- 38
- Published applications
- 29
- Assignees
- 22
- Inventors
- 106
- Latest grant
- 19 Sep 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 2 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 3 |
| 2016 | 4 | 1 |
| 2017 | 0 | 4 |
| 2018 | 3 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 1 |
| 2021 | 1 | 3 |
| 2022 | 1 | 1 |
| 2023 | 2 | 1 |
| 2024 | 0 | 3 |
| 2025 | 0 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Xanthene derivative compound having high refractive index and (co)polymer comprising same13 Jun 2024US 2024/0190836 A1Research & Business Foundation Sungkyunkwan University
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Most cited
By later US patents
- Composition for a resin38US 6,130,307 AMitsubishi Gas Chemical Company, Inc. · 2000
- Light-absorbing polyurethane compositions and thermoplastic polymers colored therewith34US 5,194,463 AEastman Kodak Company · 1993
- Resin having a large refractive index, lenses comprising the resin and process for preparing the lens18US 5,084,545 AMitsui Toatsu Chemicals, Inc. · 1992
- Heterocyclic thione functional polyurethane polymers and their use in magnetic recording media15US 5,081,213 AMinnesota Mining and Manufacturing Company · 1992
- Polymer for optical products and process for preparation thereof14US 5,294,666 AHoya Corporation · 1994