C08G 64/1691
Unsaturated
Official title: {unsaturated}
C08G64/1691 (Unsaturated) appears on 32 US grants and 39 published applications in this corpus.
Search patents in C08G- Granted patents
- 32
- Published applications
- 39
- Assignees
- 17
- Inventors
- 84
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 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 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 2 |
| 2013 | 0 | 0 |
| 2014 | 1 | 3 |
| 2015 | 3 | 0 |
| 2016 | 0 | 9 |
| 2017 | 8 | 9 |
| 2018 | 4 | 0 |
| 2019 | 5 | 2 |
| 2020 | 1 | 2 |
| 2021 | 2 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 3 |
| 2025 | 2 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polycarbonate polyol composition12 May 2026US 12,624,151 B2Asahi Kasei Kabushiki Kaisha
- Polycarbonate resin and preparation method thereof14 Oct 2025US 12,441,836 B2LG Chem.Ltd.
- Polycarbonate resin20 May 2025US 12,304,998 B2Mitsubishi Gas Chemical Company, Inc.
- Polymerizable composition based on allyl carbonate monomers, polymerized product obtainable from said composition and uses thereof29 Jun 2021US 11,046,812 B2Mitsui Chemicals, Inc.
- Polycarbonate resin composition and optical lens using same9 Feb 2021US 10,913,848 B2Mitsubishi Gas Chemical Company, Inc.
- Resin and Method for Preparing the Same22 May 2025US 2025/0163215 A1LG Chem.Ltd.
- Polycarbonate Resin and Preparation Method Thereof21 Nov 2024US 2024/0384028 A1LG Chem.Ltd.
- Polycarbonate Resin Composition20 Jun 2024US 2024/0199803 A1Asahi Kasei Kabushiki Kaisha
- Xanthene derivative compound having high refractive index and (co)polymer comprising same13 Jun 2024US 2024/0190836 A1Research & Business Foundation Sungkyunkwan University
- Polycarbonate polyol composition20 Jul 2023US 2023/0227598 A1Asahi Kasei Kabushiki Kaisha
Most cited
By later US patents
- Electrophotographic photoconductor and aromatic polycarbonate resin for use therein50US 5,789,128 AHodogaya Chemical Co., Ltd. · 1998
- Electrophotographic photoconductor and aromatic polycarbonate resin for use therein34US 6,069,224 AHodogaya Chemical Co., Ltd. · 2000
- UV stabilized polycarbonate resins22US 4,260,719 AGeneral Electric Company · 1981
- Polycarbonate composition and article comprising the same7US 9,580,597 B2LG Chem.Ltd. · 2017
- Copolycarbonate and composition containing the same7US 9,745,466 B2LG Chem.Ltd. · 2017