C08G 64/00
Macromolecular compounds obtained by reactions forming a carbonic ester link in the
Official title: Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule (polycarbonate-amides C08G69/44; polycarbonate-imides C08G73/16)
C08G64/00 (Macromolecular compounds obtained by reactions forming a carbonic ester link in the) appears on 3,323 US grants and 2,662 published applications in this corpus.
Search patents in C08G- Granted patents
- 3,323
- Published applications
- 2,662
- Assignees
- 725
- Inventors
- 5,401
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 21 | 0 |
| 1977 | 22 | 0 |
| 1978 | 35 | 0 |
| 1979 | 24 | 0 |
| 1980 | 35 | 0 |
| 1981 | 40 | 0 |
| 1982 | 30 | 0 |
| 1983 | 35 | 0 |
| 1984 | 35 | 0 |
| 1985 | 34 | 0 |
| 1986 | 21 | 0 |
| 1987 | 49 | 0 |
| 1988 | 61 | 0 |
| 1989 | 77 | 0 |
| 1990 | 78 | 0 |
| 1991 | 77 | 0 |
| 1992 | 76 | 0 |
| 1993 | 65 | 0 |
| 1994 | 77 | 0 |
| 1995 | 76 | 0 |
| 1996 | 62 | 0 |
| 1997 | 60 | 0 |
| 1998 | 64 | 0 |
| 1999 | 50 | 0 |
| 2000 | 53 | 0 |
| 2001 | 97 | 10 |
| 2002 | 86 | 69 |
| 2003 | 83 | 91 |
| 2004 | 74 | 78 |
| 2005 | 37 | 54 |
| 2006 | 51 | 62 |
| 2007 | 30 | 71 |
| 2008 | 29 | 82 |
| 2009 | 61 | 75 |
| 2010 | 70 | 87 |
| 2011 | 47 | 94 |
| 2012 | 59 | 120 |
| 2013 | 89 | 105 |
| 2014 | 72 | 144 |
| 2015 | 124 | 133 |
| 2016 | 126 | 141 |
| 2017 | 127 | 149 |
| 2018 | 115 | 140 |
| 2019 | 117 | 141 |
| 2020 | 119 | 159 |
| 2021 | 110 | 122 |
| 2022 | 85 | 130 |
| 2023 | 68 | 109 |
| 2024 | 76 | 108 |
| 2025 | 68 | 112 |
| 2026 | 46 | 76 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Polycarbonate, and method for preparing same6 Oct 2026US 12,753,277 B2LG Chem.Ltd.
- Chlorosulfonated polypropylene carbonate, and production method and use thereof6 Oct 2026US 12,753,278 B2Changchun Institute of Applied Chemistry Chinese Academy of Sciences
- Polycarbonate and method for preparing same29 Sep 2026US 12,747,320 B2LG Chem.Ltd.
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus29 Sep 2026US 12,748,356 B2FUJIFILM Business Innovation Corp.
- Optical lens that contains thermoplastic resin22 Sep 2026US 12,742,909 B2Mitsubishi Gas Chemical Company, Inc.
- Polycarbonate-based resin composition and molded article8 Oct 2026US 2026/0308318 A1Idemitsu Kosan Co., Ltd.
- Polycarbonate-polyorganosiloxane copolymer, polycarbonate resin composition and molded body8 Oct 2026US 2026/0308330 A1Idemitsu Kosan Co., Ltd.
- Polycarbonate-polyorganosiloxane copolymer, resin composition, and molded article thereof8 Oct 2026US 2026/0308331 A1Idemitsu Kosan Co., Ltd.
- Biodegradable resin composition8 Oct 2026US 2026/0308372 A1Mitsubishi Gas Chemical Company, Inc.
- Polycarbonate resin composition and molded article thereof8 Oct 2026US 2026/0308374 A1Idemitsu Kosan Co., Ltd.
Most cited
By later US patents
- Copolymers of tyrosine-based polycarbonate and poly(alkylene oxide)299US 5,658,995 ARutgers, The State University · 1997
- Biodegradable, anionic polymers derived from the amino acid L-tyrosine283US 6,120,491 AThe State University of Rutgers · 2000
- Process for preparing a branched polycarbonate273US 4,001,184 AGeneral Electric Company · 1977
- Process for preparing branched aromatic polycarbonates247US 6,437,083 B1General Electric Company · 2002
- Hydrolytically degradable polymers and hydrogels made therefrom235US 6,348,558 B1Shearwater Corporation · 2002