C08G 63/80
Solid-state polycondensation
C08G63/80 (Solid-state polycondensation) appears on 406 US grants and 342 published applications in this corpus.
Search patents in C08G- Granted patents
- 406
- Published applications
- 342
- Assignees
- 206
- Inventors
- 965
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 8 | 0 |
| 1980 | 4 | 0 |
| 1981 | 5 | 0 |
| 1982 | 5 | 0 |
| 1983 | 6 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 6 | 0 |
| 1995 | 12 | 0 |
| 1996 | 11 | 0 |
| 1997 | 11 | 0 |
| 1998 | 14 | 0 |
| 1999 | 11 | 0 |
| 2000 | 10 | 0 |
| 2001 | 18 | 10 |
| 2002 | 23 | 15 |
| 2003 | 21 | 19 |
| 2004 | 14 | 9 |
| 2005 | 5 | 16 |
| 2006 | 7 | 12 |
| 2007 | 10 | 17 |
| 2008 | 5 | 12 |
| 2009 | 4 | 17 |
| 2010 | 11 | 10 |
| 2011 | 3 | 13 |
| 2012 | 12 | 10 |
| 2013 | 10 | 19 |
| 2014 | 7 | 17 |
| 2015 | 12 | 9 |
| 2016 | 16 | 9 |
| 2017 | 11 | 15 |
| 2018 | 11 | 13 |
| 2019 | 5 | 11 |
| 2020 | 10 | 15 |
| 2021 | 10 | 13 |
| 2022 | 5 | 16 |
| 2023 | 7 | 16 |
| 2024 | 10 | 11 |
| 2025 | 9 | 14 |
| 2026 | 5 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polyester copolymer having excellent strength, and product comprising the same6 Oct 2026US 12,753,276 B2SK Chemicals Co., Ltd.
- Process for producing bis(2-hydroxyethyl) terephthalate in liquid form by depolymerization of polyethylene terephthalate (PET)15 Sep 2026US 12,735,551 B2Chempet S.r.I
- Absorbable poly(p-dioxanone) pellets made from slow-to-crystallize ground resin and its fines7 Apr 2026US 12,594,692 B2Cilag GmbH International
- Polyethylene furanoate, highly-viscous polyethylene furanoate manufacturing method, polyester composition, polyester bottle, polyester bottle manufacturing method, and beverage product10 Mar 2026US 12,570,792 B2Kirin Holdings Kabushiki Kaisha
- Polyester resin and method for producing blow-molded product made of polyester resin10 Mar 2026US 12,570,795 B2Toyobo Co., Ltd.
- Method for recycling polyester containers23 Jul 2026US 2026/0208395 A1Alpla Werke Alwin Lehner GmbH & Co. KG
- Polyester resin and method for producing polyester resin23 Jul 2026US 2026/0209428 A1Toyobo Co., Ltd.
- Polyester resin and molded article manufactured therefrom23 Apr 2026US 2026/0109809 A1SK Chemicals Co., Ltd.
- Liquid crystal polymer particle, manufacturing method thereof and polyimide film using the same5 Mar 2026US 2026/0062513 A1Taimide Technology Incorporation
- Polymer film, laminate, and laminate with metal25 Sep 2025US 2025/0297064 A1FUJIFILM Corporation
Most cited
By later US patents
- Isosorbide containing polyesters and methods for making same138US 6,063,464 AHNA Holdings, Inc. · 2000
- Polyesters including isosorbide as a comonomer and methods for making same120US 5,959,066 AHNA Holdings, Inc. · 1999
- Process for the continuous production of high molecular weight polyethylene terephthalate117US 4,064,112 AZimmer, Inc. · 1977
- Polyester film and methods for making same109US 5,958,581 AHNA Holdings, Inc. · 1999
- Machine for solid phase polymerization98US 4,370,302 ATeijin Limited · 1983