C08G 63/89
Recovery of the polymer
C08G63/89 (Recovery of the polymer) appears on 79 US grants and 86 published applications in this corpus.
Search patents in C08G- Granted patents
- 79
- Published applications
- 86
- Assignees
- 51
- Inventors
- 221
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 6 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 1 |
| 2002 | 3 | 2 |
| 2003 | 0 | 1 |
| 2004 | 1 | 3 |
| 2005 | 3 | 9 |
| 2006 | 4 | 6 |
| 2007 | 7 | 4 |
| 2008 | 1 | 2 |
| 2009 | 1 | 2 |
| 2010 | 4 | 5 |
| 2011 | 4 | 2 |
| 2012 | 1 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 2 |
| 2016 | 2 | 5 |
| 2017 | 2 | 3 |
| 2018 | 5 | 2 |
| 2019 | 2 | 1 |
| 2020 | 1 | 3 |
| 2021 | 1 | 4 |
| 2022 | 2 | 6 |
| 2023 | 1 | 4 |
| 2024 | 2 | 6 |
| 2025 | 3 | 6 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Absorbable poly(p-dioxanone) pellets made from slow-to-crystallize ground resin and its fines7 Apr 2026US 12,594,692 B2Cilag GmbH International
- Manufacturing method of recycled polyester yarn using waste fabric3 Mar 2026US 12,565,720 B1Sam Bu Fine Chemical Co., Ltd.
- Method for production polyhydroxybutyric acid resin6 Jan 2026US 12,516,154 B2Kaneka Corporation
- Process for recycling polyethylene terephthalate using a washing reactor14 Oct 2025US 12,441,862 B2Revalyu Resources GmbH
- Process for recycling polyethylene terephthalate using different mono-ethylene glycol levels14 Oct 2025US 12,441,863 B2Revalyu Resources GmbH
- Method for recovering polyester and method for manufacturing recycled polyester2 Jul 2026US 2026/0184878 A1Teijin Frontier Co., Ltd.
- Process for recycling polyethylene terephthalate using different mono-ethylene glycol levels25 Jun 2026US 2026/0176442 A1Revalyu Resources GmbH
- Method for producing polyhydroxyalkanoate and use thereof14 May 2026US 2026/0132250 A1Kaneka Corporation
- Process for recycling polyethylene terephthalate using a washing reactor5 Feb 2026US 2026/0035536 A1Revalyu Resources GmbH
- Recycled polyester yarn using waste fabric4 Dec 2025US 2025/0369160 A1Sam Bu Fine Chemical Co., Ltd.
Most cited
By later US patents
- Solvent extraction of polyhydroxyalkanoates from biomass70US 5,942,597 AThe Procter & Gamble Company · 1999
- Methods of PHA extraction and recovery using non-halogenated solvents65US 6,043,063 AMonsanto Company · 2000
- Process for the recovery of polyhydroxyalkanoic acid55US 5,894,062 AMonsanto Company · 1999
- Extraction process52US 4,562,245 AImperial Chemical Industries PLC · 1985
- Method for isolating polymer resin from solution slurries45US 6,316,592 B1General Electric Company · 2001