C08G 63/81
Using solvents
Official title: using solvents (C08G63/79 takes precedence)
C08G63/81 (Using solvents) appears on 156 US grants and 179 published applications in this corpus.
Search patents in C08G- Granted patents
- 156
- Published applications
- 179
- Assignees
- 123
- Inventors
- 540
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 6 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 7 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 4 | 2 |
| 2003 | 2 | 2 |
| 2004 | 0 | 4 |
| 2005 | 2 | 4 |
| 2006 | 3 | 7 |
| 2007 | 4 | 4 |
| 2008 | 2 | 2 |
| 2009 | 2 | 4 |
| 2010 | 4 | 7 |
| 2011 | 2 | 5 |
| 2012 | 2 | 5 |
| 2013 | 1 | 6 |
| 2014 | 8 | 7 |
| 2015 | 7 | 10 |
| 2016 | 4 | 5 |
| 2017 | 6 | 4 |
| 2018 | 4 | 6 |
| 2019 | 5 | 10 |
| 2020 | 5 | 5 |
| 2021 | 8 | 13 |
| 2022 | 5 | 14 |
| 2023 | 7 | 6 |
| 2024 | 8 | 27 |
| 2025 | 8 | 13 |
| 2026 | 6 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electrophotographic photoreceptor, process cartridge, and image forming apparatus1 Sep 2026US 12,724,355 B2FUJIFILM Business Innovation Corp.
- Bisphenols bearing pendant clickable norbornenyl group and polymers therefrom7 Jul 2026US 12,673,917 B2Council of Scientific and Industrial Research
- Nanoemulsions, methods of their production and related uses and products19 May 2026US 12,630,736 B2Perstorp AB
- Polymerizations in supercritical carbon dioxide, products of same, and uses thereof24 Mar 2026US 12,583,965 B2Cornell University
- Organic solvent-soluble copolymer polyester, composition for forming ultrafiltration membrane comprising same, and high water permeability reverse osmosis membrane prepared therefrom6 Jan 2026US 12,516,150 B2Toray Advanced Materials Korea Inc.
- Oxyalkylated lignin polyols, related compositions, and related methods24 Sep 2026US 2026/0286067 A1Board of Trustees of Michigan State University
- Novel Nanoemulsions, Methods of Their Production and Related Uses and Products24 Sep 2026US 2026/0286174 A1Perstorp AB
- Process for the synthesis of polyesterols by ring-opening co-polymerisation of gamma-butyrolactone with other lactones23 Jul 2026US 2026/0209430 A1BASF SE
- Manufacturing method of polyester25 Jun 2026US 2026/0176419 A1Nan Ya Plastics Corporation
- Polymerization of lactones in polar protic solvents7 May 2026US 2026/0125511 A1Novomer, Inc.
Most cited
By later US patents
- High clarity polyester containing sub-visual antimony phosphate derivatives particles72US 5,962,625 AEastman Chemical Company · 1999
- Process for preparing macrocyclic polyester oligomers59US 5,407,984 AGeneral Electric Company · 1995
- Process for production of acrylates from epoxides43US 9,096,510 B2Novomer, Inc. · 2015
- Process for production of acrylates from epoxides41US 9,914,689 B2Novomer, Inc. · 2018
- Method for producing polyesters containing low amounts of ether by-products40US 4,223,124 AThe Goodyear Tire & Rubber Company · 1980