C08G 63/82
Characterised by the catalyst used
Official title: characterised by the catalyst used
C08G63/82 (Characterised by the catalyst used) appears on 1,295 US grants and 1,375 published applications in this corpus.
Search patents in C08G- Granted patents
- 1,295
- Published applications
- 1,375
- Assignees
- 652
- Inventors
- 3,518
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 16 | 0 |
| 1978 | 28 | 0 |
| 1979 | 10 | 0 |
| 1980 | 5 | 0 |
| 1981 | 12 | 0 |
| 1982 | 8 | 0 |
| 1983 | 5 | 0 |
| 1984 | 17 | 0 |
| 1985 | 9 | 0 |
| 1986 | 9 | 0 |
| 1987 | 6 | 0 |
| 1988 | 9 | 0 |
| 1989 | 10 | 0 |
| 1990 | 10 | 0 |
| 1991 | 24 | 0 |
| 1992 | 21 | 0 |
| 1993 | 20 | 0 |
| 1994 | 18 | 0 |
| 1995 | 28 | 0 |
| 1996 | 22 | 0 |
| 1997 | 32 | 0 |
| 1998 | 34 | 0 |
| 1999 | 36 | 0 |
| 2000 | 33 | 0 |
| 2001 | 30 | 7 |
| 2002 | 45 | 32 |
| 2003 | 40 | 38 |
| 2004 | 23 | 45 |
| 2005 | 17 | 45 |
| 2006 | 38 | 61 |
| 2007 | 26 | 46 |
| 2008 | 16 | 49 |
| 2009 | 22 | 52 |
| 2010 | 32 | 36 |
| 2011 | 17 | 50 |
| 2012 | 27 | 49 |
| 2013 | 31 | 51 |
| 2014 | 42 | 49 |
| 2015 | 46 | 55 |
| 2016 | 45 | 39 |
| 2017 | 31 | 51 |
| 2018 | 38 | 48 |
| 2019 | 41 | 49 |
| 2020 | 27 | 66 |
| 2021 | 34 | 73 |
| 2022 | 37 | 69 |
| 2023 | 30 | 91 |
| 2024 | 47 | 96 |
| 2025 | 41 | 76 |
| 2026 | 34 | 52 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C08G 63/85Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum636
- C08G 63/823For the preparation of polylactones or polylactides298
- C08G 63/87Non-metals or inter-compounds thereof248
- C08G 63/83Alkali metals, alkaline earth metals, beryllium, magnesium, copper, silver, gold, zinc, cadmium195
- C08G 63/84Boron, aluminium, gallium, indium, thallium, rare-earth metals, or compounds thereof98
- C08G 63/826Metals not provided for in groups c08g63/83 - c08g63/8660
Recent patents
- Biodegradable polyester resin prepared by adding reaction rate control agent and molecular weight increasing agent derived from biomass and method for preparing same6 Oct 2026US 12,753,275 B2Bioplastics Innovations Limited
- Polyester copolymer having excellent strength, and product comprising the same6 Oct 2026US 12,753,276 B2SK Chemicals Co., Ltd.
- Method for preparing glutaryl-bridged bis-biogenic guanidine chelate and method for preparing polybutylene succinate22 Sep 2026US 12,742,039 B2Polytex Chemical Engineering Co., Ltd.
- Ring-opening polymerizations using a flow reactor8 Sep 2026US 12,729,271 B2International Business Machines Corporation
- Modified ethylene-vinyl alcohol resin and production method therefor25 Aug 2026US 12,715,964 B2Mitsubishi Chemical Corporation
- Polyesters and a process for preparing these polyesters8 Oct 2026US 2026/0308313 A1Evonik Operations GmbH
- Manufacturing method of polyethylene furandicarboxylate8 Oct 2026US 2026/0308316 A1Nan Ya Plastics Corporation
- Polyester polymer, preparation method of polyester polymer, and molded article comprising the same24 Sep 2026US 2026/0286040 A1LG Chem.Ltd.
- Titanate compounds as catalysts in a method for producing polyester24 Sep 2026US 2026/0286045 A1Equipolymers GmbH
- Process For Preparing Biodegradable Polyester And Biodegradable Polyester Prepared Thereby17 Sep 2026US 2026/0275031 A1Hanwha Totalenergies Petrochemical Co., Ltd.
Most cited
By later US patents
- Polyester process189US 6,063,827 AXerox Corporation · 2000
- Method of post-polymerization stabilization of high activity catalysts in continuous polyethylene terephthalate production155US 5,898,058 AWellman, Inc. · 1999
- Process for preparing copolyesters of terephthalic acid ethylene glycol and 1 4-cyclohexanedimethanol exhibiting a neutral hue high clarity and increased brightness137US 5,681,918 AEastman Chemical Company · 1997
- Process and catalyst-inhibitor systems for preparing synthetic linear polyesters136US 3,962,189 AEastman Kodak Company · 1976
- Process and catalyst inhibitor systems for preparing synthetic linear polyesters131US 4,010,145 AEastman Kodak Company · 1977