C08G 81/00
Macromolecular compounds obtained by interreacting polymers in the absence of monomers
Official title: Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers (involving only carbon-to-carbon unsaturated bond reactions C08F299/00 {; polyester-amides C08G69/44; polyester-imides C08G73/16; polyamides-imides C08G73/14; block- or graft polymers containing polysiloxane sequences C08G77/42})
C08G81/00 (Macromolecular compounds obtained by interreacting polymers in the absence of monomers) appears on 1,870 US grants and 1,667 published applications in this corpus.
Search patents in C08G- Granted patents
- 1,870
- Published applications
- 1,667
- Assignees
- 998
- Inventors
- 5,014
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 19 | 0 |
| 1978 | 34 | 0 |
| 1979 | 29 | 0 |
| 1980 | 20 | 0 |
| 1981 | 21 | 0 |
| 1982 | 20 | 0 |
| 1983 | 22 | 0 |
| 1984 | 14 | 0 |
| 1985 | 15 | 0 |
| 1986 | 9 | 0 |
| 1987 | 8 | 0 |
| 1988 | 17 | 0 |
| 1989 | 19 | 0 |
| 1990 | 23 | 0 |
| 1991 | 42 | 0 |
| 1992 | 43 | 0 |
| 1993 | 46 | 0 |
| 1994 | 48 | 0 |
| 1995 | 42 | 0 |
| 1996 | 37 | 0 |
| 1997 | 30 | 0 |
| 1998 | 35 | 0 |
| 1999 | 28 | 0 |
| 2000 | 35 | 0 |
| 2001 | 35 | 10 |
| 2002 | 27 | 30 |
| 2003 | 28 | 30 |
| 2004 | 26 | 33 |
| 2005 | 18 | 30 |
| 2006 | 19 | 20 |
| 2007 | 15 | 14 |
| 2008 | 10 | 20 |
| 2009 | 9 | 30 |
| 2010 | 14 | 35 |
| 2011 | 19 | 32 |
| 2012 | 14 | 49 |
| 2013 | 45 | 80 |
| 2014 | 54 | 66 |
| 2015 | 57 | 97 |
| 2016 | 68 | 99 |
| 2017 | 83 | 140 |
| 2018 | 85 | 165 |
| 2019 | 117 | 134 |
| 2020 | 126 | 110 |
| 2021 | 79 | 81 |
| 2022 | 56 | 93 |
| 2023 | 44 | 78 |
| 2024 | 60 | 78 |
| 2025 | 62 | 53 |
| 2026 | 30 | 60 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Acrylic polyester resin and an aqueous coating composition containing the same15 Sep 2026US 12,735,524 B2PPG Industries Ohio, Inc.
- Cryoprotectant polymers and methods of making and using thereof25 Aug 2026US 12,714,094 B2Board of Regents, The University of Texas System
- Block copolymer, production method therefor, polymeric electrolyte material, polymeric electrolyte molded article, polymeric electrolyte film, electrolyte film equipped with catalyst layer, membrane electrode composite, solid polymer fuel cell, and water electrolysis type hydrogen generating device25 Aug 2026US 12,715,962 B2Toray Industries, Inc.
- Modified ethylene-vinyl alcohol resin and production method therefor25 Aug 2026US 12,715,964 B2Mitsubishi Chemical Corporation
- Curable polymeric compositions18 Aug 2026US 12,709,698 B2Poly-Med, Inc.
- Polyamide block copolymer, polyamide block copolymer composition, and molded article8 Oct 2026US 2026/0308332 A1Kuraray Co., Ltd.
- Block copolymers with polyester moieties and applications thereof8 Oct 2026US 2026/0308333 A1ISP Investments Inc.
- Programmably degradable hydrogels for functional molecular release1 Oct 2026US 2026/0294805 A1Georgia Tech Research Corporation
- Demulsifying method1 Oct 2026US 2026/0297438 A1Innospec Limited
- Crosslinked copolymer, polymer membrane comprising the same, and anion exchange membrane comprising the polymer membrane1 Oct 2026US 2026/0302299 A1Hanwha Solutions Corporation
Most cited
By later US patents
- Biodegradable injectable nanoparticles724US 5,543,158 AMassachusetts Institute of Technology · 1996
- Affinity matrices of modified polysaccharide supports427US 5,059,654 ACuno Incorporated · 1991
- Thermosensitive biodegradable polymers based on poly(ether-ester)block copolymers310US 5,702,717 AMacroMed, Inc. · 1997
- Poly(alkylene oxide) amino acid copolymers and drug carriers and charged copolymers based thereon304US 5,219,564 AEnzon, Inc. · 1993
- Multifunctional organic polymers296US 5,462,990 ABoard of Regents, The University of Texas System · 1995