C08G 73/02
Polyamines
C08G73/02 (Polyamines) appears on 2,568 US grants and 2,481 published applications in this corpus.
Search patents in C08G- Granted patents
- 2,568
- Published applications
- 2,481
- Assignees
- 1,157
- Inventors
- 6,238
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 24 | 0 |
| 1977 | 44 | 0 |
| 1978 | 30 | 0 |
| 1979 | 17 | 0 |
| 1980 | 20 | 0 |
| 1981 | 15 | 0 |
| 1982 | 17 | 0 |
| 1983 | 25 | 0 |
| 1984 | 22 | 0 |
| 1985 | 16 | 0 |
| 1986 | 19 | 0 |
| 1987 | 22 | 0 |
| 1988 | 16 | 0 |
| 1989 | 23 | 0 |
| 1990 | 26 | 0 |
| 1991 | 28 | 0 |
| 1992 | 32 | 0 |
| 1993 | 47 | 0 |
| 1994 | 49 | 0 |
| 1995 | 34 | 0 |
| 1996 | 52 | 0 |
| 1997 | 57 | 0 |
| 1998 | 57 | 0 |
| 1999 | 64 | 0 |
| 2000 | 49 | 0 |
| 2001 | 49 | 20 |
| 2002 | 41 | 30 |
| 2003 | 35 | 38 |
| 2004 | 24 | 57 |
| 2005 | 28 | 64 |
| 2006 | 37 | 64 |
| 2007 | 26 | 71 |
| 2008 | 32 | 74 |
| 2009 | 25 | 80 |
| 2010 | 49 | 94 |
| 2011 | 53 | 92 |
| 2012 | 72 | 95 |
| 2013 | 84 | 130 |
| 2014 | 90 | 126 |
| 2015 | 94 | 161 |
| 2016 | 105 | 131 |
| 2017 | 123 | 148 |
| 2018 | 121 | 153 |
| 2019 | 115 | 137 |
| 2020 | 129 | 133 |
| 2021 | 86 | 141 |
| 2022 | 78 | 111 |
| 2023 | 83 | 80 |
| 2024 | 84 | 109 |
| 2025 | 61 | 95 |
| 2026 | 39 | 47 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C08G 73/0206Polyalkyleneamines776
- C08G 73/026Wholly aromatic polyamines618
- C08G 73/028Polyamidoamines461
- C08G 73/0233Polyamines derived from oxazolines, oxazines or having pendant acyl groups292
- C08G 73/024Polyamines containing oxygen in the form of ether bonds in the main262
- C08G 73/0273Polyamines containing heterocyclic moieties in the main chain220
- C08G 73/0246Polyamines containing other atoms than carbon, hydrogen, nitrogen or oxygen in the95
Recent patents
- Melamine-based polymers and uses thereof6 Oct 2026US 12,753,272 B2Bio-Fence Ltd.
- Synthesis of self-healing benzoxazine polymers through melt polymerization6 Oct 2026US 12,753,281 B2Kaneka Corporation
- Compositions and their applications29 Sep 2026US 12,747,415 B2BASF SE
- Cleavable conjugates of catechol compounds and water-soluble polymers and methods of treatment using the same25 Aug 2026US 12,714,704 B2Serina Therapeutics (AL), Inc.
- Compositions for transfecting a nucleic acid molecule into a cell comprising benzo-fused heterocyclic compounds grafted to a cationic polymer, and their applications25 Aug 2026US 12,716,075 B2Sartorius Polyplus
- Derivatized polyamine polymers for use in metal scavenging applications8 Oct 2026US 2026/0308027 A1Bl Technologies, Inc.
- An intermediate composition1 Oct 2026US 2026/0297259 A1Kemira Oyj
- Unsaturated polymer electrolytes, and methods for producing and using same in electrochemical applications1 Oct 2026US 2026/0302332 A1Hydro-Quebec
- Carbon dioxide capture process using hydrogels24 Sep 2026US 2026/0284567 A1Commonwealth Scientific and Industrial Research Organisation
- Binary polyethyleneimine emulsion breaker compositions for ethylene plant quench water systems24 Sep 2026US 2026/0285785 A1Ecolab USA Inc.
Most cited
By later US patents
- Use of hexahydrolupulones as antibacterial agents1,024US 6,486,286 B1Affymetrix, Inc. · 2002
- Quaternized polymer for use as a cosmetic agent in cosmetic compositions for the hair and skin301US 4,217,914 AL'oreal · 1980
- Dense star polymers having core, core branches, terminal groups293US 4,507,466 AThe Dow Chemical Company · 1985
- Dense star polymers having two dimensional molecular diameter280US 4,587,329 AThe Dow Chemical Company · 1986
- Ester-terminated polyamides of polymerized fatty acids useful in formulating transparent gels in low polarity liquids271US 5,783,657 AUnion Camp Corporation · 1998