C08G 73/0226
Quaternisation of polyalkyleneamines
Official title: {Quaternisation of polyalkylene(poly)amines}
C08G73/0226 (Quaternisation of polyalkyleneamines) appears on 164 US grants and 111 published applications in this corpus.
Search patents in C08G- Granted patents
- 164
- Published applications
- 111
- Assignees
- 106
- Inventors
- 377
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 12 | 0 |
| 1978 | 7 | 0 |
| 1979 | 4 | 0 |
| 1980 | 8 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 6 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 6 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 2 |
| 2003 | 3 | 4 |
| 2004 | 1 | 3 |
| 2005 | 1 | 3 |
| 2006 | 1 | 5 |
| 2007 | 2 | 6 |
| 2008 | 2 | 6 |
| 2009 | 2 | 5 |
| 2010 | 2 | 3 |
| 2011 | 2 | 4 |
| 2012 | 4 | 3 |
| 2013 | 3 | 5 |
| 2014 | 7 | 9 |
| 2015 | 5 | 9 |
| 2016 | 5 | 2 |
| 2017 | 4 | 5 |
| 2018 | 8 | 5 |
| 2019 | 1 | 1 |
| 2020 | 1 | 3 |
| 2021 | 2 | 4 |
| 2022 | 4 | 4 |
| 2023 | 2 | 3 |
| 2024 | 3 | 9 |
| 2025 | 0 | 2 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Amphiphilic alkoxylated polyalkylene imines or alkoxylated polyamines4 Aug 2026US 12,698,360 B2BASF SE
- Process and solution for preparing a surface with bacteriostatic and bactericidal activity, surface thus prepared and uses thereof26 May 2026US 12,635,688 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Compositions comprising fullerenyl mesochlorin nano-photosensitizers with covalently bound antibiotics and their uses in combination therapy10 Mar 2026US 12,570,665 B2University of Massachusetts
- Amphiphilic alkoxylated polyamines and their uses10 Feb 2026US 12,545,857 B2The Procter & Gamble Company
- Collectors for flotation process31 Dec 2024US 12,180,341 B2BASF SE
- Modified alkoxylated polyalkylene imines or modified alkoxylated polyamines6 Aug 2026US 2026/0226232 A1BASF SE
- Polymer and manufacturing method thereof and material for anion exchange comprising the same30 Jul 2026US 2026/0217915 A1Hanwha Solutions Corporation
- Antipathogen copolymer apparatus and method of use thereof16 Apr 2026US 2026/0101890 A1
- Antipathogen poly(2-ethyl-2-oxazoline) based copolymer apparatus and method of use thereof16 Apr 2026US 2026/0103661 A1
- Reduced salt polyethylenimine film apparatus and method of use thereof9 Apr 2026US 2026/0097142 A1
Most cited
By later US patents
- Quaternized polymer for use as a cosmetic agent in cosmetic compositions for the hair and skin301US 4,217,914 AL'oreal · 1980
- Treating hair with quaternized polymers252US 4,197,865 AL'oreal · 1980
- Randomly terminated capped polymers248US 4,027,020 AMillmaster Onyx Corporation · 1977
- Hair dye composition containing quaternized polymers247US 4,381,919 ASociete Anonyme dite: L'Oreal · 1983
- Hair dyeing compositions containing quaternized polymer234US 4,422,853 AL'oreal · 1983