C09K 23/16
Amines or polyamines
C09K23/16 (Amines or polyamines) appears on 504 US grants and 385 published applications in this corpus.
Search patents in C09K- Granted patents
- 504
- Published applications
- 385
- Assignees
- 285
- Inventors
- 1,350
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 8 | 0 |
| 1978 | 5 | 0 |
| 1979 | 5 | 0 |
| 1980 | 4 | 0 |
| 1981 | 7 | 0 |
| 1982 | 11 | 0 |
| 1983 | 8 | 0 |
| 1984 | 9 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 11 | 0 |
| 1990 | 13 | 0 |
| 1991 | 12 | 0 |
| 1992 | 17 | 0 |
| 1993 | 8 | 0 |
| 1994 | 7 | 0 |
| 1995 | 10 | 0 |
| 1996 | 9 | 0 |
| 1997 | 14 | 0 |
| 1998 | 8 | 0 |
| 1999 | 10 | 0 |
| 2000 | 19 | 0 |
| 2001 | 19 | 8 |
| 2002 | 19 | 18 |
| 2003 | 19 | 17 |
| 2004 | 7 | 35 |
| 2005 | 10 | 26 |
| 2006 | 10 | 12 |
| 2007 | 11 | 25 |
| 2008 | 9 | 22 |
| 2009 | 10 | 19 |
| 2010 | 12 | 19 |
| 2011 | 8 | 16 |
| 2012 | 19 | 16 |
| 2013 | 8 | 10 |
| 2014 | 19 | 9 |
| 2015 | 9 | 11 |
| 2016 | 9 | 12 |
| 2017 | 13 | 15 |
| 2018 | 4 | 10 |
| 2019 | 5 | 9 |
| 2020 | 9 | 16 |
| 2021 | 6 | 13 |
| 2022 | 8 | 15 |
| 2023 | 11 | 9 |
| 2024 | 9 | 12 |
| 2025 | 12 | 8 |
| 2026 | 7 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dispersions29 Sep 2026US 12,747,394 B2Lankem Ltd.
- Mining collectors15 Sep 2026US 12,734,529 B1
- Composition comprising a comb copolymer1 Sep 2026US 12,723,152 B2BYK-Chemie GmbH
- Polyalkyleneimine-based polymer as dispersants11 Aug 2026US 12,703,773 B2BASF SE
- Polyalkyleneimine-based polymers containing polyether chains31 Mar 2026US 12,590,183 B2BASF SE
- Composite emulsifier and oil-based drilling fluid13 Aug 2026US 2026/0234461 A1China Petroleum & Chemical Corporation
- Modified alkoxylated polyalkylene imines or modified alkoxylated polyamines6 Aug 2026US 2026/0226232 A1BASF SE
- Method for preparing stable liquid emulsion forms of plant extract25 Jun 2026US 2026/0174639 A1Sorse Technology Corporation
- Nanoparticle-surfactant stabilized foams25 Dec 2025US 2025/0388802 A1Cnergreen Corp.
- Dispersion liquid, coating material for forming resin film, resin film, and member11 Dec 2025US 2025/0376625 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Fluorocarbon emulsion stabilizing surfactants248US 9,012,390 B2Raindance Technologies, Inc. · 2015
- Microbiocidal polymeric quaternary ammonium compounds200US 4,005,193 AMillmaster Onyx Corporation · 1977
- Polyamino acid ester copolymers154US 5,910,564 ATh. Goldschmidt AG · 1999
- Fluorocarbon emulsion stabilizing surfactants147US 9,498,761 B2President and Fellows of Harvard College · 2016
- High viscosity microemulsions110US 4,472,291 A1984