C08G 59/502
Polyalkylene polyamines
Official title: {Polyalkylene polyamines}
C08G59/502 (Polyalkylene polyamines) appears on 121 US grants and 172 published applications in this corpus.
Search patents in C08G- Granted patents
- 121
- Published applications
- 172
- Assignees
- 91
- Inventors
- 402
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 1 |
| 2006 | 1 | 3 |
| 2007 | 1 | 0 |
| 2008 | 2 | 4 |
| 2009 | 1 | 5 |
| 2010 | 2 | 7 |
| 2011 | 2 | 2 |
| 2012 | 6 | 6 |
| 2013 | 2 | 6 |
| 2014 | 5 | 7 |
| 2015 | 4 | 7 |
| 2016 | 7 | 8 |
| 2017 | 6 | 12 |
| 2018 | 9 | 5 |
| 2019 | 10 | 7 |
| 2020 | 5 | 12 |
| 2021 | 5 | 13 |
| 2022 | 6 | 16 |
| 2023 | 5 | 8 |
| 2024 | 4 | 14 |
| 2025 | 10 | 13 |
| 2026 | 10 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods of treating unconsolidated sand formations using a red mud sealant composition6 Oct 2026US 12,753,339 B2Saudi Arabian Oil Company
- High-performance composite panel and manufacturing method8 Sep 2026US 12,729,277 B2The United States of America as represented by the Secretary of the Army
- Curable composition containing rice husk ash biosilica toughened epoxy resin30 Jun 2026US 12,668,682 B2Najran University
- Waterborne epoxy curing agent19 May 2026US 12,630,669 B2Evonik Operations GmbH
- Epoxy resin adhesive for medical device and cured product of the same, and medical device member and medical device19 May 2026US 12,630,752 B2FUJIFILM Corporation
- Syntactic foam compositions1 Oct 2026US 2026/0297388 A1PRC-DeSoto International, Inc.
- Bio-based curable epoxy composition17 Sep 2026US 2026/0275083 A1Najran University
- Vegetable oil-derivative epoxy compositions having improved performance10 Sep 2026US 2026/0265447 A1Washington State University
- Curable heat-conductive adhesive agent6 Aug 2026US 2026/0226324 A1Sekisui Chemical Co., Ltd.
- Curable thermally conductive adhesive and thermally conductive member6 Aug 2026US 2026/0226325 A1Sekisui Chemical Co., Ltd.
Most cited
By later US patents
- Manipulation of fluids in three-dimensional porous photonic structures with patterned surface properties66US 9,279,771 B2President and Fellows of Harvard College · 2016
- Seal for liquid crystal display60US 4,695,490 ARCA Corporation · 1987
- Pendant epoxide polymers and methods of treating subterranean formations26US 10,005,930 B2Saudi Arabian Oil Company · 2018
- Chelate resins prepared from the cured reaction product of a polyalkylenepolyamine and epoxide19US 4,195,138 AThe Dow Chemical Company · 1980
- Composite material19US 8,664,285 B2Cognis IP Management GmbH · 2014