C08K 5/25
Carboxylic acid hydrazides
C08K5/25 (Carboxylic acid hydrazides) appears on 156 US grants and 198 published applications in this corpus.
Search patents in C08K- Granted patents
- 156
- Published applications
- 198
- Assignees
- 133
- Inventors
- 548
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 9 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 2 | 1 |
| 2004 | 3 | 2 |
| 2005 | 0 | 5 |
| 2006 | 1 | 4 |
| 2007 | 1 | 6 |
| 2008 | 0 | 4 |
| 2009 | 1 | 7 |
| 2010 | 3 | 10 |
| 2011 | 6 | 6 |
| 2012 | 4 | 6 |
| 2013 | 2 | 4 |
| 2014 | 4 | 6 |
| 2015 | 5 | 7 |
| 2016 | 3 | 9 |
| 2017 | 9 | 6 |
| 2018 | 7 | 9 |
| 2019 | 3 | 6 |
| 2020 | 7 | 16 |
| 2021 | 5 | 14 |
| 2022 | 8 | 18 |
| 2023 | 6 | 10 |
| 2024 | 9 | 13 |
| 2025 | 10 | 15 |
| 2026 | 5 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Flame-retardant vibration isolation rubber composition and flame-retardant vibration isolation rubber member6 Oct 2026US 12,753,294 B2Sumitomo Riko Company Limited
- Aqueous self-crosslinkable polyurethane dispersions22 Sep 2026US 12,742,035 B2BASF SE
- Molecular tetrahedron nanocage, its preparation, and uses thereof30 Jun 2026US 12,668,562 B2Purdue Research Foundation
- Polyethylene composition for use with recycled polyethylene9 Jun 2026US 12,649,843 B2Sabic Global Technologies B.V.
- Three-dimensional printing with dihydrazide antioxidants19 May 2026US 12,629,886 B2Peridot Print LLC
- Three-dimensional printing with dihydrazide antioxidants17 Sep 2026US 2026/0273841 A1Peridot Print LLC
- Degradable crosslinking agent10 Sep 2026US 2026/0265184 A1Nagase Chemtex Corporation
- Degradable crosslinking agent20 Aug 2026US 2026/0242563 A1Nagase Chemtex Corporation
- Aqueous coating composition and method of preparing coating6 Aug 2026US 2026/0226281 A1Dow Global Technologies LLC
- Resin composition and heat dissipation member16 Jul 2026US 2026/0201148 A1Sekisui Chemical Co., Ltd.
Most cited
By later US patents
- Epoxy resin powder including ethylene vinyl acetate40US 4,009,224 AMinnesota Mining and Manufacturing Company · 1977
- Poly-4-methylpentene-1 composition32US 4,166,057 ADainichi-Nippon Cables, Ltd. · 1979
- Bis-salicyloyl-dicarboxylic acid dihydrazides as stabilizers for polyolefines28US 4,012,360 ACiba-Geigy Corporation · 1977
- Thermosettable acrylic resin composition for powder coating20US 4,046,727 ASumitomo Chemical Company, Limited · 1977
- Stabilizing polyolefins with diacyl dihydrazides18US 4,038,247 ACiba-Geigy Corporation · 1977