C08F 4/04
Azo-compounds
C08F4/04 (Azo-compounds) appears on 218 US grants and 188 published applications in this corpus.
Search patents in C08F- Granted patents
- 218
- Published applications
- 188
- Assignees
- 147
- Inventors
- 584
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 9 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 11 | 1 |
| 2002 | 3 | 4 |
| 2003 | 2 | 4 |
| 2004 | 4 | 5 |
| 2005 | 0 | 3 |
| 2006 | 3 | 1 |
| 2007 | 3 | 5 |
| 2008 | 3 | 2 |
| 2009 | 2 | 6 |
| 2010 | 2 | 5 |
| 2011 | 6 | 7 |
| 2012 | 4 | 6 |
| 2013 | 2 | 9 |
| 2014 | 9 | 10 |
| 2015 | 9 | 4 |
| 2016 | 6 | 11 |
| 2017 | 10 | 7 |
| 2018 | 9 | 7 |
| 2019 | 6 | 13 |
| 2020 | 11 | 8 |
| 2021 | 5 | 14 |
| 2022 | 7 | 21 |
| 2023 | 5 | 6 |
| 2024 | 11 | 12 |
| 2025 | 13 | 11 |
| 2026 | 5 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for producing hollow particles12 May 2026US 12,623,198 B2Zeon Corporation
- Thermal storage materials and applications thereof5 May 2026US 12,618,346 B2Brandeis University
- Cationic polymerization initiator28 Apr 2026US 12,612,471 B2Kirin Holdings Kabushiki Kaisha
- Polyvinyl alcohol-based resin, method for producing polyvinyl alcohol-based resin, dispersant and dispersant for suspension polymerization28 Apr 2026US 12,612,478 B2Mitsubishi Chemical Corporation
- Acrylate oligomers, acrylate oligomer emulsions, and fluorine-free stain-release compositions containing the same31 Mar 2026US 12,590,409 B23M Innovative Properties Company
- Method for producing polymer, polymer production device, and system for optimizing radical polymerization reaction6 Aug 2026US 2026/0226213 A1Jsr Corporation
- Water repellent composition2 Jul 2026US 2026/0184907 A1Daikin Industries, Ltd.
- Hydrophilic compounds and fabrics25 Jun 2026US 2026/0176399 A1Industrial Technology Research Institute
- Strength-enhanced and toughened plastic material compounded with single-chain nanoparticles and preparation method therefor18 Jun 2026US 2026/0167746 A1Jilin University
- 2-Component Dental Materials Based On Crosslinked Polymeric Particles Bearing Acylthiourea Groups14 May 2026US 2026/0132235 A1
Most cited
By later US patents
- Polymerization processes and toner compositions therefrom134US 5,322,912 AXerox Corporation · 1994
- Polymerization process and toner compositions therefrom71US 5,401,804 AXerox Corporation · 1995
- Perfluorinated amide salts and their uses as ionic conducting materials61US 6,319,428 B1Centre National De La Recherche Scientifique · 2001
- Perfluoroalkyl functionalized polyacrylamide for alcohol resistant-aqueous film-forming foam (AR-AFFF) formulation36US 9,956,447 B2Tyco Fire & Security GmbH · 2018
- Proton conductors in liquid form34US 6,120,696 ACentre National De La Recherche Scientifique · 2000