C08F 4/28
Oxygen or compounds releasing free oxygen
Official title: Oxygen or compounds releasing free oxygen (redox systems C08F4/40)
C08F4/28 (Oxygen or compounds releasing free oxygen) appears on 434 US grants and 325 published applications in this corpus.
Search patents in C08F- Granted patents
- 434
- Published applications
- 325
- Assignees
- 252
- Inventors
- 1,238
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 20 | 0 |
| 1977 | 17 | 0 |
| 1978 | 19 | 0 |
| 1979 | 5 | 0 |
| 1980 | 7 | 0 |
| 1981 | 13 | 0 |
| 1982 | 6 | 0 |
| 1983 | 6 | 0 |
| 1984 | 6 | 0 |
| 1985 | 6 | 0 |
| 1986 | 5 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 7 | 0 |
| 1990 | 7 | 0 |
| 1991 | 8 | 0 |
| 1992 | 13 | 0 |
| 1993 | 7 | 0 |
| 1994 | 10 | 0 |
| 1995 | 7 | 0 |
| 1996 | 8 | 0 |
| 1997 | 10 | 0 |
| 1998 | 8 | 0 |
| 1999 | 7 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 2 |
| 2002 | 11 | 11 |
| 2003 | 6 | 4 |
| 2004 | 9 | 9 |
| 2005 | 0 | 3 |
| 2006 | 5 | 8 |
| 2007 | 3 | 3 |
| 2008 | 4 | 1 |
| 2009 | 1 | 3 |
| 2010 | 5 | 6 |
| 2011 | 2 | 6 |
| 2012 | 2 | 15 |
| 2013 | 4 | 9 |
| 2014 | 8 | 11 |
| 2015 | 13 | 13 |
| 2016 | 13 | 10 |
| 2017 | 8 | 14 |
| 2018 | 6 | 24 |
| 2019 | 21 | 14 |
| 2020 | 13 | 13 |
| 2021 | 10 | 31 |
| 2022 | 12 | 22 |
| 2023 | 13 | 32 |
| 2024 | 18 | 27 |
| 2025 | 22 | 19 |
| 2026 | 10 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Waterbased binder for two-component coating composition18 Aug 2026US 12,709,651 B2BASF SE
- Aqueous organic peroxide emulsion11 Aug 2026US 12,703,765 B2Arkema France
- Polymerization of diol bis(allyl carbonates) using a mixture of two different peroxy compounds14 Jul 2026US 12,679,914 B2PPG Industries Ohio, Inc.
- Vinyl acetate-based copolymer dispersions with small particle size7 Apr 2026US 12,595,323 B2Celanese International Corporation
- Method for producing fluoropolymer24 Mar 2026US 12,583,947 B2Daikin Industries, Ltd.
- Photovoltaic encapsulation film composition with anti-pid performance13 Aug 2026US 2026/0234312 A1
- Process for the production of pvc in aqueous suspension using a mixture of initiators and an activity control agent30 Jul 2026US 2026/0217878 A1Inovyn Europe Limited
- Composition comprising at least one solid organic peroxide9 Jul 2026US 2026/0193178 A1Arkema France
- Method for preparing a composition in powder form comprising at least one solid organic peroxide2 Jul 2026US 2026/0184677 A1Arkema France
- Hydrophilic compounds and fabrics25 Jun 2026US 2026/0176399 A1Industrial Technology Research Institute
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
- Visible light absorbing peroxy-esters69US 4,604,295 ALoctite Corporation · 1986
- Adhesive dressings67US 5,035,687 ASmith & Nephew, Inc. · 1991
- Thermoplastic resin composition and method for preparing the same48US 4,962,148 ANippon Oil and Fats Co., Ltd. · 1990