C08F 20/44
Acrylonitrile
C08F20/44 (Acrylonitrile) appears on 84 US grants and 81 published applications in this corpus.
Search patents in C08F- Granted patents
- 84
- Published applications
- 81
- Assignees
- 78
- Inventors
- 273
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 6 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 2 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 4 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 3 |
| 2014 | 2 | 4 |
| 2015 | 3 | 1 |
| 2016 | 5 | 4 |
| 2017 | 3 | 3 |
| 2018 | 1 | 5 |
| 2019 | 2 | 12 |
| 2020 | 2 | 7 |
| 2021 | 10 | 8 |
| 2022 | 4 | 5 |
| 2023 | 7 | 8 |
| 2024 | 2 | 6 |
| 2025 | 4 | 1 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- High-conductivity sulfur-based positive electrode material for secondary battery and secondary battery19 May 2026US 12,633,538 B2Shanghai Jiao Tong University
- Synergistic combination for inhibiting polymerization14 Apr 2026US 12,600,804 B2Bl Technologies, Inc.
- Polymer, solid-state electrolyte, gel electrolyte, and battery10 Mar 2026US 12,570,773 B2Zhuhai Cosmx Battery Co., Ltd.
- Methods for producing graphene from coal21 Oct 2025US 12,448,293 B2Carbon Holdings Intellectual Properties, LLC
- Resin composition, resin film using same, metal foil with resin, metal-clad laminate, and wiring board12 Aug 2025US 12,384,862 B2Panasonic Intellectual Property Management Co., Ltd.
- Polymer dispersants, dispersant concentrates, conductive carbon dispersions, and electrode slurry compositions, and methods of making and use thereof18 Jun 2026US 2026/0167833 A1Infineum International Limited
- Small-particle-size allophane-amidoximated polyacrylonitrile composite material for uranium extraction from seawater and its preparation method11 Jun 2026US 2026/0158467 A1Guangdong University of Technology
- Methods for producing graphene from coal15 Jan 2026US 2026/0015241 A1Carbon Holdings Intellectual Properties, LLC
- Polymer, preparation method, negative electrode plate, secondary battery, and power consuming apparatus15 Jan 2026US 2026/0018619 A1Contemporary Amperex Technology Co., Limited
- Electrode for non-aqueous electrolyte secondary battery comprising collector containing porous metal and organosulfur active material, non-aqueous electrolyte secondary battery containing said electrode, and organosulfur active material for producing said electrode23 Jan 2025US 2025/0030001 A1Adeka Corporation
Most cited
By later US patents
- Surface-functionalized mesoporous carbon materials255US 9,249,241 B2UT-Battelle, LLC · 2016
- Process for polymerizing acrylonitrile22US 5,886,118 ACase Western Reserve University · 1999
- Process for the polymerization of acrylonitrile11US 4,049,605 AJapan Exlan Company Limited · 1977
- Acrylonitrile polymerization in fluorinated hydrocarbons11US 4,255,546 ABayer Aktiengesellschaft · 1981
- Accelerator free latex formulations, methods of making same and articles made from same10US 6,706,816 B2Best Manufacturing Company · 2004