C08F 20/56
Acrylamide
Official title: Acrylamide; Methacrylamide
C08F20/56 (Acrylamide) appears on 169 US grants and 186 published applications in this corpus.
Search patents in C08F- Granted patents
- 169
- Published applications
- 186
- Assignees
- 165
- Inventors
- 581
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 2 |
| 2004 | 1 | 3 |
| 2005 | 0 | 4 |
| 2006 | 2 | 0 |
| 2007 | 2 | 3 |
| 2008 | 1 | 5 |
| 2009 | 1 | 0 |
| 2010 | 0 | 4 |
| 2011 | 4 | 2 |
| 2012 | 2 | 6 |
| 2013 | 3 | 6 |
| 2014 | 6 | 3 |
| 2015 | 1 | 7 |
| 2016 | 5 | 6 |
| 2017 | 5 | 8 |
| 2018 | 4 | 21 |
| 2019 | 11 | 30 |
| 2020 | 13 | 23 |
| 2021 | 16 | 12 |
| 2022 | 13 | 9 |
| 2023 | 15 | 12 |
| 2024 | 11 | 9 |
| 2025 | 6 | 5 |
| 2026 | 5 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for preparing ultra-fine and uniform acrylamide-based polymer hydrogel filament and use thereof29 Sep 2026US 12,747,517 B2Beijing Taijieweiye Technology Co., Ltd
- Resin composition, display apparatus including the resin composition, and portable electronic device including the resin composition26 May 2026US 12,638,886 B2Dongjin Semichem Co., Ltd.
- Polyelectrolyte hydrogel coating with strong substrate binding performance and method of manufacturing the same27 Jan 2026US 12,534,549 B2Zhejiang University
- Amphipols27 Jan 2026US 12,534,550 B2Centre National De La Recherche Scientifique
- Device and methods to actively control the production of multi-stage polymer production13 Jan 2026US 12,522,674 B2Yokogawa Fluence Analytics, Inc.
- Carbon fiber precursor fiber bundle, thermally-stabilized fiber bundle, production method thereof, and method for producing carbon fiber bundle24 Sep 2026US 2026/0286575 A1Kabushiki Kaisha Toyota Chuo Kenkyusho
- Coated device and method for manufacturing same6 Aug 2026US 2026/0226285 A1Toray Industries, Inc.
- Amide Activation Approach to the Post-Polymerization Modification of Poly(meth)acrylamides11 Jun 2026US 2026/0159617 A1University of Kansas
- Rapid 3d printing of aerogels with bioinspired surface structures for solar steam generation4 Jun 2026US 2026/0152658 A1
- Reactive gel material for sustained water-based reactions19 Feb 2026US 2026/0049219 A1Everbond Interface Technologies, Inc.
Most cited
By later US patents
- Polymer particles95US 9,688,788 B2Terumo Kabushiki Kaisha · 2017
- Process for preparation of electrophoresis gel material41US 4,790,919 AE. I. Du Pont de Nemours and Company · 1988
- Method for producing acrylamide polymers29US 4,154,910 AKyoritsu Yuki Co., Ltd. · 1979
- Methacrylate and acrylate polymers and processes for making same28US 6,221,991 B1FMC Corporation · 2001
- Polyacrylamide and polyacrylic acid polymers27US 4,622,356 AAmerican Cyanamid Company · 1986