C08F 20/52
Amides or imides
C08F20/52 (Amides or imides) appears on 566 US grants and 358 published applications in this corpus.
Search patents in C08F- Granted patents
- 566
- Published applications
- 358
- Assignees
- 368
- Inventors
- 1,429
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 21 | 0 |
| 1977 | 15 | 0 |
| 1978 | 15 | 0 |
| 1979 | 11 | 0 |
| 1980 | 7 | 0 |
| 1981 | 13 | 0 |
| 1982 | 7 | 0 |
| 1983 | 5 | 0 |
| 1984 | 10 | 0 |
| 1985 | 9 | 0 |
| 1986 | 12 | 0 |
| 1987 | 6 | 0 |
| 1988 | 8 | 0 |
| 1989 | 13 | 0 |
| 1990 | 20 | 0 |
| 1991 | 13 | 0 |
| 1992 | 12 | 0 |
| 1993 | 15 | 0 |
| 1994 | 18 | 0 |
| 1995 | 13 | 0 |
| 1996 | 12 | 0 |
| 1997 | 16 | 0 |
| 1998 | 10 | 0 |
| 1999 | 14 | 0 |
| 2000 | 10 | 0 |
| 2001 | 7 | 0 |
| 2002 | 5 | 5 |
| 2003 | 1 | 6 |
| 2004 | 7 | 15 |
| 2005 | 7 | 11 |
| 2006 | 6 | 5 |
| 2007 | 7 | 3 |
| 2008 | 2 | 6 |
| 2009 | 4 | 2 |
| 2010 | 2 | 9 |
| 2011 | 4 | 6 |
| 2012 | 6 | 13 |
| 2013 | 4 | 14 |
| 2014 | 9 | 7 |
| 2015 | 9 | 13 |
| 2016 | 8 | 11 |
| 2017 | 9 | 20 |
| 2018 | 9 | 33 |
| 2019 | 22 | 39 |
| 2020 | 26 | 40 |
| 2021 | 28 | 22 |
| 2022 | 22 | 18 |
| 2023 | 23 | 23 |
| 2024 | 16 | 14 |
| 2025 | 9 | 8 |
| 2026 | 9 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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
- Polymer of 2-acrylamido-2-methylpropane sulphonic acid and use thereof30 Jun 2026US 12,668,648 B2Snf Group
- 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.
- Actinic ray-sensitive or radiation-sensitive resin composition, actinic ray-sensitive or radiation-sensitive film, pattern forming method, and method for manufacturing electronic device5 May 2026US 12,619,147 B2FUJIFILM Corporation
- Polyelectrolyte hydrogel coating with strong substrate binding performance and method of manufacturing the same27 Jan 2026US 12,534,549 B2Zhejiang University
- 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
- Method for treating a suspension of solid particles in water using a polymer in a crystalline form of 2-acrylamido-2-methylpropanesulphonic acid sodium salt27 Aug 2026US 2026/0250162 A1Snf Group
- Coated device and method for manufacturing same6 Aug 2026US 2026/0226285 A1Toray Industries, Inc.
- Resist composition, resist pattern formation method, compound, and polymer compound6 Aug 2026US 2026/0227696 A1Tokyo Ohka Kogyo.Co., Ltd.
- Liquid crystal composition, light absorption anisotropic film, laminate, image display device, and polymer2 Jul 2026US 2026/0184994 A1FUJIFILM Corporation
Most cited
By later US patents
- Polymers of N-acryloylmorpholine activated at one end and conjugates with bioactive materials and surfaces225US 5,629,384 AConsiglio Nazionale Delle Ricerche · 1997
- Acrylamido functional disubstituted acetyl aryl ketone photoinitiators213US 5,506,279 AMinnesota Mining and Manufacturing Company · 1996
- Methods for capture and selective release of nucleic acids using weakly basic polymer and amplification of same124US 5,582,988 AJohnson & Johnson Clinical Diagnostics, Inc. · 1996
- Electrically conductive adhesive hydrogels108US 5,800,685 ACardiotronics Systems, Inc. · 1998
- Polymer particles95US 9,688,788 B2Terumo Kabushiki Kaisha · 2017