C08F 220/52
Amides or imides
C08F220/52 (Amides or imides) appears on 1,969 US grants and 2,275 published applications in this corpus.
Search patents in C08F- Granted patents
- 1,969
- Published applications
- 2,275
- Assignees
- 996
- Inventors
- 5,648
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 14 | 0 |
| 1978 | 8 | 0 |
| 1979 | 10 | 0 |
| 1980 | 13 | 0 |
| 1981 | 13 | 0 |
| 1982 | 9 | 0 |
| 1983 | 7 | 0 |
| 1984 | 21 | 0 |
| 1985 | 27 | 0 |
| 1986 | 14 | 0 |
| 1987 | 14 | 0 |
| 1988 | 26 | 0 |
| 1989 | 16 | 0 |
| 1990 | 17 | 0 |
| 1991 | 32 | 0 |
| 1992 | 31 | 0 |
| 1993 | 16 | 0 |
| 1994 | 18 | 0 |
| 1995 | 11 | 0 |
| 1996 | 11 | 0 |
| 1997 | 24 | 0 |
| 1998 | 14 | 0 |
| 1999 | 22 | 0 |
| 2000 | 21 | 0 |
| 2001 | 23 | 9 |
| 2002 | 29 | 13 |
| 2003 | 17 | 27 |
| 2004 | 22 | 33 |
| 2005 | 15 | 34 |
| 2006 | 15 | 50 |
| 2007 | 21 | 54 |
| 2008 | 21 | 49 |
| 2009 | 15 | 57 |
| 2010 | 33 | 75 |
| 2011 | 47 | 84 |
| 2012 | 43 | 77 |
| 2013 | 43 | 82 |
| 2014 | 66 | 88 |
| 2015 | 73 | 90 |
| 2016 | 89 | 118 |
| 2017 | 70 | 110 |
| 2018 | 88 | 144 |
| 2019 | 108 | 157 |
| 2020 | 109 | 183 |
| 2021 | 130 | 174 |
| 2022 | 98 | 154 |
| 2023 | 125 | 138 |
| 2024 | 112 | 118 |
| 2025 | 93 | 100 |
| 2026 | 49 | 57 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Uncharged clay blocking agent6 Oct 2026US 12,753,119 B2BASF SE
- Contaminant remediation with functionalized (meth)acrylic polymer or copolymer macroparticulates and systems related thereto6 Oct 2026US 12,753,257 B2Countertrace LLC
- Acrylic rubber, rubber composition and rubber crosslinked product6 Oct 2026US 12,753,258 B2Zeon Corporation
- Method of preparing aldehyde-functionalized polymers29 Sep 2026US 12,747,307 B2Ecolab USA Inc.
- Polymer and preparation thereof, and electrolyte film and preparation thereof22 Sep 2026US 12,744,245 B2Contemporary Amperex Technology (Hong Kong) Limited
- Halogenated Xanthene-Containing Topical Anti-Gram-Positive Bacterial Ophthalmic Composition and Method8 Oct 2026US 2026/0306444 A1Provectus Pharmatech, Inc.
- The method of obtaining polyacrylamide hydrogels through continuous frontal polymerization8 Oct 2026US 2026/0307050 A1Green Evolution Technologies, Inc.
- Hydroxyl-modified binder and preparation method thereof, and secondary battery8 Oct 2026US 2026/0312057 A1Ningde Amperex Technology Limited
- Ultra-high molecular weight polymers and methods of using the same1 Oct 2026US 2026/0297319 A1
- Cleavable polymer drug conjugates24 Sep 2026US 2026/0284196 A1Rs Arastirma Egitim Danismanlik Ilac Sanayi Ticaret Anonim Sirketi
Most cited
By later US patents
- Water-swellable copolymers and articles and coatings made therefrom1,443US 7,935,773 B2Tyco Healthcare Group LP · 2011
- Long wearable soft contact lens322US 6,867,245 B2Asahikasei Aime Co., Ltd · 2005
- Dimethylacrylamide-copolymer hydrogels with high oxygen permeability290US 4,954,587 ACiba-Geigy Corporation · 1990
- Hydrogels having enhanced elasticity and mechanical strength properties280US 6,960,617 B2Purdue Research Foundation · 2005
- Compositions, methods, and systems for bead formation using improved polymers188US 10,590,244 B210x Genomics, Inc. · 2020