C08F 220/34
Esters containing nitrogen
Official title: Esters containing nitrogen {, e.g. N,N-dimethylaminoethyl (meth)acrylate}
C08F220/34 (Esters containing nitrogen) appears on 910 US grants and 1,152 published applications in this corpus.
Search patents in C08F- Granted patents
- 910
- Published applications
- 1,152
- Assignees
- 561
- Inventors
- 3,206
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 7 | 0 |
| 1988 | 4 | 0 |
| 1989 | 6 | 0 |
| 1990 | 6 | 0 |
| 1991 | 9 | 0 |
| 1992 | 14 | 0 |
| 1993 | 16 | 0 |
| 1994 | 10 | 0 |
| 1995 | 8 | 0 |
| 1996 | 6 | 0 |
| 1997 | 9 | 0 |
| 1998 | 7 | 0 |
| 1999 | 6 | 0 |
| 2000 | 9 | 0 |
| 2001 | 12 | 3 |
| 2002 | 15 | 13 |
| 2003 | 7 | 15 |
| 2004 | 2 | 13 |
| 2005 | 4 | 12 |
| 2006 | 8 | 20 |
| 2007 | 5 | 21 |
| 2008 | 12 | 20 |
| 2009 | 8 | 38 |
| 2010 | 13 | 45 |
| 2011 | 23 | 40 |
| 2012 | 26 | 39 |
| 2013 | 26 | 38 |
| 2014 | 27 | 37 |
| 2015 | 37 | 47 |
| 2016 | 44 | 64 |
| 2017 | 48 | 60 |
| 2018 | 48 | 78 |
| 2019 | 45 | 72 |
| 2020 | 62 | 88 |
| 2021 | 55 | 80 |
| 2022 | 44 | 79 |
| 2023 | 55 | 87 |
| 2024 | 50 | 60 |
| 2025 | 47 | 47 |
| 2026 | 36 | 36 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Surface treatment agent for ophthalmic device29 Sep 2026US 12,747,314 B2Nof Corporation
- Polymer and preparation thereof, and electrolyte film and preparation thereof22 Sep 2026US 12,744,245 B2Contemporary Amperex Technology (Hong Kong) Limited
- Modifier for ophthalmological device25 Aug 2026US 12,715,944 B2Nof Corporation
- Resin composition18 Aug 2026US 12,709,682 B2Ajinomoto Co., Inc.
- Ketone functionalized polymers, methods of making ketone functionalized polymers, and compositions including the same18 Aug 2026US 12,709,696 B2Ennis-Flint, Inc.
- Single-stranded nucleic acid adsorption inhibitor, nucleic acid solution, and nucleic acid amplification method1 Oct 2026US 2026/0297233 A1Nof Corporation
- Enamines as initiators in the hardening of radically hardening reactive resins for chemical fastening10 Sep 2026US 2026/0265432 A1Hilti Aktiengesellschaft
- Electrically conductive adhesive10 Sep 2026US 2026/0271410 A1Henkel AG & Co. KGaA
- Fluorinated zwitterionic polymers and methods of use3 Sep 2026US 2026/0258176 A1Cornell University
- Polymers and methods for ophthalmic applications27 Aug 2026US 2026/0251820 A1Key Medical Technologies, Inc.
Most cited
By later US patents
- Polyurethane resins having multiple mechanisms of hardening for use in producing three-dimensional objects271US 9,453,142 B2Carbon3D, Inc. · 2016
- Thickened acidic aqueous compositions using cross-linked dialkylaminoacrylic microparticles202US 5,100,660 AAllied Colloids Limited · 1992
- Methods of producing three-dimensional objects from materials having multiple mechanisms of hardening165US 9,676,963 B2Carbon, Inc. · 2017
- Methods of producing polyurethane three-dimensional objects from materials having multiple mechanisms of hardening137US 9,598,606 B2Carbon, Inc. · 2017
- Process for the preparation of dispersion of water-soluble cationic polymer95US 5,006,590 AKyoritsu Yuki Co., Ltd. · 1991