C08F 20/34
Esters containing nitrogen
Official title: Esters containing nitrogen {, e.g. N,N-dimethylaminoethyl (meth)acrylate}
C08F20/34 (Esters containing nitrogen) appears on 571 US grants and 264 published applications in this corpus.
Search patents in C08F- Granted patents
- 571
- Published applications
- 264
- Assignees
- 319
- Inventors
- 1,341
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 15 | 0 |
| 1978 | 13 | 0 |
| 1979 | 14 | 0 |
| 1980 | 19 | 0 |
| 1981 | 23 | 0 |
| 1982 | 12 | 0 |
| 1983 | 13 | 0 |
| 1984 | 15 | 0 |
| 1985 | 14 | 0 |
| 1986 | 10 | 0 |
| 1987 | 10 | 0 |
| 1988 | 16 | 0 |
| 1989 | 21 | 0 |
| 1990 | 17 | 0 |
| 1991 | 20 | 0 |
| 1992 | 15 | 0 |
| 1993 | 16 | 0 |
| 1994 | 15 | 0 |
| 1995 | 15 | 0 |
| 1996 | 11 | 0 |
| 1997 | 26 | 0 |
| 1998 | 5 | 0 |
| 1999 | 13 | 0 |
| 2000 | 15 | 0 |
| 2001 | 17 | 3 |
| 2002 | 5 | 10 |
| 2003 | 6 | 7 |
| 2004 | 10 | 8 |
| 2005 | 4 | 4 |
| 2006 | 4 | 3 |
| 2007 | 4 | 3 |
| 2008 | 0 | 1 |
| 2009 | 1 | 3 |
| 2010 | 1 | 9 |
| 2011 | 2 | 5 |
| 2012 | 2 | 8 |
| 2013 | 6 | 6 |
| 2014 | 6 | 7 |
| 2015 | 5 | 9 |
| 2016 | 4 | 13 |
| 2017 | 11 | 19 |
| 2018 | 10 | 20 |
| 2019 | 12 | 19 |
| 2020 | 15 | 19 |
| 2021 | 14 | 20 |
| 2022 | 13 | 19 |
| 2023 | 12 | 17 |
| 2024 | 11 | 13 |
| 2025 | 13 | 11 |
| 2026 | 6 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Crystalline radical polymerizable composition for fixing a magnet of a rotating electric machine rotor core, a rotating electric machine rotor core using the composition, and a method of manufacturing the rotating electric machine rotor core6 Oct 2026US 12,756,246 B2Aisin Corporation
- Method for multicolor lithography using mechanical force14 Jul 2026US 12,679,909 B2California Institute of Technology
- 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.
- Curable composition20 Jan 2026US 12,528,893 B2Threebond Co., Ltd.
- Zwitterion compound and production method and use for same13 Jan 2026US 12,522,678 B2Tokushima University
- Method for Multicolor Lithography Using Mechanical Force8 Oct 2026US 2026/0308288 A1California Institute of Technology
- Resin composition, optical element, optical device, imaging device, cured product, and method of producing optical element3 Sep 2026US 2026/0258168 A1Canon Kabushiki Kaisha
- Radiation curable compositions for coating optical fibers27 Aug 2026US 2026/0250540 A1Covestro LLC
- Low-volatility radiation curable compositions for coating optical fibers2 Jul 2026US 2026/0184954 A1Covestro LLC
- Antifibrotic agent, pharmaceutical composition for treating fibrosis, and method for inactivating myofibroblasts7 May 2026US 2026/0124238 A1Kyushu University, National University Corporation
Most cited
By later US patents
- Ultraviolet absorbing polymers comprising 2-hydroxy-5-acrylyloxyphenyl-2H-benzotriazoles297US 4,528,311 AIolab Corporation · 1985
- Poly(ethylenically unsaturated alkoxy) heterocyclic protective coatings144US 4,262,072 AMinnesota Mining and Manufacturing Company · 1981
- Photochromic compound132US 5,166,345 AToray Industries, Inc. · 1992
- 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
- Apparatus for manufacturing profile pipes used in well construction123US 5,119,661 A1992