C09K 19/3411
The heterocyclic ring being a three-membered ring
Official title: {the heterocyclic ring being a three-membered ring}
C09K19/3411 (The heterocyclic ring being a three-membered ring) appears on 73 US grants and 56 published applications in this corpus.
Search patents in C09K- Granted patents
- 73
- Published applications
- 56
- Assignees
- 38
- Inventors
- 170
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 3 |
| 2004 | 1 | 1 |
| 2005 | 1 | 5 |
| 2006 | 2 | 3 |
| 2007 | 3 | 6 |
| 2008 | 4 | 5 |
| 2009 | 4 | 1 |
| 2010 | 2 | 5 |
| 2011 | 2 | 7 |
| 2012 | 2 | 3 |
| 2013 | 11 | 0 |
| 2014 | 3 | 2 |
| 2015 | 1 | 2 |
| 2016 | 1 | 2 |
| 2017 | 1 | 2 |
| 2018 | 2 | 1 |
| 2019 | 2 | 0 |
| 2020 | 0 | 4 |
| 2021 | 2 | 2 |
| 2022 | 4 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Liquid crystal aligning agent, liquid crystal alignment film and liquid crystal display element28 Jul 2026US 12,692,440 B2Nissan Chemical Corporation
- Liquid crystal composition and liquid crystal display element19 Jul 2022US 11,390,811 B2DIC Corporation
- Liquid crystal composition and display device31 May 2022US 11,345,855 B2Boe Technology Group Co., Ltd.
- Polymerizable monomer, liquid crystal composition using polymerizable monomer, and liquid crystal display device26 Apr 2022US 11,312,906 B2DIC Corporation
- Polymerizable polar compound, liquid crystal composition and liquid crystal display device12 Apr 2022US 11,299,675 B2Jnc Corporation
- Liquid crystal aligning agent, liquid crystal alignment film and liquid crystal display element14 Aug 2025US 2025/0257265 A1Nissan Chemical Corporation
- Compound having thermotropic liquid crystalline structure, and polyethylene glycol polymer thereof27 Jun 2024US 2024/0209262 A1Kyungpook National University Industry-Academic Cooperation Foundation
- Liquid crystal composition and display device28 Oct 2021US 2021/0332296 A1Boe Technology Group Co., Ltd.
- Liquid crystal alignment agent, liquid crystal alignment film, liquid crystal element, and polymer1 Jul 2021US 2021/0198577 A1Jsr Corporation
- Liquid crystal cell and liquid crystal display17 Sep 2020US 2020/0292888 A1Sharp Kabushiki Kaisha
Most cited
By later US patents
- Polymerizable liquid-crystalline compounds47US 6,136,225 ABASF SE · 2000
- Liquid-crystalline diglycidyl compounds, the preparation of these, and the use of these in curable epoxide mixtures46US 4,764,581 ABayer Aktiengesellschaft · 1988
- Synthesis of new liquid crystal materials possessing phenylbenzoate or biphenyl core units and (2,3)-epoxyalkyloxiranemethanol chiral tails25US 4,638,073 A1987
- Additive components for liquid crystalline materials24US 8,105,662 B2Rolic AG · 2012
- Trifunctional compound, composition and polymer thereof23US 7,927,671 B2Chisso Corporation · 2011