C09K 2019/0414
Containing a heterocyclic ring
Official title: {containing a heterocyclic ring}
C09K2019/0414 (Containing a heterocyclic ring) appears on 36 US grants and 32 published applications in this corpus.
Search patents in C09K- Granted patents
- 36
- Published applications
- 32
- Assignees
- 19
- Inventors
- 129
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 4 |
| 2016 | 2 | 1 |
| 2017 | 2 | 0 |
| 2018 | 1 | 5 |
| 2019 | 5 | 3 |
| 2020 | 1 | 1 |
| 2021 | 5 | 1 |
| 2022 | 1 | 7 |
| 2023 | 2 | 2 |
| 2024 | 2 | 1 |
| 2025 | 1 | 1 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polymerisable liquid crystal material and polymerised liquid crystal film21 Jul 2026US 12,686,820 B2Merck Patent GmbH
- Methods for controlling the phase of self-assembled ionic liquid crystal (ILC) structures2 Jun 2026US 12,644,051 B2Tokyo Electron Limited
- Liquid-crystalline medium12 May 2026US 12,624,289 B2Merck Patent GmbH
- Optically anisotropic layer, optical film, polarizing plate, and image display device28 Apr 2026US 12,612,553 B2FUJIFILM Corporation
- Polymerisable liquid crystal material and polymerised liquid crystal film7 Jan 2025US 12,187,946 B2Merck Patent GmbH
- Polymerizable compound and use thereof2 Apr 2026US 2026/0092214 A1Beijing Bayi Space Lcd Technology Co., Ltd
- Methods for controlling the phase of self-assembled ionic liquid crystal (ilc) structures4 Dec 2025US 2025/0368898 A1Tokyo Electron Limited
- Liquid-crystalline medium11 Jul 2024US 2024/0228877 A1Merck Patent GmbH
- Liquid-crystalline medium12 Oct 2023US 2023/0323207 A1Merck Patent GmbH
- Liquid-crystalline medium and liquid-crystal display comprising the same9 Feb 2023US 2023/0045269 A1Merck Patent GmbH
Most cited
By later US patents
- Electro-optical liquid crystal display24US 5,993,691 AMerck Patent Gesellschaft mit · 1999
- Electro-optical liquid-crystal display20US 6,146,720 AMerck Patent Gesellschaft mit · 2000
- Hydrogen-bonded liquid crystal complexes14US 5,139,696 ACornell Research Foundation, Inc. · 1992
- Polymerizable compound, polymerizable composition, polymer, optically anisotropic body, and method for producing polymerizable compound8US 9,586,917 B2Zeon Corporation · 2017
- Electro-optical liquid-crystal6US 6,342,279 B12002