C09K 2019/327
Containing a spiro ring system
Official title: {containing a spiro ring system}
C09K2019/327 (Containing a spiro ring system) appears on 35 US grants and 26 published applications in this corpus.
Search patents in C09K- Granted patents
- 35
- Published applications
- 26
- Assignees
- 13
- Inventors
- 60
- Latest grant
- 26 Mar 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 1 |
| 2004 | 2 | 1 |
| 2005 | 0 | 2 |
| 2006 | 1 | 4 |
| 2007 | 1 | 1 |
| 2008 | 4 | 4 |
| 2009 | 2 | 3 |
| 2010 | 4 | 4 |
| 2011 | 4 | 0 |
| 2012 | 2 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 2 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 1 | 2 |
| 2023 | 0 | 0 |
| 2024 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
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- Liquid-crystalline medium18 May 2021US 11,008,515 B2Merck Patent GmbH
- Switch element comprising a liquid-crystalline medium11 Apr 2017US 9,617,473 B2Merck Patent GmbH
- Liquid-crystalline medium13 Oct 2022US 2022/0325180 A1Merck Patent GmbH
- Liquid-crystalline medium13 Oct 2022US 2022/0325181 A1Merck Patent GmbH
- Polymerizable liquid crystal composition, optically anisotropic film, optical film, polarizing plate, image display device, and organic electroluminescent display device12 Sep 2019US 2019/0276742 A1FUJIFILM Corporation
- Liquid-crystalline medium30 May 2019US 2019/0161679 A1Merck Patent GmbH
- Switch element comprising a liquid-crystalline medium20 Jun 2013US 2013/0155338 A1Merck Patent GmbH
Most cited
By later US patents
- Cyclobutane benzene derivatives10US 5,445,764 AMerck Patent GmbH · 1995
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- Aromatic compounds, and their use in liquid-crystalline mixtures9US 5,626,791 AHoechst Aktiengesellschaft · 1997
- Benzochromene derivatives9US 7,326,447 B2Merck Patent GmbH · 2008