C09K 2019/3433
Seven-membered ring with oxygen in fused, bridged or spiro ring systems
Official title: {Seven-membered ring with oxygen(s) in fused, bridged or spiro ring systems}
C09K2019/3433 (Seven-membered ring with oxygen in fused, bridged or spiro ring systems) appears on 20 US grants and 19 published applications in this corpus.
Search patents in C09K- Granted patents
- 20
- Published applications
- 19
- Assignees
- 14
- Inventors
- 55
- Latest grant
- 29 Mar 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2003 | 1 | 1 |
| 2004 | 0 | 3 |
| 2005 | 2 | 0 |
| 2006 | 1 | 1 |
| 2007 | 1 | 1 |
| 2008 | 2 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 2 | 1 |
| 2014 | 2 | 1 |
| 2015 | 0 | 2 |
| 2016 | 2 | 1 |
| 2017 | 1 | 1 |
| 2018 | 2 | 1 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 1 | 0 |
By publication year.
Recent patents
- Method for producing reflective layer, and reflective layer29 Mar 2022US 11,287,555 B2FUJIFILM Corporation
- Chiral compounds20 Apr 2021US 10,982,149 B2Merck Patent GmbH
- Composition including compound having mesogenic group, polymer and optically anisotropic body obtained by polymerizing polymerizable composition, and phase difference film12 May 2020US 10,649,124 B2DIC Corporation
- Method of preparing a birefringent polymer film16 Oct 2018US 10,100,253 B2Merck Patent GmbH
- Composition, light reflecting film, luminance-improving film, backlight unit, and liquid crystal display device26 Jun 2018US 10,007,042 B2FUJIFILM Corporation
- Method for producing reflective layer, and reflective layer9 Apr 2020US 2020/0110202 A1FUJIFILM Corporation
- Composition including compound having mesogenic group, polymer and optically anisotropic body obtained by polymerizing polymerizable composition, and phase difference film24 Jan 2019US 2019/0025490 A1DIC Corporation
- Chiral compounds11 Oct 2018US 2018/0291271 A1Merck Patent GmbH
- Composition, light reflecting film, luminance-improving film, backlight unit, and liquid crystal display device12 Jan 2017US 2017/0010398 A1FUJIFILM Corporation
- Method of preparing a birefringent polymer film25 Aug 2016US 2016/0244671 A1Merck Patent GmbH
Most cited
By later US patents
- Chiral compounds12US 7,425,356 B2Merck Patent GmbH · 2008
- Chiral compounds8US 7,223,450 B2Merck & Co., Inc. · 2007
- Method for producing cyclic carboxylic orthoester fluorides and corresponding compounds6US 6,916,940 B2Merck Patent GmbH · 2005
- Process for the preparation of compounds having a CF2O bridge6US 7,385,067 B2Merck Patent GmbH · 2008
- Optically active compound, photoreactive chiral agent, liquid crystal composition, method for changing helical structure of liquid crystal, method for fixing helical structure of liquid crystal, liquid crystal color filter, optical film, and recording medium5US 6,610,216 B2Fuji Photo Film Co., Ltd. · 2003