C09K 19/3885
Polyurethanes
Official title: {Polyurethanes}
C09K19/3885 (Polyurethanes) appears on 9 US grants and 7 published applications in this corpus.
Search patents in C09K- Granted patents
- 9
- Published applications
- 7
- Assignees
- 8
- Inventors
- 25
- Latest grant
- 5 Jan 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 4 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Polymerizable composition including polymerizable liquid crystal compound, film, and method of manufacturing film5 Jan 2021US 10,883,048 B2FUJIFILM Corporation
- Liquid crystal composition, liquid crystal cured layer, and method for producing said liquid crystal cured layer2 Jun 2020US 10,669,482 B2Zeon Corporation
- Liquid crystalline polyurethane elastomer and method for producing same26 Dec 2017US 9,850,339 B2Toyo Tire & Rubber Co., Ltd.
- Resin-type lightguide plate composition, backlight unit including lightguide plate formed using the composition, and liquid crystal display including the backlight unit27 Nov 2012US 8,319,913 B2Dongwoo Fine-Chem Co., Ltd.
- Liquid-crystalline polyurethanes, compositions of said liquid-crystalline polyurethanes, and a device for optical data storage comprising a liquid-crystalline polyurethane7 Mar 1995US 5,395,910 AAkzo Nobel N. V.
- Liquid crystal composition, liquid crystal cured layer, and method for producing said liquid crystal cured layer28 Mar 2019US 2019/0093014 A1Zeon Corporation
- Thermoresponsive material, method for producing thermoresponsive material, and heat control device13 Dec 2018US 2018/0356167 A1Toyo Tire & Rubber Co., Ltd.
- Thermoresponsive material, and heat control device and fiber using thermoresponsive material1 Nov 2018US 2018/0312758 A1Toyo Tire & Rubber Co., Ltd.
- Polymerizable composition including polymerizable liquid crystal compound, film, and method of manufacturing film28 Jun 2018US 2018/0179445 A1FUJIFILM Corporation
- Liquid-crystal urethane compound, thermally responsive liquid-crystal polyurethane elastomer, and production method therefor21 Jun 2018US 2018/0171233 A1Toyo Tire & Rubber Co., Ltd.
Most cited
By later US patents
- Organic polymers containing dispersed liquid crystalline filler polymers62US 4,798,849 AThe Dow Chemical Company · 1989
- Polyurethanes prepared from liquid crystal-containing polyols60US 4,745,135 AThe Dow Chemical Company · 1988
- Linear polyurethane elastomers, and a process for the preparation thereof32US 4,791,187 ABayer Akteingesellschaft · 1988
- Nonlinearly optically active polymers10US 5,189,134 ARhone-Poulenc Chimie · 1993
- Liquid-crystalline polyurethanes, compositions of said liquid-crystalline polyurethanes, and a device for optical data storage comprising a liquid-crystalline polyurethane3US 5,395,910 AAkzo Nobel N. V. · 1995