C09K 19/2021
Compounds containing at least one asymmetric carbon atom
Official title: {Compounds containing at least one asymmetric carbon atom}
C09K19/2021 (Compounds containing at least one asymmetric carbon atom) appears on 363 US grants and 93 published applications in this corpus.
Search patents in C09K- Granted patents
- 363
- Published applications
- 93
- Assignees
- 126
- Inventors
- 675
- Latest grant
- 14 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 7 | 0 |
| 1987 | 9 | 0 |
| 1988 | 13 | 0 |
| 1989 | 22 | 0 |
| 1990 | 25 | 0 |
| 1991 | 27 | 0 |
| 1992 | 34 | 0 |
| 1993 | 33 | 0 |
| 1994 | 21 | 0 |
| 1995 | 18 | 0 |
| 1996 | 10 | 0 |
| 1997 | 13 | 0 |
| 1998 | 14 | 0 |
| 1999 | 14 | 0 |
| 2000 | 9 | 0 |
| 2001 | 7 | 0 |
| 2002 | 4 | 2 |
| 2003 | 4 | 4 |
| 2004 | 2 | 4 |
| 2005 | 1 | 3 |
| 2006 | 6 | 1 |
| 2007 | 1 | 2 |
| 2008 | 0 | 0 |
| 2009 | 2 | 2 |
| 2010 | 1 | 4 |
| 2011 | 1 | 2 |
| 2012 | 3 | 2 |
| 2013 | 5 | 6 |
| 2014 | 3 | 3 |
| 2015 | 4 | 6 |
| 2016 | 2 | 11 |
| 2017 | 5 | 5 |
| 2018 | 8 | 11 |
| 2019 | 4 | 3 |
| 2020 | 4 | 5 |
| 2021 | 3 | 4 |
| 2022 | 4 | 5 |
| 2023 | 5 | 4 |
| 2024 | 6 | 2 |
| 2025 | 1 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Liquid crystal composition for light-scattering liquid crystal device, light-scattering liquid crystal device, and smart window14 Jan 2025US 12,197,062 B2DIC Corporation
- Reactive mesogens10 Dec 2024US 12,162,834 B2Merck Patent GmbH
- Optically anisotropic layer, method of manufacturing the same, laminate, method of manufacturing the same, polarizing plate, liquid crystal display device, and organic EL display device3 Sep 2024US 12,078,832 B2FUJIFILM Corporation
- Polymer stabilized paraboloid liquid crystal microlenses array with integrated pancharatnam-berry phase13 Aug 2024US 12,060,513 B2Kent State University
- Polymerisable LC medium and polymer film with flat optical dispersion9 Jul 2024US 12,031,079 B2Merck Patent GmbH
- Liquid crystal composition, light absorption anisotropic film, laminate, image display device, and polymer2 Jul 2026US 2026/0184994 A1FUJIFILM Corporation
- Liquid crystal composition and display panel30 Apr 2026US 2026/0117125 A1Tcl China Star Optoelectronics Technology Co., Ltd.
- Laminate, optical element, and light guide element17 Oct 2024US 2024/0345301 A1FUJIFILM Corporation
- Ultra-high-polarity chiral liquid crystal material, liquid crystal laser and preparation method therefor18 Jan 2024US 2024/0019746 A1South China University of Technology
- Optically anisotropic layer, method of manufacturing the same, laminate, method of manufacturing the same, polarizing plate, liquid crystal display device, and organic el display device5 Oct 2023US 2023/0314680 A1FUJIFILM Corporation
Most cited
By later US patents
- Smectic liquid crystals132US 4,613,209 AAT&T Bell Laboratories · 1986
- Ferroelectric liquid crystal compounds and liquid crystal compositions112US 4,576,732 AHitachi, Ltd. · 1986
- Alignment of ferroelectric LCDs110US 4,561,726 AAT&T Bell Laboratories · 1985
- Liquid-crystalline polymer phase having a cholesteric structure, processes for its preparation and its use102US 4,293,435 ABASF SE · 1981
- Liquid crystalline compounds and mixtures thereof90US 4,596,667 AChisso Corporation · 1986