C09K 19/601
Azoic
Official title: {Azoic}
C09K19/601 (Azoic) appears on 202 US grants and 179 published applications in this corpus.
Search patents in C09K- Granted patents
- 202
- Published applications
- 179
- Assignees
- 74
- Inventors
- 462
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 6 | 0 |
| 1982 | 4 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 6 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 0 | 3 |
| 2007 | 1 | 3 |
| 2008 | 1 | 2 |
| 2009 | 2 | 2 |
| 2010 | 5 | 8 |
| 2011 | 1 | 3 |
| 2012 | 4 | 7 |
| 2013 | 4 | 6 |
| 2014 | 6 | 5 |
| 2015 | 3 | 4 |
| 2016 | 3 | 10 |
| 2017 | 8 | 14 |
| 2018 | 9 | 11 |
| 2019 | 11 | 12 |
| 2020 | 10 | 13 |
| 2021 | 7 | 10 |
| 2022 | 10 | 20 |
| 2023 | 10 | 24 |
| 2024 | 18 | 9 |
| 2025 | 11 | 8 |
| 2026 | 9 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical film, optical laminate, and image display device30 Jun 2026US 12,668,744 B2FUJIFILM Corporation
- Composition for forming polarizer, polarizer, laminate, and image display device5 May 2026US 12,619,019 B2FUJIFILM Corporation
- Device for the regulation of light transmission5 May 2026US 12,619,110 B2Merck Patent GmbH
- Composition, optically anisotropic layer, liquid crystal cell, liquid crystal display device, sensor, lens, switching element, isolator, and camera21 Apr 2026US 12,606,746 B2FUJIFILM Corporation
- Photochromic liquid crystal electrospun coaxial polymer fibers7 Apr 2026US 12,595,595 B2The Government of the United States of America, as represented by the Secretary of the Navy
- Liquid crystal composition, light absorption anisotropic film, laminate, image display device, and polymer2 Jul 2026US 2026/0184994 A1FUJIFILM Corporation
- Liquid crystal composition, optical absorption anisotropic film, method of producing optical absorption anisotropic film, optical laminate, and image display apparatus21 May 2026US 2026/0140287 A1FUJIFILM Corporation
- Liquid crystal composition for radio wave control element, and radio wave control element21 May 2026US 2026/0142380 A1FUJIFILM Corporation
- Liquid crystal dimming device20 Nov 2025US 2025/0354062 A1Jiangsu Hecheng Display Technology Co., Ltd.
- Liquid crystal composition, liquid crystal cured layer, optical film, polarizing plate, image display apparatus, and copolymer6 Nov 2025US 2025/0340780 A1FUJIFILM Corporation
Most cited
By later US patents
- Process for producing anisotropic liquid crystal layers on a substrate244US 5,247,377 ARohm GmbH Chemische Fabrik · 1993
- Dichroic azo dyes59US 5,589,100 AHercules Incorporated · 1996
- Pleochroic dyes50US 4,145,114 AThe Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland · 1979
- Asymmetric dichroic dye molecules having poly(arylazo) linking groups, a bis-substituted aryl thiazyl end group, and another end group46US 4,565,424 AMinnesota Mining and Manufacturing Company · 1986
- Heterocyclic compounds43US 4,273,929 AHoffmann-La Roche Inc. · 1981