C09K 19/3497
The heterocyclic ring containing sulfur and nitrogen atoms
Official title: {the heterocyclic ring containing sulfur and nitrogen atoms}
C09K19/3497 (The heterocyclic ring containing sulfur and nitrogen atoms) appears on 246 US grants and 236 published applications in this corpus.
Search patents in C09K- Granted patents
- 246
- Published applications
- 236
- Assignees
- 49
- Inventors
- 483
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 14 | 0 |
| 1994 | 8 | 0 |
| 1995 | 11 | 0 |
| 1996 | 9 | 0 |
| 1997 | 6 | 0 |
| 1998 | 9 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 2 |
| 2004 | 2 | 1 |
| 2005 | 1 | 8 |
| 2006 | 2 | 2 |
| 2007 | 4 | 6 |
| 2008 | 3 | 6 |
| 2009 | 3 | 10 |
| 2010 | 6 | 7 |
| 2011 | 4 | 1 |
| 2012 | 5 | 4 |
| 2013 | 4 | 3 |
| 2014 | 1 | 1 |
| 2015 | 2 | 10 |
| 2016 | 3 | 4 |
| 2017 | 6 | 18 |
| 2018 | 5 | 29 |
| 2019 | 9 | 19 |
| 2020 | 23 | 26 |
| 2021 | 14 | 14 |
| 2022 | 14 | 20 |
| 2023 | 15 | 19 |
| 2024 | 21 | 9 |
| 2025 | 7 | 6 |
| 2026 | 9 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Composition, polarizer layer, laminate, and image displaying device28 Jul 2026US 12,692,439 B2FUJIFILM Corporation
- Polymerisable liquid crystal material and polymerised liquid crystal film21 Jul 2026US 12,686,820 B2Merck Patent GmbH
- Polymerizable liquid crystal composition, optically anisotropic layer, optical film, polarizing plate, and image display device9 Jun 2026US 12,649,878 B2FUJIFILM Corporation
- Composition for forming polarizer, polarizer, laminate, and image display device5 May 2026US 12,619,019 B2FUJIFILM Corporation
- 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
- Polymerizable liquid crystal composition8 Oct 2026US 2026/0308453 A1Rolic Technologies AG
- Radio wave control element30 Jul 2026US 2026/0218051 A1FUJIFILM Corporation
- Cured film, optical film, and image display device16 Jul 2026US 2026/0202596 A1FUJIFILM Corporation
- Liquid crystal composition, light absorption anisotropic film, laminate, image display device, and polymer2 Jul 2026US 2026/0184994 A1FUJIFILM Corporation
- Composition, optically anisotropic layer, cured film, and diffraction element30 Apr 2026US 2026/0117126 A1FUJIFILM Corporation
Most cited
By later US patents
- Alkylenedioxythiophenes and poly(alkylenedioxythiophenes) containing mesogenic groups56US 7,585,983 B2H. C. Starck GmbH · 2009
- Electro-optical materials and light modulator devices containing same44US 5,061,404 AAllied-Signal Inc. · 1991
- Reactive mesogenic benzodithiophenes42US 6,913,710 B2Merck Patent GmbH · 2005
- Matrix liquid-crystal display37US 5,384,065 AMerck Patent GmbH · 1995
- Thiadiazole derivatives, process for their preparation, and their use as precursors for the production of liquid crystals30US 5,847,149 AHoechst Aktiengesellschaft · 1998