C09K 19/542
Macromolecular compounds
Official title: {Macromolecular compounds}
C09K19/542 (Macromolecular compounds) appears on 934 US grants and 877 published applications in this corpus.
Search patents in C09K- Granted patents
- 934
- Published applications
- 877
- Assignees
- 322
- Inventors
- 1,761
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 6 | 0 |
| 1987 | 8 | 0 |
| 1988 | 2 | 0 |
| 1989 | 14 | 0 |
| 1990 | 9 | 0 |
| 1991 | 10 | 0 |
| 1992 | 18 | 0 |
| 1993 | 23 | 0 |
| 1994 | 26 | 0 |
| 1995 | 27 | 0 |
| 1996 | 28 | 0 |
| 1997 | 28 | 0 |
| 1998 | 22 | 0 |
| 1999 | 13 | 0 |
| 2000 | 19 | 0 |
| 2001 | 21 | 5 |
| 2002 | 13 | 14 |
| 2003 | 16 | 16 |
| 2004 | 19 | 16 |
| 2005 | 8 | 14 |
| 2006 | 12 | 21 |
| 2007 | 11 | 12 |
| 2008 | 12 | 19 |
| 2009 | 14 | 24 |
| 2010 | 19 | 27 |
| 2011 | 16 | 31 |
| 2012 | 20 | 25 |
| 2013 | 27 | 38 |
| 2014 | 21 | 49 |
| 2015 | 39 | 75 |
| 2016 | 41 | 78 |
| 2017 | 47 | 62 |
| 2018 | 42 | 62 |
| 2019 | 48 | 76 |
| 2020 | 51 | 36 |
| 2021 | 42 | 35 |
| 2022 | 34 | 38 |
| 2023 | 23 | 38 |
| 2024 | 28 | 25 |
| 2025 | 31 | 28 |
| 2026 | 18 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Liquid crystal composition and display panel29 Sep 2026US 12,747,393 B2Tcl China Star Optoelectronics Technology Co., Ltd.
- Liquid-crystal medium15 Sep 2026US 12,735,641 B2Merck Patent GmbH
- Optical laminate, polarizing plate, and image device display15 Sep 2026US 12,736,729 B2FUJIFILM Corporation
- Liquid crystal elastomer compositions and methods of making the same18 Aug 2026US 12,709,711 B2The Regents of the University of Colorado, a body corporate
- Polymerizable liquid crystal material and polymerized liquid crystal film2 Jun 2026US 12,644,050 B2Merck Patent GmbH
- Polymer dispersed liquid crystal film and method of producing the same1 Oct 2026US 2026/0299348 A1Nitto Denko Corporation
- Liquid crystal composition, light absorption anisotropic film, laminate, and image display device24 Sep 2026US 2026/0286224 A1FUJIFILM Corporation
- Light control sheet and vehicle window27 Aug 2026US 2026/0250576 A1Toppan Holdings Inc.
- Innovative photomobile polymer, method for preparing said photomobile polymer without rubbing, 3d printing method of said photomobile polymer and 3d printer to implement said 3d printing method20 Aug 2026US 2026/0241637 A1Consiglio Nazionale Delle Ricerche
- Film, polarizing plate, and image display device20 Aug 2026US 2026/0242667 A1FUJIFILM Corporation
Most cited
By later US patents
- Light modulating material comprising a liquid crystal dispersion in a plastic matrix449US 4,688,900 AKent State University · 1987
- Encapsulated liquid crystal and method389US 4,435,047 AManchester R & D Partnership · 1984
- Liquid crystalline-plastic material having submillisecond switch times and extended memory276US 4,671,618 A1987
- Liquid crystalline light modulating device and material273US 5,437,811 AKent State University · 1995
- Switchable volume hologram materials and devices234US 5,942,157 AScience Applications International Corporation · 1999