C09K 11/881
Chalcogenides
Official title: {Chalcogenides}
C09K11/881 (Chalcogenides) appears on 1,256 US grants and 1,827 published applications in this corpus.
Search patents in C09K- Granted patents
- 1,256
- Published applications
- 1,827
- Assignees
- 457
- Inventors
- 2,541
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 0 | 0 |
| 2001 | 5 | 0 |
| 2002 | 5 | 8 |
| 2003 | 4 | 8 |
| 2004 | 6 | 13 |
| 2005 | 7 | 30 |
| 2006 | 17 | 37 |
| 2007 | 14 | 37 |
| 2008 | 16 | 42 |
| 2009 | 16 | 35 |
| 2010 | 27 | 67 |
| 2011 | 32 | 57 |
| 2012 | 38 | 45 |
| 2013 | 40 | 49 |
| 2014 | 39 | 51 |
| 2015 | 37 | 77 |
| 2016 | 50 | 73 |
| 2017 | 61 | 110 |
| 2018 | 74 | 103 |
| 2019 | 90 | 109 |
| 2020 | 65 | 122 |
| 2021 | 82 | 151 |
| 2022 | 97 | 157 |
| 2023 | 137 | 151 |
| 2024 | 110 | 128 |
| 2025 | 94 | 91 |
| 2026 | 61 | 76 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Quantum dot device and electronic device22 Sep 2026US 12,742,116 B2Samsung Display Co., Ltd.
- Electroluminescent device and semiconductor nanoparticle22 Sep 2026US 12,742,118 B2Samsung Display Co., Ltd.
- Quantum dot, forming method thereof and light-emitting device including the same25 Aug 2026US 12,716,023 B2Lextar Electronics Corporation
- Display panel and electronic apparatus including the same25 Aug 2026US 12,720,994 B2Samsung Display Co., Ltd.
- Method of preparing quantum dot, optical member including the quantum dot prepared using the method, and electronic device including the quantum dot18 Aug 2026US 12,709,709 B2Samsung Display Co., Ltd.
- Quantum dot-containing composition, wavelength conversion member, and method for manufacturing quantum dot-containing composition8 Oct 2026US 2026/0308445 A1Shin-Etsu Chemical Co., Ltd.
- Wavelength conversion sheet, backlight, and liquid crystal display device8 Oct 2026US 2026/0308447 A1Dai Nippon Printing Co.Ltd.
- Composition exhibiting narrow photoluminescence line width8 Oct 2026US 2026/0308448 A1
- Ink composition and electronic apparatus including film prepared using ink composition1 Oct 2026US 2026/0297364 A1Samsung Display Co., Ltd.
- Composition1 Oct 2026US 2026/0297423 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Highly luminescent color-selective nano-crystalline materials747US 6,322,901 B1Massachusetts Institute of Technology · 2001
- Semiconductor nanocrystal probes for biological applications and process for making and using such probes437US 6,207,392 B1The Regents of the University of California · 2001
- Highly luminescent color-selective materials and method of making thereof406US 6,207,229 B1Massachusetts Institute of Technology · 2001
- Quantum dot white and colored light emitting diodes330US 6,501,091 B1Hewlett-Packard Company · 2002
- Luminescent nanoparticles and methods for their preparation226US 6,815,064 B2Quantum Dot Corporation · 2004