C09K 11/661
Chalcogenides
Official title: {Chalcogenides}
C09K11/661 (Chalcogenides) appears on 184 US grants and 225 published applications in this corpus.
Search patents in C09K- Granted patents
- 184
- Published applications
- 225
- Assignees
- 140
- Inventors
- 561
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 2 |
| 2002 | 4 | 4 |
| 2003 | 8 | 2 |
| 2004 | 2 | 14 |
| 2005 | 2 | 10 |
| 2006 | 11 | 11 |
| 2007 | 5 | 13 |
| 2008 | 6 | 5 |
| 2009 | 8 | 14 |
| 2010 | 1 | 4 |
| 2011 | 5 | 7 |
| 2012 | 9 | 7 |
| 2013 | 5 | 8 |
| 2014 | 7 | 3 |
| 2015 | 5 | 5 |
| 2016 | 4 | 12 |
| 2017 | 5 | 11 |
| 2018 | 5 | 9 |
| 2019 | 11 | 7 |
| 2020 | 12 | 15 |
| 2021 | 9 | 9 |
| 2022 | 10 | 19 |
| 2023 | 5 | 15 |
| 2024 | 8 | 9 |
| 2025 | 12 | 9 |
| 2026 | 7 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Lead sulfide nanocrystals, preparation method and uses therof25 Aug 2026US 12,715,780 B2Quantum Science Ltd
- Light emitting element and manufacturing method thereof25 Aug 2026US 12,716,025 B2Samsung Display Co., Ltd.
- Quantum dots material solution, method of forming quantum dots layer, and array substrate, display panel, and method of fabricating display panel14 Jul 2026US 12,680,020 B2Beijing BOE Technology Development Co., Ltd.
- Macromolecular ammonium and guanidinium halides for tuning color of perovskite nanocrystals2 Jun 2026US 12,644,047 B2University of Massachusetts
- Light emitting element and manufacturing method thereof5 May 2026US 12,618,005 B2Samsung Display Co., Ltd.
- Production method of a wide-area nanocrystal film23 Jul 2026US 2026/0209450 A1Bilkent Universitesi Ulusal Nanoteknoloji Arastirma Merkezi
- Copper doped lead sulfide crystals and related optoelectronic devices11 Dec 2025US 2025/0376623 A1The Government of the United States of America, as represented by the Secretary of the Navy
- Preparation method of core-shell quantum dots2 Oct 2025US 2025/0304855 A1Tianjin University
- Quantum dot, preparation method for quantum dot, and photoelectric device3 Jul 2025US 2025/0215316 A1Tcl Technology Group Corporation
- Nanocrystals12 Jun 2025US 2025/0187939 A1Quantum Science Ltd
Most cited
By later US patents
- Oxygen-containing phosphor powders, methods for making phosphor powders and devices incorporating same135US 6,180,029 B2Superior MicroPowders LLC · 2001
- Sulfur-containing phosphor powders, methods for making phosphor powders and devices incorporating same110US 6,153,123 ASuperior MicroPowders LLC · 2000
- Electroluminescent material, electroluminescent element and color conversion filter90US 6,656,608 B1Konica Corporation · 2003
- III-V semiconductor nanocrystal complexes and methods of making same89US 7,399,429 B2Evident Technologies · 2008
- Semiconductor nanocrystal complexes comprising a metal coating and methods of making same78US 7,482,059 B2Evident Technologies · 2009