C09K 11/681
Chalcogenides
Official title: {Chalcogenides}
C09K11/681 (Chalcogenides) appears on 67 US grants and 88 published applications in this corpus.
Search patents in C09K- Granted patents
- 67
- Published applications
- 88
- Assignees
- 64
- Inventors
- 200
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 2 | 3 |
| 2005 | 0 | 4 |
| 2006 | 2 | 6 |
| 2007 | 4 | 5 |
| 2008 | 3 | 2 |
| 2009 | 4 | 4 |
| 2010 | 2 | 0 |
| 2011 | 0 | 1 |
| 2012 | 2 | 3 |
| 2013 | 0 | 4 |
| 2014 | 5 | 0 |
| 2015 | 1 | 3 |
| 2016 | 1 | 1 |
| 2017 | 2 | 2 |
| 2018 | 2 | 6 |
| 2019 | 2 | 3 |
| 2020 | 4 | 4 |
| 2021 | 4 | 5 |
| 2022 | 2 | 7 |
| 2023 | 4 | 7 |
| 2024 | 8 | 8 |
| 2025 | 1 | 6 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Oxide fluorescent material, light emitting device, and method for producing oxide fluorescent material28 Apr 2026US 12,612,549 B2Nichia Corporation
- Oxide fluorescent material and light emitting device17 Feb 2026US 12,557,447 B2Nichia Corporation
- Phosphor, light source using same, biochemical analysis device, and method for producing phosphor10 Feb 2026US 12,545,837 B2Hitachi High-Tech Corporation
- Luminophore, method for producing a luminophore and radiation-emitting component23 Dec 2025US 12,503,647 B2ams-OSRAM International GmbH
- Manganese-doped red luminescent material and conversion LED26 Nov 2024US 12,152,185 B2OSRAM Opto Semiconductors GmbH
- Near-infrared light emitting device, spectroscopic apparatus, and spectroscopy6 Aug 2026US 2026/0227327 A1Panasonic Intellectual Property Management Co., Ltd.
- Method and system for enhancing growth of chalcogen films25 Jun 2026US 2026/0176793 A1
- Liquid-phase alloy catalyst, method of manufacturing same and two-dimensional chalcogenide thin film comprising thermodynamically induced grain boundary in monolayer crystal using same9 Oct 2025US 2025/0312780 A1Postech Research and Business Development Foundation
- Oxide phosphor, light emitting device, and method for producing oxide phosphor28 Aug 2025US 2025/0275312 A1Nichia Corporation
- Composite film, preparation method thereof and light-emitting device26 Jun 2025US 2025/0212594 A1Tcl Technology Group Corporation
Most cited
By later US patents
- Fluorescent material and light-emitting device83US 8,169,131 B2Nichia Corporation · 2012
- Doped cadmium tungstate scintillator with improved radiation hardness51US 7,279,120 B2Intematix Corporation · 2007
- Processes for oxide based phosphors40US 5,965,192 AAdvanced Vision Technologies, Inc. · 1999
- Synthesis of nanoparticles33US 7,241,399 B2Centrum fuer Angewandte Nanotechnologie (CAN) GmbH · 2007
- Optimized phosphor system for improved efficacy lighting sources18US 7,119,488 B2GELcore, LLC · 2006