C09K 11/7784
Chalcogenides
Official title: {Chalcogenides}
C09K11/7784 (Chalcogenides) appears on 548 US grants and 499 published applications in this corpus.
Search patents in C09K- Granted patents
- 548
- Published applications
- 499
- Assignees
- 250
- Inventors
- 1,251
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 6 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 6 | 0 |
| 1990 | 14 | 0 |
| 1991 | 11 | 0 |
| 1992 | 11 | 0 |
| 1993 | 8 | 0 |
| 1994 | 6 | 0 |
| 1995 | 11 | 0 |
| 1996 | 12 | 0 |
| 1997 | 8 | 0 |
| 1998 | 8 | 0 |
| 1999 | 6 | 0 |
| 2000 | 17 | 0 |
| 2001 | 12 | 11 |
| 2002 | 8 | 17 |
| 2003 | 25 | 24 |
| 2004 | 19 | 43 |
| 2005 | 21 | 45 |
| 2006 | 30 | 44 |
| 2007 | 22 | 49 |
| 2008 | 22 | 34 |
| 2009 | 24 | 49 |
| 2010 | 26 | 39 |
| 2011 | 24 | 18 |
| 2012 | 32 | 20 |
| 2013 | 20 | 39 |
| 2014 | 25 | 13 |
| 2015 | 20 | 9 |
| 2016 | 7 | 7 |
| 2017 | 5 | 5 |
| 2018 | 5 | 3 |
| 2019 | 5 | 6 |
| 2020 | 6 | 5 |
| 2021 | 5 | 6 |
| 2022 | 5 | 2 |
| 2023 | 8 | 8 |
| 2024 | 1 | 0 |
| 2025 | 3 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Y2O3:RE nanoparticles28 Jul 2026US 12,692,438 B2Seaborough Materials IP B.V.
- Red-luminescent phosphor with long afterglow and fabrication method thereof14 Apr 2026US 12,600,906 B2Nano and Advanced Materials Institute Limited
- Photoexcitation-free temperature sensing material, preparation method and temperature sensing method30 Sep 2025US 12,429,387 B2Xiamen University
- Photonic markers enabling temperature sensing and/or security marking using low frame rate cameras2 Sep 2025US 12,405,174 B2Karlsruher Institute für Technologie
- Rare earth oxide nanosheet composite modified by organic ligand, preparation method and OLED luminescent film27 May 2025US 12,312,520 B2China National Lighting Fitting Quality Inspection and Testing Centre (CLTC)
- Phosphor, light emitting device, lighting device, image display device, and indicator lamp for vehicles8 Oct 2026US 2026/0314126 A1Mitsubishi Chemical Corporation
- More efficient photoluminescent material26 Jun 2025US 2025/0207018 A1The Swatch Group Research and Development Ltd
- Microjet reactor based synthesis of nanophosphors13 Feb 2025US 2025/0051642 A1Seaborough IP I B.V.
- X-ray detecting film, methods of fabrication and uses thereof12 Oct 2023US 2023/0324784 A1Fuzhou University
- Y2o3:re nanoparticles21 Sep 2023US 2023/0295498 A1Seaborough IP I B.V.
Most cited
By later US patents
- Light sources with nanometer-sized VUV radiation-absorbing phosphors490US 6,982,046 B2General Electric Company · 2006
- Light emitting device with phosphor composition440US 6,252,254 B1General Electric Company · 2001
- Light-emitting device having light-reflective layer formed with, or/and adjacent to, material that enhances device performance211US 6,630,786 B2Candescent Intellectual Property Services, Inc. · 2003
- Long persistence red phosphors and method of making146US 6,419,854 B1Sarnoff Corporation · 2002
- Oxygen-containing phosphor powders, methods for making phosphor powders and devices incorporating same135US 6,180,029 B2Superior MicroPowders LLC · 2001