C09K 11/7729
Chalcogenides
Official title: {Chalcogenides}
C09K11/7729 (Chalcogenides) appears on 459 US grants and 466 published applications in this corpus.
Search patents in C09K- Granted patents
- 459
- Published applications
- 466
- Assignees
- 199
- Inventors
- 852
- Latest grant
- 20 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 10 | 0 |
| 1991 | 7 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 10 | 0 |
| 2001 | 10 | 4 |
| 2002 | 9 | 18 |
| 2003 | 18 | 19 |
| 2004 | 17 | 40 |
| 2005 | 11 | 39 |
| 2006 | 25 | 35 |
| 2007 | 18 | 42 |
| 2008 | 19 | 41 |
| 2009 | 30 | 26 |
| 2010 | 32 | 25 |
| 2011 | 26 | 25 |
| 2012 | 24 | 17 |
| 2013 | 20 | 27 |
| 2014 | 19 | 22 |
| 2015 | 17 | 14 |
| 2016 | 17 | 11 |
| 2017 | 13 | 9 |
| 2018 | 14 | 6 |
| 2019 | 8 | 10 |
| 2020 | 8 | 9 |
| 2021 | 10 | 4 |
| 2022 | 6 | 5 |
| 2023 | 9 | 9 |
| 2024 | 4 | 4 |
| 2025 | 4 | 4 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Photoelectric conversion element and solar cell20 May 2025US 12,310,142 B2Kabushiki Kaisha Toshiba
- High brightness light source comprising a blue laser pumping a green yellow phosphor and a yellow orange superluminescent diode pumping a red phosphor29 Apr 2025US 12,287,087 B2Signify Holding B. V.
- Crystal of europium compound and method for producing crystal of europium compound15 Apr 2025US 12,276,039 B2Kabushiki Kaisha Ohara
- LED lighting apparatus having improved color rendering and LED filament4 Feb 2025US 12,218,290 B2Seoul Semiconductor Co., Ltd.
- Phosphor powder and light emitting device11 Jun 2024US 12,006,459 B2Denka Company Limited
- Wavelength downconverters28 May 2026US 2026/0146142 A1
- Phosphor powder, phosphor-containing composition, light-emitting element, and light-emitting device26 Jun 2025US 2025/0207022 A1Mitsui Mining & Smelting Co., Ltd.
- Phosphor and method for producing same5 Jun 2025US 2025/0179358 A1Mitsui Mining & Smelting Co., Ltd.
- Led lighting apparatus having improved color rendering and led filament15 May 2025US 2025/0160071 A1Seoul Semiconductor Co., Ltd.
- High brightness light source comprising a blue laser pumping a green yellow phosphor and a yellow orange superluminescent diode pumping a red phosphor6 Mar 2025US 2025/0075881 A1Signify Holding B. V.
Most cited
By later US patents
- White light emitting device and white light source module using the same488US 7,959,312 B2Samsung LED Co., Ltd. · 2011
- Light emitting device with phosphor composition440US 6,252,254 B1General Electric Company · 2001
- Wavelength converted semiconductor light emitting devices252US 7,250,715 B2Philips Lumileds Lighting Company, LLC · 2007
- Tri-color, white light LED lamps196US 6,686,691 B1Lumileds Lighting U.S., LLC · 2004
- Phosphor converted light emitting diode190US 6,417,019 B1Lumileds Lighting U.S., LLC · 2002