C01B 19/00
Selenium
Official title: Selenium; Tellurium; Compounds thereof (phosphorus compounds C01B25/14)
C01B19/00 (Selenium) appears on 958 US grants and 1,031 published applications in this corpus.
Search patents in C01B- Granted patents
- 958
- Published applications
- 1,031
- Assignees
- 579
- Inventors
- 2,410
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 11 | 0 |
| 1978 | 8 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 11 | 0 |
| 1982 | 4 | 0 |
| 1983 | 12 | 0 |
| 1984 | 5 | 0 |
| 1985 | 7 | 0 |
| 1986 | 9 | 0 |
| 1987 | 10 | 0 |
| 1988 | 5 | 0 |
| 1989 | 11 | 0 |
| 1990 | 8 | 0 |
| 1991 | 14 | 0 |
| 1992 | 8 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 8 | 0 |
| 1997 | 3 | 0 |
| 1998 | 10 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 7 | 2 |
| 2002 | 8 | 19 |
| 2003 | 14 | 24 |
| 2004 | 9 | 21 |
| 2005 | 13 | 20 |
| 2006 | 14 | 26 |
| 2007 | 21 | 26 |
| 2008 | 10 | 28 |
| 2009 | 17 | 23 |
| 2010 | 25 | 47 |
| 2011 | 30 | 41 |
| 2012 | 25 | 44 |
| 2013 | 40 | 65 |
| 2014 | 47 | 57 |
| 2015 | 35 | 57 |
| 2016 | 43 | 60 |
| 2017 | 61 | 47 |
| 2018 | 53 | 55 |
| 2019 | 46 | 60 |
| 2020 | 34 | 48 |
| 2021 | 43 | 58 |
| 2022 | 37 | 74 |
| 2023 | 47 | 32 |
| 2024 | 45 | 41 |
| 2025 | 34 | 32 |
| 2026 | 18 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C01B 19/007Tellurides or selenides of metals591
- C01B 19/002Compounds containing, besides selenium or tellurium, more than one other element, with258
- C01B 19/02Elemental selenium or tellurium93
- C01B 19/04Binary compounds including binary selenium-tellurium compounds92
- C01B 19/004Oxides20
- C01B 19/001Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange17
- C01B 19/008Salts of oxyacids of selenium or tellurium13
- C01B 19/005Halides3
Recent patents
- Method for manufacturing a fused metal sight window with a high flow temperature optical material8 Sep 2026US 12,729,155 B2Rayotek Scientific, Inc.
- Quantum dots/graphene heterostructures for high-performance uncooled infrared detection25 Aug 2026US 12,716,772 B2University of Kansas
- Electroluminescent device and semiconductor nanoparticle4 Aug 2026US 12,698,442 B2Samsung Display Co., Ltd.
- Method of forming an alkaline-earth metal selenide and/or sulfide compound7 Jul 2026US 12,674,096 B2City University of Hong Kong
- Lithium-supplementing additive, preparation method and application thereof2 Jun 2026US 12,643,798 B2Shenzhen Dynanonic Innovazone New Energy Technology Co., Ltd.
- Composition exhibiting narrow photoluminescence line width8 Oct 2026US 2026/0308448 A1
- Recycling tellurium and other materials utilized in teg manufacturing3 Sep 2026US 2026/0257914 A1Ats IP, LLC
- A hybrid sers substrate and method of forming the same13 Aug 2026US 2026/0235785 A1Agency for Science, Technology and Research
- Sulphide based lithium-ion conducting solid materials and methods for the production thereof6 Aug 2026US 2026/0229536 A1Umicore AG & Co. KG
- Phase Change Material, Phase Change Storage Chip, Storage Device, and Electronic Device30 Jul 2026US 2026/0223605 A1Huawei Technologies Co., Ltd.
Most cited
By later US patents
- Highly luminescent color-selective nano-crystalline materials747US 6,322,901 B1Massachusetts Institute of Technology · 2001
- Water-soluble fluorescent nanocrystals416US 6,251,303 B1Massachusetts Institute of Technology · 2001
- Highly luminescent color-selective materials and method of making thereof406US 6,207,229 B1Massachusetts Institute of Technology · 2001
- Preparation of nanocrystallites375US 6,576,291 B2Massachusetts Institute of Technology · 2003
- Process for forming shaped group II-VI semiconductor nanocrystals, and product formed using process351US 6,225,198 B1The Regents of the University of California · 2001