C09K 11/668
Sulfates
Official title: {Sulfates}
C09K11/668 (Sulfates) appears on 11 US grants and 9 published applications in this corpus.
Search patents in C09K- Granted patents
- 11
- Published applications
- 9
- Assignees
- 14
- Inventors
- 37
- Latest grant
- 4 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 2 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Semiconductor device having quantum dots, display device, imaging system, and moving body4 Mar 2025US 12,245,446 B2Canon Kabushiki Kaisha
- Flexible transparent membrane light emitting diode array and systems containing the same6 Feb 2024US 11,893,149 B2The Johns Hopkins University
- Nanocrystal, method of preparing the same, and optoelectronic device including the nanocrystal21 Apr 2020US 10,626,328 B2Samsung Electronics Co., Ltd.
- Eliminating emissive sub-bandgap states in nanocrystals23 Oct 2018US 10,109,760 B2Massachusetts Institute of Technology
- Luminescent materials that emit light in the visible range or the near infrared range5 Aug 2014US 8,795,767 B2OMNIPV, Inc.
- Flexible transparent membrane light emitting diode array and systems containing the same16 Jun 2022US 2022/0187904 A1The Johns Hopkins University
- Semiconductor device having quantum dots, display device, imaging system, and moving body5 Aug 2021US 2021/0242416 A1Canon Kabushiki Kaisha
- Nanocrystal, method of preparing the same, and optoelectronic device including the nanocrystal24 May 2018US 2018/0142148 A1Samsung Electronics Co., Ltd.
- Eliminating emissive sub-bandgap states in nanocrystals17 Nov 2016US 2016/0336477 A1Massachusetts Institute of Technology
- Method of Producing Stable Oxygen Terminated Semiconducting Nanoparticles26 Jan 2012US 2012/0018551 A1University of Cape Town
Most cited
By later US patents
- Light sources with nanometer-sized VUV radiation-absorbing phosphors490US 6,982,046 B2General Electric Company · 2006
- Luminescent materials that emit light in the visible range or the near infrared range56US 7,641,815 B2UltraDots, Inc. · 2010
- Luminescent phosphor composition43US 5,166,456 AKasei Optonix, Ltd. · 1992
- Method for recording and reproducing a radiation image, radiation image storage panel, photostimulable phosphors and method for obtaining said stimulable phosphors8US 4,792,691 AMinnesota Mining and Manufacturing Company · 1988
- Device for generating UVC radiation4US 7,808,170 B2Koninklijke Philips Electronics N. V. · 2010