F21K 2/04
Non-electric light sources using luminescence: using triboluminescence
Official title: using triboluminescence; using thermoluminescence
F21K2/04 (Non-electric light sources using luminescence: using triboluminescence) appears on 20 US grants and 30 published applications in this corpus.
Search patents in F21K- Granted patents
- 20
- Published applications
- 30
- Assignees
- 24
- Inventors
- 66
- Latest grant
- 15 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 2 |
| 2005 | 1 | 2 |
| 2006 | 1 | 1 |
| 2007 | 4 | 1 |
| 2008 | 0 | 2 |
| 2009 | 2 | 3 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 0 | 5 |
| 2017 | 1 | 0 |
| 2018 | 1 | 2 |
| 2019 | 2 | 2 |
| 2020 | 1 | 1 |
| 2021 | 2 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Self generation pressure-sensitive light emitting device and method thereof15 Jul 2025US 12,359,777 B2Iucf-Hyu (Industry-University Cooperation Foundation Hanyang University)
- Sports ball with mechanoluminescence29 Aug 2023US 11,738,240 B2NIKE, Inc.
- Charged particle detection material, and charged particle detection film and charged particle detection liquid using the same11 May 2021US 11,004,572 B2National Institute of Advanced Industrial Science and Technology
- Sports ball with mechanoluminescence16 Feb 2021US 10,918,914 B2NIKE, Inc.
- Method for dynamic control of light emission from phosphors with heat excitations25 Aug 2020US 10,753,545 B1Uchicago Argonne, LLC
- Wireless and battery-free touch-responsive luminescent fiber, preparation method, and use thereof9 Oct 2025US 2025/0313999 A1First Fiber (Suzhou) Technology Co., Ltd.
- Self generation pressure-sensitive light emitting device and method thereof30 Jan 2025US 2025/0035270 A1Iucf-Hyu (Industry-University Cooperation Foundation Hanyang University)
- Amorphous triboluminescent material, method for producing the same, method for generating light emission in amorphous triboluminescent layer, and mechanoresponsive sensor24 Oct 2024US 2024/0352310 A1Okinawa Institute of Science and Technology School Corporation
- Sports ball with mechanoluminescence6 May 2021US 2021/0128987 A1NIKE, Inc.
- Method for dynamic control of light emission from phosphors with heat excitations13 Aug 2020US 2020/0256519 A1Uchicago Argonne, LLC
Most cited
By later US patents
- Mechanoluminescence material, producing method thereof, and usage thereof41US 7,060,371 B2National Institute of Advanced Industrial Science and Technology · 2006
- Triboluminescent inorganic material and a method for preparation thereof13US 6,117,574 AAgency of Industrial Science and Technology · 2000
- Triboluminescent materials and devices10US 7,270,770 B2Qinetiq Limited · 2007
- Projectile impact energy and location measurement system8US 7,278,290 B1The United States of America as represented by the Secretary of the Navy · 2007
- Sports ball with mechanoluminescence6US 10,258,836 B2NIKE, Inc. · 2019