H02N 1/04
Friction generators
H02N1/04 (Friction generators) appears on 288 US grants and 364 published applications in this corpus.
Search patents in H02N- Granted patents
- 288
- Published applications
- 364
- Assignees
- 169
- Inventors
- 873
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 3 | 2 |
| 2014 | 2 | 9 |
| 2015 | 2 | 17 |
| 2016 | 5 | 29 |
| 2017 | 20 | 31 |
| 2018 | 23 | 38 |
| 2019 | 31 | 28 |
| 2020 | 39 | 32 |
| 2021 | 27 | 31 |
| 2022 | 27 | 36 |
| 2023 | 34 | 34 |
| 2024 | 31 | 28 |
| 2025 | 28 | 23 |
| 2026 | 11 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Humidity-sensing structural color emitting laminate and structural color display device self-powered by triboelectricity including the same laminate8 Sep 2026US 12,730,075 B2University-Industry Foundation, Yonsei University
- Self-powered passive electro-tactile haptic glove1 Sep 2026US 12,724,484 B2City University of Hong Kong
- Triboelectric film laminate based on conductive primer18 Aug 2026US 12,712,472 B23M Innovative Properties Company
- Highly sensitive self-powered pressure sensor and the use of the same4 Aug 2026US 12,700,813 B2Industry-Academic Cooperation Foundation, Yonsei University
- Self-power-generation structure and augmented reality glass21 Jul 2026US 12,689,311 B2Advanced Optoelectronic Technology, Inc.
- Lightweight triboelectric device, method of generating a flow of electric charges and vehicle using same1 Oct 2026US 2026/0302971 A1The Royal Institution for the Advancement of Learning/Mcgill University
- Electromagnetic-Triboelectric Hybrid Energy Harvesting Unit, Tile and Floor System20 Aug 2026US 2026/0246396 A1City University of Hong Kong
- Amphibious energy harvesting system for wind and water energy conversion6 Aug 2026US 2026/0226884 A1New Jersey Institute of Technology
- Triboelectric generator based on multilayer materials30 Jul 2026US 2026/0221900 A1ENERGY MINING Co., Ltd.
- Mof composite16 Jul 2026US 2026/0205030 A1Oxford University Innovation Limited
Most cited
By later US patents
- Rolling triboelectric generator44US 4,990,813 AUniversidad Nacional De Educacion A Distancia · 1991
- Energy harvester using mass and mobile device including the energy harvester34US 9,444,031 B2Samsung Electronics Co., Ltd. · 2016
- Stretchable triboelectric generator, stretchable electricity storage device, and wearable electronic device31US 9,887,644 B2Seoul National University R&Db Foundation · 2018
- Energy harvester using mass and mobile device including the energy harvester29US 9,837,933 B2Samsung Electronics Co., Ltd. · 2017
- Triboelectric generator26US 9,178,446 B2Georgia Tech Research Corporation · 2015