H01H 2215/022
Asymmetric
Official title: Asymmetric; Elliptic; Square
H01H2215/022 (Asymmetric) appears on 40 US grants and 29 published applications in this corpus.
Search patents in H01H- Granted patents
- 40
- Published applications
- 29
- Assignees
- 46
- Inventors
- 95
- Latest grant
- 16 Apr 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 4 |
| 2012 | 1 | 2 |
| 2013 | 1 | 1 |
| 2014 | 1 | 1 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 2 | 2 |
| 2018 | 0 | 3 |
| 2019 | 4 | 1 |
| 2020 | 1 | 2 |
| 2021 | 0 | 2 |
| 2022 | 3 | 4 |
| 2023 | 1 | 0 |
| 2024 | 2 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Push switch16 Apr 2024US 11,961,687 B2Alps Alpine Co., Ltd.
- Controller and key structure9 Apr 2024US 11,951,387 B2Nintendo Co., Ltd.
- Activation assembly, button, and keyboard19 Sep 2023US 11,764,006 B2Wistron Corporation
- Multipolar switch8 Nov 2022US 11,495,418 B2Apem
- Push switch7 Jun 2022US 11,355,295 B2Panasonic Intellectual Property Management Co., Ltd.
- Push switch17 Apr 2025US 2025/0125100 A1Alps Alpine Co., Ltd.
- Activation assembly, button, and keyboard24 Nov 2022US 2022/0375702 A1Wistron Corporation
- Controller and key structure17 Nov 2022US 2022/0362661 A1Nintendo Co., Ltd.
- Key structure and elastic conduction element thereof23 Jun 2022US 2022/0199338 A1Primax Electronics Ltd.
- Multipolar switch9 Jun 2022US 2022/0181099 A1Apem
Most cited
By later US patents
- Tactile membrane keyboard with asymmetrical tactile key elements123US 4,492,829 ARogers Corporation · 1985
- Push-button switch including a sheet provided with a plurality of domed members68US 5,136,131 ASharp Kabushiki Kaisha · 1992
- Tactile membrane keyboard with elliptical tactile key elements62US 4,477,700 ARogers Corporation · 1984
- Keyboard switch assembly34US 4,439,646 ASociete de Telecommunications Electronique Aeronautique et Maritime T.E.A.M. · 1984
- Laminate switch assembly having improved durability33US 4,423,294 AHall Inc. · 1983