H01H 2235/002
Linear coil spring combined with dome spring
H01H2235/002 (Linear coil spring combined with dome spring) appears on 28 US grants and 14 published applications in this corpus.
Search patents in H01H- Granted patents
- 28
- Published applications
- 14
- Assignees
- 23
- Inventors
- 53
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 0 |
| 2008 | 2 | 2 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 1 | 3 |
| 2021 | 2 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Computer input device21 Oct 2025US 12,451,304 B2Elasto Lc
- Keyswitch and keyboard thereof8 Nov 2022US 11,495,421 B2Darfon Electronics Corp.
- Reaction force generating member for a key switch device18 May 2021US 11,011,329 B2Fujitsu Component Limited
- Button restoring mechanism and electronic device having same2 Feb 2021US 10,910,173 B2Hon Hai Precision Industry Co., Ltd.
- Button assembly for a portable communication device8 Sep 2020US 10,770,242 B2Motorola Solutions, Inc.
- Key structure6 Aug 2026US 2026/0229426 A1Darfon Electronics Corp.
- Computer input device1 Aug 2024US 2024/0258048 A1Elasto Lc
- Button restoring mechanism and electronic device having same1 Oct 2020US 2020/0312586 A1Hon Hai Precision Industry Co., Ltd.
- Keyswitch and keyboard thereof17 Sep 2020US 2020/0294737 A1Darfon Electronics Corp.
- Push-to-talk assembly for a portable communication device9 Apr 2020US 2020/0111625 A1Motorola Solutions, Inc.
Most cited
By later US patents
- Multi-contact push-button switch and plural embodiment for keyboard switch assembly55US 4,029,916 ANorthern Electric Company Limited · 1977
- Keyboard switch assembly34US 4,439,646 ASociete de Telecommunications Electronique Aeronautique et Maritime T.E.A.M. · 1984
- Electrical switch assembly29US 4,156,802 ATelaris Telecommunications, Inc. · 1979
- Computer key switch23US 5,442,152 AFocus Electronic Co., Ltd. · 1995
- Keyboard having variable inclination of the key plane20US 4,658,124 AIng. C. Olivetti & C., S.p.A. · 1987