H01H 2235/004
Two parallel coil springs
H01H2235/004 (Two parallel coil springs) appears on 27 US grants and 25 published applications in this corpus.
Search patents in H01H- Granted patents
- 27
- Published applications
- 25
- Assignees
- 26
- Inventors
- 53
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 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 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 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 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 3 |
| 2016 | 2 | 1 |
| 2017 | 4 | 3 |
| 2018 | 2 | 3 |
| 2019 | 2 | 0 |
| 2020 | 1 | 3 |
| 2021 | 3 | 1 |
| 2022 | 0 | 2 |
| 2023 | 3 | 2 |
| 2024 | 3 | 2 |
| 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 structure and lift mechanism thereof3 Sep 2024US 12,080,492 B2Darfon Electronics Corp.
- Selecting switch25 Jun 2024US 12,020,875 B2Alps Alpine Co., Ltd.
- Input device2 Apr 2024US 11,947,376 B2Alps Alpine Co., Ltd.
- Electric push-button switch28 Nov 2023US 11,830,686 B2KOSTAL Automobil Elektrik GmbH & Co. KG
- Electrical device with movable hardstop14 May 2026US 2026/0135055 A1Sensata Technologies, Inc.
- Selecting switch10 Oct 2024US 2024/0339272 A1Alps Alpine Co., Ltd.
- Computer input device1 Aug 2024US 2024/0258048 A1Elasto Lc
- Keyswitch structur and lift mechanism thereof22 Jun 2023US 2023/0197373 A1Darfon Electronics Corp.
- Selecting switch30 Mar 2023US 2023/0100532 A1Alps Alpine Co., Ltd.
Most cited
By later US patents
- Electrical switch assembly29US 4,156,802 ATelaris Telecommunications, Inc. · 1979
- Detachably mounted keyboard pushbutton actuators and housing assembly17US 3,993,884 AVictor Comptometer Corporation · 1976
- Keyboard switch assembly having flexible contact carrying member between contact carrying substrate and flexible, resilient, key-depressible bubble protrusions15US 4,129,758 ATelaris Telecommunications, Inc. · 1978
- Keyboard switch15US 4,864,085 AHosiden Electronics Co., Ltd. · 1989
- Emergency stop device9US 10,475,597 B2Schneider Electric Industries SAS · 2019