H01H 13/28
Using compression or extension of coil springs
Official title: using compression or extension of coil springs
H01H13/28 (Using compression or extension of coil springs) appears on 129 US grants and 111 published applications in this corpus.
Search patents in H01H- Granted patents
- 129
- Published applications
- 111
- Assignees
- 98
- Inventors
- 262
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 1 | 1 |
| 2004 | 2 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 1 | 5 |
| 2012 | 2 | 2 |
| 2013 | 5 | 11 |
| 2014 | 9 | 2 |
| 2015 | 4 | 7 |
| 2016 | 6 | 11 |
| 2017 | 8 | 3 |
| 2018 | 7 | 12 |
| 2019 | 7 | 6 |
| 2020 | 6 | 3 |
| 2021 | 2 | 6 |
| 2022 | 7 | 7 |
| 2023 | 5 | 5 |
| 2024 | 3 | 9 |
| 2025 | 2 | 10 |
| 2026 | 8 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
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Most cited
By later US patents
- Electrical wiring device with high current USB charging capabilities99US 8,758,031 B2Pass & Seymour, Inc. · 2014
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- Modular push switch mechanism54US 9,095,053 B2Pass & Seymour, Inc. · 2015
- Keyboard electro-mechanical switch with coil spring contact31US 4,088,855 AKorry Manufacturing Co. · 1978
- Buckling spring torsional snap actuator31US 4,118,611 AInternational Business Machines Corporation · 1978