F03G 1/029
Using two or more springs
Official title: {using two or more springs}
F03G1/029 (Using two or more springs) appears on 25 US grants and 27 published applications in this corpus.
Search patents in F03G- Granted patents
- 25
- Published applications
- 27
- Assignees
- 18
- Inventors
- 54
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 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 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 2 |
| 2019 | 4 | 2 |
| 2020 | 3 | 1 |
| 2021 | 1 | 2 |
| 2022 | 2 | 3 |
| 2023 | 0 | 1 |
| 2024 | 2 | 1 |
| 2025 | 2 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Elastic energy storage device which is used for converting mechanical energy into electrical energy2 May 2024US 2024/0141873 A1
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Most cited
By later US patents
- Wind-up power source with spring motor and vehicle incorporating same58US 5,880,532 AEstate of Robert Stopher · 1999
- Spring motor assembly13US 5,590,741 A1997
- Power unit5US 3,994,368 A1976
- Actuator for movable furniture parts5US 9,631,411 B2Julius Blum GmbH · 2017
- Power apparatus with low energy consumption4US 6,462,444 B12002