F03G 1/022
Using spiral springs
Official title: {using spiral springs}
F03G1/022 (Using spiral springs) appears on 94 US grants and 71 published applications in this corpus.
Search patents in F03G- Granted patents
- 94
- Published applications
- 71
- Assignees
- 67
- Inventors
- 172
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 2 |
| 2003 | 1 | 2 |
| 2004 | 3 | 2 |
| 2005 | 4 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 2 | 2 |
| 2013 | 0 | 2 |
| 2014 | 1 | 2 |
| 2015 | 3 | 2 |
| 2016 | 1 | 6 |
| 2017 | 3 | 3 |
| 2018 | 4 | 4 |
| 2019 | 10 | 11 |
| 2020 | 8 | 8 |
| 2021 | 1 | 4 |
| 2022 | 4 | 4 |
| 2023 | 3 | 3 |
| 2024 | 3 | 5 |
| 2025 | 4 | 2 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Energy converter module16 Jun 2026US 12,655,830 B2Blue Economy CRC Co
- Power generator and fluid supply device having the same12 May 2026US 12,624,679 B2Pukyong National University Industry-University Cooperation Foundation
- Display device27 Jan 2026US 12,538,441 B2LG Display Co., Ltd.
- Energy storage device and power generation floor with the same1 Apr 2025US 12,264,654 B2
- Actuator device having power spring retention18 Mar 2025US 12,253,067 B2Siemens Industry, Inc.
- A personal care apparatus, an attachment, and a removable toothbrush head23 Jul 2026US 2026/0206954 A1Orka Online Ltd
- Energy converter module22 May 2025US 2025/0163895 A1Blue Economy CRC Co
- Tape Measure with Compact Retraction System15 May 2025US 2025/0155230 A1Milwaukee Electric Tool Corporation
- Power generator and fluid supply device having the same12 Dec 2024US 2024/0410342 A1Pukyong National University Industry-University Cooperation Foundation
- Actuator device having power spring retention3 Oct 2024US 2024/0328396 A1Siemens Industry, Inc.
Most cited
By later US patents
- Spring motor58US 6,149,094 ABarnes Group Inc. · 2000
- Rotation damper36US 4,576,252 ANifco Inc. · 1986
- Backwound pre-stressed spring motor and method31US 4,635,755 AAmetek, Inc. · 1987
- Spring motor for generating constant torque30US 6,199,664 B1General Electric Company · 2001
- Swing having electrically rewound spring motor drive28US 4,211,401 AHedstrom Corporation · 1980