F03G 1/02
Spring motors: characterised by shape or material of spring
Official title: characterised by shape or material of spring, e.g. helical, spiral, coil
F03G1/02 (Spring motors: characterised by shape or material of spring) appears on 250 US grants and 202 published applications in this corpus.
Search patents in F03G- Granted patents
- 250
- Published applications
- 202
- Assignees
- 170
- Inventors
- 437
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 7 | 0 |
| 1986 | 6 | 0 |
| 1987 | 6 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 3 |
| 2002 | 3 | 5 |
| 2003 | 4 | 5 |
| 2004 | 5 | 4 |
| 2005 | 5 | 1 |
| 2006 | 3 | 4 |
| 2007 | 4 | 4 |
| 2008 | 0 | 8 |
| 2009 | 2 | 6 |
| 2010 | 4 | 9 |
| 2011 | 0 | 6 |
| 2012 | 8 | 7 |
| 2013 | 8 | 12 |
| 2014 | 9 | 10 |
| 2015 | 10 | 8 |
| 2016 | 6 | 14 |
| 2017 | 8 | 9 |
| 2018 | 12 | 11 |
| 2019 | 18 | 17 |
| 2020 | 17 | 15 |
| 2021 | 7 | 8 |
| 2022 | 9 | 9 |
| 2023 | 6 | 9 |
| 2024 | 7 | 9 |
| 2025 | 9 | 6 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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
- Transmission for a motor vehicle27 Jan 2026US 12,535,132 B2ZF Friedrichshafen AG
- Display device27 Jan 2026US 12,538,441 B2LG Display Co., Ltd.
- Winding drum and torsion spring for a winding drum11 Nov 2025US 12,466,693 B2Igus GmbH
- Energy storage structure and rotary isolation switch27 Aug 2026US 2026/0251128 A1Chint Low Voltage Electrical Technology Co., Ltd.
- Quick release scotch yoke actuator6 Aug 2026US 2026/0226885 A1Bray International, Inc.
- A personal care apparatus, an attachment, and a removable toothbrush head23 Jul 2026US 2026/0206954 A1Orka Online Ltd
- Method and device for reading the water meter16 Oct 2025US 2025/0321132 A1Waumer Oy
- High-efficiency self-generator24 Jul 2025US 2025/0239914 A1Samnam Inc.
Most cited
By later US patents
- Cordless, balanced venetian blind or shade with consistent variable force spring motor239US 5,482,100 ANewell Operating Company · 1996
- Methods and apparatus for suspension lock out and signal generation101US 8,393,446 B22013
- Cordless, balanced window covering89US 5,531,257 ANewell Operating Company · 1996
- Methods and apparatus for suspension lock out and signal generation75US 10,072,724 B2Fox Factory, Inc. · 2018
- Wind-up power source with spring motor and vehicle incorporating same58US 5,880,532 AEstate of Robert Stopher · 1999