B65H 75/486
Arrangements or adaptations of the spring motor
Official title: {Arrangements or adaptations of the spring motor}
B65H75/486 (Arrangements or adaptations of the spring motor) appears on 178 US grants and 177 published applications in this corpus.
Search patents in B65H- Granted patents
- 178
- Published applications
- 177
- Assignees
- 123
- Inventors
- 314
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 4 | 0 |
| 2003 | 0 | 2 |
| 2004 | 2 | 2 |
| 2005 | 0 | 1 |
| 2006 | 2 | 1 |
| 2007 | 0 | 3 |
| 2008 | 4 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 2 | 4 |
| 2013 | 2 | 6 |
| 2014 | 4 | 8 |
| 2015 | 4 | 6 |
| 2016 | 5 | 5 |
| 2017 | 8 | 21 |
| 2018 | 5 | 15 |
| 2019 | 20 | 20 |
| 2020 | 19 | 24 |
| 2021 | 14 | 11 |
| 2022 | 15 | 13 |
| 2023 | 8 | 9 |
| 2024 | 6 | 8 |
| 2025 | 11 | 6 |
| 2026 | 4 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Reversible reel unit99US 4,053,118 ASwing-Shift Mfg. Co. · 1977
- Automatically retracting chalk line marking tool67US 5,822,874 A1998
- Tape rule with geared spring motor drive65US 5,820,057 AThe Stanley Works · 1998
- Retractable cord reel43US 4,232,837 AThe Vacuum Cleaner Corporation of America · 1980
- Chalk line retraction device43US 5,042,159 A1991