B65H 2403/724
Electromagnetic clutches
Official title: electromagnetic clutches
B65H2403/724 (Electromagnetic clutches) appears on 88 US grants and 89 published applications in this corpus.
Search patents in B65H- Granted patents
- 88
- Published applications
- 89
- Assignees
- 47
- Inventors
- 175
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 1 | 1 |
| 2005 | 0 | 3 |
| 2006 | 1 | 0 |
| 2007 | 2 | 0 |
| 2008 | 1 | 2 |
| 2009 | 1 | 0 |
| 2010 | 0 | 4 |
| 2011 | 1 | 5 |
| 2012 | 2 | 6 |
| 2013 | 6 | 6 |
| 2014 | 8 | 4 |
| 2015 | 5 | 4 |
| 2016 | 5 | 10 |
| 2017 | 10 | 8 |
| 2018 | 2 | 3 |
| 2019 | 6 | 10 |
| 2020 | 5 | 0 |
| 2021 | 4 | 9 |
| 2022 | 1 | 2 |
| 2023 | 9 | 4 |
| 2024 | 2 | 4 |
| 2025 | 2 | 1 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Winding and unwinding device and battery production system9 Jun 2026US 12,651,764 B2Contemporary Amperex Technology (Hong Kong) Limited
- Image forming apparatus2 Jun 2026US 12,643,752 B2Brother Kogyo Kabushiki Kaisha
- Winding and unwinding apparatus, and preparation system of electrode plate10 Mar 2026US 12,570,489 B2Contemporary Amperex Technology (Hong Kong) Limited
- Power transmission apparatus, medium transport apparatus, recording apparatus, control method of power transmission apparatus, and control method of medium transport apparatus10 Feb 2026US 12,545,534 B2Seiko Epson Corporation
- Sheet conveyor and image forming apparatus8 Apr 2025US 12,269,700 B2Brother Kogyo Kabushiki Kaisha
- Medium feeding apparatus, method for feeding medium, and computer-readable non-transitory recording medium22 Jan 2026US 2026/0021985 A1Pfu Limited
- Media conveying apparatus20 Feb 2025US 2025/0058989 A1Pfu Limited
- Image forming apparatus7 Nov 2024US 2024/0369959 A1Brother Kogyo Kabushiki Kaisha
- Image forming apparatus and sheet conveyance device4 Apr 2024US 2024/0111238 A1Brother Kogyo Kabushiki Kaisha
- Winding and unwinding apparatus, and preparation system of electrode plate7 Mar 2024US 2024/0076155 A1Contemporary Amperex Technology Co., Limited
Most cited
By later US patents
- Web material application methods and systems64US 7,172,666 B22007
- Sheet feeding device31US 5,921,539 AEastman Kodak Company · 1999
- Cartridge drive apparatus25US 3,967,790 AQume Corporation · 1976
- Medium feeding device17US 8,678,372 B2Pfu Limited · 2014
- Magnetic clutch16US 5,105,928 AMatsushita Electric Industrial Co., Ltd. · 1992