H01F 7/0268
Magnetic cylinders
Official title: {Magnetic cylinders}
H01F7/0268 (Magnetic cylinders) appears on 61 US grants and 40 published applications in this corpus.
Search patents in H01F- Granted patents
- 61
- Published applications
- 40
- Assignees
- 38
- Inventors
- 101
- Latest grant
- 17 Sep 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 1 |
| 2002 | 8 | 4 |
| 2003 | 1 | 6 |
| 2004 | 3 | 1 |
| 2005 | 5 | 2 |
| 2006 | 3 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 2 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 0 | 4 |
| 2017 | 3 | 2 |
| 2018 | 3 | 2 |
| 2019 | 1 | 2 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 2 | 2 |
| 2023 | 3 | 3 |
| 2024 | 2 | 2 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Non-directional free electron generating repelling magnet combination17 Sep 2024US 12,094,647 B2
- Securing device and removal tool for use with the securing device4 Jun 2024US 12,000,119 B2
- Adjustable magnetic counterbalance26 Dec 2023US 11,852,212 B2Invetech, Inc.
- Methods for assembling a non-directional free electron generating repelling magnet combination12 Sep 2023US 11,756,730 B2
- Apparatus for assembling a non-directional free electron generating repelling magnet combination21 Mar 2023US 11,610,731 B2
- Magnet roller, developing roller, and image forming apparatus28 Aug 2025US 2025/0271791 A1KYOCERA Document Solutions Inc.
- Securing Device And Removal Tool For Use With The Securing Device19 Sep 2024US 2024/0309616 A1
- Adjustable Magnetic Counterbalance14 Mar 2024US 2024/0084875 A1Invetech, Inc.
- Non-directional free electron generating repelling magnet combination23 Nov 2023US 2023/0377796 A1
- Magnetic cylinder particularly for a device for printing and a method for producing the magnetic cylinder19 Oct 2023US 2023/0330985 A1Rotometal Dbn Sp. Z O.O.
Most cited
By later US patents
- Magnetic workholding device73US 6,489,871 B12002
- Magnet holding structure43US 5,367,278 AKabushiki Kaisha Yoshikawakun Kogyosho · 1994
- Magnet assembly with inserts and method of manufacturing35US 6,125,255 AXerox Corporation · 2000
- Apparatus for producing anisotropic magnets24US 4,604,042 AHitachi Metals, Ltd. · 1986
- Bar magnet for construction of a magnetic roller core22US 5,019,796 AEastman Kodak Company · 1991