H01F 7/1638
Armatures not entering the winding
Official title: {Armatures not entering the winding}
H01F7/1638 (Armatures not entering the winding) appears on 568 US grants and 417 published applications in this corpus.
Search patents in H01F- Granted patents
- 568
- Published applications
- 417
- Assignees
- 348
- Inventors
- 1,224
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 5 | 0 |
| 1983 | 7 | 0 |
| 1984 | 5 | 0 |
| 1985 | 5 | 0 |
| 1986 | 8 | 0 |
| 1987 | 22 | 0 |
| 1988 | 22 | 0 |
| 1989 | 15 | 0 |
| 1990 | 11 | 0 |
| 1991 | 9 | 0 |
| 1992 | 18 | 0 |
| 1993 | 11 | 0 |
| 1994 | 11 | 0 |
| 1995 | 7 | 0 |
| 1996 | 6 | 0 |
| 1997 | 3 | 0 |
| 1998 | 13 | 0 |
| 1999 | 9 | 0 |
| 2000 | 11 | 0 |
| 2001 | 8 | 3 |
| 2002 | 10 | 10 |
| 2003 | 9 | 12 |
| 2004 | 12 | 12 |
| 2005 | 13 | 17 |
| 2006 | 11 | 15 |
| 2007 | 7 | 20 |
| 2008 | 10 | 19 |
| 2009 | 11 | 18 |
| 2010 | 12 | 19 |
| 2011 | 14 | 11 |
| 2012 | 15 | 12 |
| 2013 | 14 | 16 |
| 2014 | 11 | 19 |
| 2015 | 11 | 19 |
| 2016 | 17 | 16 |
| 2017 | 22 | 24 |
| 2018 | 14 | 28 |
| 2019 | 22 | 27 |
| 2020 | 21 | 25 |
| 2021 | 21 | 18 |
| 2022 | 21 | 18 |
| 2023 | 16 | 15 |
| 2024 | 17 | 11 |
| 2025 | 9 | 8 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
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- Substrate transfer apparatus and substrate transfer method12 May 2026US 12,628,611 B2Tokyo Electron Limited
- System for controlling a superconducting coil with a magnetic persistent current switch14 Apr 2026US 12,603,205 B2Koninklijke Philips N. V.
- Actuator device10 Feb 2026US 12,549,856 B2LG Innotek Co., Ltd.
- Haptic actuator23 Sep 2025US 12,424,368 B2Apple Inc.
- Apparatus for electromagnetic manipulation of an optical fiber6 Aug 2026US 2026/0227579 A1
- Electromagnetic excitation system, electromagnetic brake or clutch and method for producing an electromagnetic excitation system11 Jun 2026US 2026/0162863 A1Kendrion (Villingen) GmbH
- Actuator device14 May 2026US 2026/0136102 A1LG Innotek Co., Ltd.
- Electromagnetic actuator system26 Mar 2026US 2026/0088204 A1Apple Inc.
- Solenoid valve12 Feb 2026US 2026/0043380 A1Hoerbiger Wien GmbH
Most cited
By later US patents
- Actuator145US 5,256,998 ATechnische Entwicklungen Dr. Becker GmbH · 1993
- Magnetic flux-shifting fluid valve108US 4,403,765 A1983
- Variable lift operation of bistable electromechanical poppet valve actuator104US 4,829,947 AGeneral Motors Corporation · 1989
- Electromagnetic valve actuator103US 4,794,890 AMagnavox Government and Industrial Electronics Company · 1989
- Variable force solenoid102US 4,635,683 AFord Motor Company · 1987