H01F 7/13
Characterised by pulling-force characteristic
Official title: characterised by pulling-force characteristic
H01F7/13 (Characterised by pulling-force characteristic) appears on 247 US grants and 165 published applications in this corpus.
Search patents in H01F- Granted patents
- 247
- Published applications
- 165
- Assignees
- 192
- Inventors
- 520
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 2 | 0 |
| 1978 | 5 | 0 |
| 1979 | 6 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 6 | 0 |
| 1983 | 8 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 8 | 0 |
| 1987 | 8 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 8 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 4 | 5 |
| 2003 | 4 | 4 |
| 2004 | 7 | 6 |
| 2005 | 8 | 6 |
| 2006 | 6 | 11 |
| 2007 | 4 | 9 |
| 2008 | 1 | 8 |
| 2009 | 3 | 5 |
| 2010 | 6 | 7 |
| 2011 | 4 | 6 |
| 2012 | 3 | 6 |
| 2013 | 6 | 11 |
| 2014 | 11 | 4 |
| 2015 | 5 | 9 |
| 2016 | 8 | 8 |
| 2017 | 5 | 5 |
| 2018 | 4 | 7 |
| 2019 | 6 | 7 |
| 2020 | 9 | 13 |
| 2021 | 10 | 4 |
| 2022 | 5 | 9 |
| 2023 | 4 | 5 |
| 2024 | 9 | 4 |
| 2025 | 3 | 2 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Magnetic circuit system with enhanced initial electromagnetic attraction and high-voltage DC relay5 May 2026US 12,620,537 B2Xiamen Hongfa Electric Power Controls Co., Ltd.
- Vapor ablation systems and methods20 Jan 2026US 12,527,615 B2Boston Scientific Scimed, Inc.
- Solenoid, damping force adjustment mechanism, and damping force adjustable shock absorber2 Dec 2025US 12,488,923 B2Hitachi Astemo, Ltd.
- Electromagnetic actuator16 Sep 2025US 12,417,869 B2Micro-Epsilon Messtechnik GmbH & Co.KG
- Solenoid, solenoid valve, and shock absorber14 Jan 2025US 12,196,288 B2KYB Corporation
- Magnetic circuit system with enhanced intial electromagnetic attraction and high-voltage dc relay20 Aug 2026US 2026/0245820 A1Xiamen Hongfa Electric Power Controls Co., Ltd.
- Detachable handheld laser scanner system supporting multiple plug-in combinations6 Aug 2026US 2026/0227491 A1Zhuhai 4Dage Technology Co., Ltd
- Solenoid, damping force adjustment mechanism, and damping force adjustable shock absorber5 Mar 2026US 2026/0066167 A1Hitachi Astemo, Ltd.
- Magnetic circuit system with enhanced initial electromagnetic attraction and high-voltage dc relay13 Mar 2025US 2025/0087438 A1Xiamen Hongfa Electric Power Controls Co., Ltd.
- Apparatus, systems, and methods for generating force in electromagnetic system2 Jan 2025US 2025/0007379 A1
Most cited
By later US patents
- Proportional electropneumatic solenoid-controlled valve207US 4,954,799 APuritan-Bennett Corporation · 1990
- Proportional electropneumatic solenoid-controlled valve172US 5,301,921 APuritan-Bennett Corporation · 1994
- Proportional electropneumatic solenoid-controlled valve172US 5,407,174 APuritan-Bennett Corporation · 1995
- Hybrid linear actuator132US 4,845,392 AEaton Corporation · 1989
- Propotional control pressure valve111US 6,619,615 B1ZF Friedrichshafen AG · 2003