H01H 9/061
Enclosing a continuously variable impedance
Official title: {enclosing a continuously variable impedance}
H01H9/061 (Enclosing a continuously variable impedance) appears on 144 US grants and 91 published applications in this corpus.
Search patents in H01H- Granted patents
- 144
- Published applications
- 91
- Assignees
- 62
- Inventors
- 249
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 6 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 7 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 0 |
| 2003 | 2 | 3 |
| 2004 | 6 | 4 |
| 2005 | 2 | 2 |
| 2006 | 2 | 1 |
| 2007 | 1 | 7 |
| 2008 | 1 | 4 |
| 2009 | 5 | 5 |
| 2010 | 3 | 1 |
| 2011 | 5 | 8 |
| 2012 | 4 | 4 |
| 2013 | 3 | 3 |
| 2014 | 4 | 6 |
| 2015 | 5 | 7 |
| 2016 | 4 | 5 |
| 2017 | 9 | 4 |
| 2018 | 6 | 8 |
| 2019 | 2 | 0 |
| 2020 | 6 | 4 |
| 2021 | 2 | 3 |
| 2022 | 3 | 5 |
| 2023 | 3 | 2 |
| 2024 | 2 | 1 |
| 2025 | 2 | 2 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Power tool28 Apr 2026US 12,611,758 B2Milwaukee Electric Tool Corporation
- Variable-speed trigger switch having a conductive elastomer6 Jan 2026US 12,519,370 B2Black & Decker Inc.
- Capacitor rocker device and remote control28 Oct 2025US 12,456,592 B1Guangdong K-Silver Industrial Co., Ltd.
- Switch actuator13 May 2025US 12,300,457 B2Sensata Technologies, Inc.
- Electronic switch module and electric tool4 Jun 2024US 11,999,041 B2Huizhou Topband Electrical Technology Co., Ltd.
- Integrated switching device and motor control system9 Jul 2026US 2026/0196905 A1Defond Electech Co., Ltd.
- Variable-speed trigger switch having a conductive elastomer14 May 2026US 2026/0135440 A1Black & Decker Inc.
- Capacitor rocker device and remote control30 Oct 2025US 2025/0336619 A1Guangdong K-Silver Industrial Co., Ltd.
- Electrical switch unit for electrical device11 Sep 2025US 2025/0285819 A1Defond Electech Co., Ltd.
- Variable-speed trigger switch including conductive elastic material17 Oct 2024US 2024/0347290 A1Black & Decker Inc.
Most cited
By later US patents
- State of charge indicator for a battery charger837US 8,796,995 B2Black & Decker Inc. · 2014
- Method and apparatus for providing torque limit feedback in a power drill78US 7,400,106 B2Robert Bosch GmbH · 2008
- Rotational speed control and use of same to control the rotational speed of an electric hand tool motor76US 5,365,155 AMarquardt GmbH · 1994
- Power tool with heat sink assembly76US 6,552,904 B2Black & Decker Inc. · 2003
- Variable speed trigger switch53US 4,737,661 ABlack & Decker Inc. · 1988