H01H 9/281
Making use of a padlock
Official title: {making use of a padlock (H01H9/287 takes precedence)}
H01H9/281 (Making use of a padlock) appears on 285 US grants and 185 published applications in this corpus.
Search patents in H01H- Granted patents
- 285
- Published applications
- 185
- Assignees
- 111
- Inventors
- 489
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 5 | 0 |
| 1993 | 12 | 0 |
| 1994 | 9 | 0 |
| 1995 | 5 | 0 |
| 1996 | 8 | 0 |
| 1997 | 6 | 0 |
| 1998 | 14 | 0 |
| 1999 | 7 | 0 |
| 2000 | 1 | 0 |
| 2001 | 7 | 0 |
| 2002 | 8 | 2 |
| 2003 | 4 | 3 |
| 2004 | 6 | 8 |
| 2005 | 6 | 1 |
| 2006 | 6 | 9 |
| 2007 | 4 | 5 |
| 2008 | 8 | 7 |
| 2009 | 4 | 8 |
| 2010 | 1 | 4 |
| 2011 | 7 | 5 |
| 2012 | 4 | 9 |
| 2013 | 4 | 6 |
| 2014 | 7 | 11 |
| 2015 | 13 | 9 |
| 2016 | 7 | 15 |
| 2017 | 8 | 12 |
| 2018 | 16 | 9 |
| 2019 | 12 | 12 |
| 2020 | 7 | 10 |
| 2021 | 15 | 14 |
| 2022 | 17 | 5 |
| 2023 | 8 | 10 |
| 2024 | 9 | 5 |
| 2025 | 5 | 3 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Handle lock device for circuit breaker2 Jun 2026US 12,646,663 B2Fuji Electric Fa Components & Systems Co., Ltd.
- Hermetically sealed manual disconnect with integrated bellows actuator10 Feb 2026US 12,548,717 B2Rincon Power, LLC
- Circuit breaker with integrated safety lock-off mechanism10 Feb 2026US 12,548,719 B2Siemens Industry, Inc.
- Lockout/tagout system and method including multi-user lockout device with electronic locking and wireless control interface27 Jan 2026US RE50,769 E1Eaton Intelligent Power Limited
- Rotary circuit breaker lockout system and method6 Jan 2026US 12,518,934 B2Brady Worldwide, Inc.
- Hermetically sealed manual disconnect with integrated bellows actuator21 May 2026US 2026/0142095 A1Rincon Power, LLC
- Lockout/tagout system and method including multi-user lockout device with electronic locking and wireless control interface14 May 2026US 2026/0134730 A1Eaton Intelligent Power Limited
- Handle of industrial cut-off switch with improved safety using multiple locks23 Apr 2026US 2026/0112562 A1Hyundai Tech Co., Ltd.
- Escutcheon modules for circuit breakers6 Nov 2025US 2025/0343018 A1Schneider Electric USA, Inc.
- Actuation Knob with Integrated Padlocking Link30 Oct 2025US 2025/0336620 A1Eaton Intelligent Power Limited
Most cited
By later US patents
- Circuit breaker with remote control and disconnection function120US 5,477,016 AMerlin Gerin · 1995
- Electric switch in which the control lever travel is arrested if the contacts become welded together101US 4,546,224 ASACE S.p.A. Costruzioni Elettromeccaniche · 1985
- Device for mechanical and electrical lockout of a remote control unit for a modular circuit breaker94US 5,504,284 AMerlin Gerin · 1996
- Molded case circuit breaker with current flow indicating handle mechanism73US 6,194,983 B1Eaton Corporation · 2001
- Manually operated device having a turning handle for electrical switching devices60US 6,423,912 B1Moeller GmbH · 2002