H01H 2009/0292
Transparent window or opening
Official title: {Transparent window or opening, e.g. for allowing visual inspection of contact position or contact condition}
H01H2009/0292 (Transparent window or opening) appears on 140 US grants and 88 published applications in this corpus.
Search patents in H01H- Granted patents
- 140
- Published applications
- 88
- Assignees
- 82
- Inventors
- 273
- Latest grant
- 14 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 5 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 4 | 0 |
| 2003 | 1 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 2 |
| 2006 | 4 | 5 |
| 2007 | 3 | 3 |
| 2008 | 2 | 3 |
| 2009 | 2 | 3 |
| 2010 | 5 | 2 |
| 2011 | 1 | 1 |
| 2012 | 3 | 3 |
| 2013 | 1 | 6 |
| 2014 | 1 | 4 |
| 2015 | 4 | 3 |
| 2016 | 6 | 8 |
| 2017 | 11 | 9 |
| 2018 | 4 | 5 |
| 2019 | 9 | 5 |
| 2020 | 6 | 5 |
| 2021 | 6 | 5 |
| 2022 | 4 | 6 |
| 2023 | 8 | 5 |
| 2024 | 3 | 3 |
| 2025 | 3 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Circuit breaker with indicator of breaker position14 Oct 2025US 12,444,911 B2Jst Power Equipment, Inc.
- Electrical connector for a medium-power or high-power electrical distribution network8 Jul 2025US 12,355,194 B2Eaton Intelligent Power Limited
- Touch switch structure25 Mar 2025US 12,261,002 B2Hyundai Motor Company
- Circuit breaker with terminal bushings having dynamic seal24 Sep 2024US 12,100,939 B2Jst Power Equipment, Inc.
- Circuit breaker with single phase control6 Aug 2024US 12,057,683 B2Jst Power Equipment, Inc.
- Circuit breaker with single phase control15 Aug 2024US 2024/0275144 A1Jst Power Equipment, Inc.
- Material Removal from Inner Surface to Preserve Perception of Outer Surface Aesthetics25 Jul 2024US 2024/0251517 A1Lutron Technology Company LLC
- Circuit breaker with indicator of breaker position11 Jan 2024US 2024/0014639 A1Jst Power Equipment, Inc.
- Circuit breaker with single phase control26 Oct 2023US 2023/0343527 A1Jst Power Equipment, Inc.
- Circuit breaker with terminal bushings having dynamic seal26 Oct 2023US 2023/0343528 A1Jst Power Equipment, Inc.
Most cited
By later US patents
- Molded pole automatic circuit recloser with bistable electromagnetic actuator116US 5,912,604 AABB Power T&D Company Inc. · 1999
- Circuit interrupter with multiple display and parameter entry means49US 4,351,013 AWestinghouse Electric Corp. · 1982
- Differential pressure visual and audible warning signal device for hydraulic and pneumatic systems44US 3,934,238 AAMBAC Industries, Incorporated · 1976
- Switchgear assembly34US 6,040,538 AS&C Electric Company · 2000
- Visible break assembly including a window to view a power connection34US 7,182,647 B2Cooper Technologies Company · 2007