H02B 1/28
Dustproof, splashproof, drip-proof, waterproof or flameproof
Official title: dustproof, splashproof, drip-proof, waterproof or flameproof
H02B1/28 (Dustproof, splashproof, drip-proof, waterproof or flameproof) appears on 332 US grants and 311 published applications in this corpus.
Search patents in H02B- Granted patents
- 332
- Published applications
- 311
- Assignees
- 218
- Inventors
- 711
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 9 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 7 | 0 |
| 2000 | 5 | 0 |
| 2001 | 7 | 1 |
| 2002 | 4 | 5 |
| 2003 | 5 | 4 |
| 2004 | 4 | 5 |
| 2005 | 3 | 6 |
| 2006 | 4 | 1 |
| 2007 | 2 | 4 |
| 2008 | 4 | 4 |
| 2009 | 0 | 5 |
| 2010 | 2 | 3 |
| 2011 | 5 | 5 |
| 2012 | 3 | 8 |
| 2013 | 4 | 12 |
| 2014 | 8 | 15 |
| 2015 | 10 | 16 |
| 2016 | 17 | 15 |
| 2017 | 13 | 19 |
| 2018 | 13 | 17 |
| 2019 | 22 | 26 |
| 2020 | 24 | 27 |
| 2021 | 22 | 26 |
| 2022 | 15 | 33 |
| 2023 | 19 | 14 |
| 2024 | 24 | 11 |
| 2025 | 18 | 21 |
| 2026 | 4 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- High voltage PDU design15 Sep 2026US 12,738,718 B2Suzhou Littelfuse OVS Co., Ltd.
- ARC-resistant switch gear enclosure door latch and sealing mechanisms of a switch gear14 Jul 2026US 12,683,364 B2Siemens Industry, Inc.
- Electrical panel with venting and water protection12 May 2026US 12,627,120 B2Leviton Manufacturing Co., Inc.
- Connector and power apparatus case shell10 Feb 2026US 12,550,276 B2Sungrow Power Supply Co., Ltd.
- Switchgear control device and method based on electrolytic dehumidification membrane with wide working range25 Nov 2025US 12,483,008 B2South China University of Technology
- Cabinet and substation for photovoltaic power generation13 Aug 2026US 2026/0237979 A1Sungrow Power Supply Co., Ltd.
- Sub-module6 Aug 2026US 2026/0229853 A1Ls Electric Co., Ltd.
- Power module and electrical device16 Jul 2026US 2026/0206168 A1Sungrow Power Supply Co., Ltd.
- An outdoor enclosure for electrical equipment and a method thereof4 Jun 2026US 2026/0156759 A1Vertiv Energy Private Limited
- Distribution box with leakage current limiting function23 Apr 2026US 2026/0112865 A1VISION TECH Corporation
Most cited
By later US patents
- Weatherproof cover assembly for electrical wiring devices117US 4,381,063 AGTE Products Corporation · 1983
- Cabinet104US 5,536,079 AAsea Brown Boveri AG · 1996
- Enclosure for housing electronic components101US 5,020,866 AGichner Systems Group, Inc. · 1991
- Explosion proof enclosure100US 4,664,281 AKillark Electric Manufacturing Co. · 1987
- Housing for switched electrical receptacle or the like87US 5,239,129 AHubbell Incorporated · 1993