H01R 39/46
Auxiliary means for improving current transfer, or for reducing or preventing sparking
Official title: Auxiliary means for improving current transfer, or for reducing or preventing sparking or arcing
H01R39/46 (Auxiliary means for improving current transfer, or for reducing or preventing sparking) appears on 117 US grants and 98 published applications in this corpus.
Search patents in H01R- Granted patents
- 117
- Published applications
- 98
- Assignees
- 94
- Inventors
- 285
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 6 | 2 |
| 2002 | 2 | 4 |
| 2003 | 2 | 9 |
| 2004 | 8 | 4 |
| 2005 | 6 | 4 |
| 2006 | 1 | 2 |
| 2007 | 3 | 7 |
| 2008 | 4 | 4 |
| 2009 | 3 | 1 |
| 2010 | 3 | 4 |
| 2011 | 3 | 3 |
| 2012 | 2 | 0 |
| 2013 | 0 | 4 |
| 2014 | 2 | 3 |
| 2015 | 3 | 5 |
| 2016 | 4 | 4 |
| 2017 | 3 | 5 |
| 2018 | 4 | 7 |
| 2019 | 9 | 6 |
| 2020 | 3 | 3 |
| 2021 | 5 | 3 |
| 2022 | 2 | 2 |
| 2023 | 1 | 2 |
| 2024 | 1 | 3 |
| 2025 | 3 | 6 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System and method for controlling current distribution to electrical brushes used in dynamoelectric machine10 Mar 2026US 12,573,923 B2GE Infrastructure Technology LLC
- Slip ring apparatus, yaw system, and wind turbine generator set30 Sep 2025US 12,431,680 B2Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd.
- Electric connection device18 Feb 2025US 12,230,930 B2Zeca S.P.A.
- Systems and methods to mitigate electrical voltage on a rotating shaft immersed in oil18 Feb 2025US 12,231,007 B2Illinois Tool Works Inc.
- Reduction of shaft voltage2 Jan 2024US 11,863,027 B2ABB Schweiz AG
- Shaft grounding member for rolling bearing, and rolling bearing unit23 Jul 2026US 2026/0210407 A1NSK-Warner K. K.
- Diverting device for diverting electrical currents, and machine comprising a diverting device of this type11 Dec 2025US 2025/0379408 A1
- X-ray ct apparatus7 Aug 2025US 2025/0248677 A1FUJIFILM Corporation
- Systems and methods to mitigate electrical voltage on a rotating shaft immersed in oil17 Jul 2025US 2025/0233493 A1Illinois Tool Works Inc.
- System and method for controlling current distribution to electrical brushes used in dynamoelectric machine1 May 2025US 2025/0141323 A1GE Infrastructure Technology LLC
Most cited
By later US patents
- Miniature motor68US 5,895,990 AJohnson Electric S. A. · 1999
- Slip ring brush assembly and method40US 6,281,610 B1General Electric Company · 2001
- Electric manual machine tool driven by an electric motor36US 7,196,440 B2Robert Bosch GmbH · 2007
- Brush holder with coated clamp for dynamo-electric machine30US 4,409,508 AHitachi Chemical Company, Ltd. · 1983
- Slip ring brush assembly and method28US 6,495,940 B2General Electric Company · 2002