H01R 43/14
Maintenance of current collectors
Official title: Maintenance of current collectors, e.g. reshaping of brushes, cleaning of commutators
H01R43/14 (Maintenance of current collectors) appears on 55 US grants and 49 published applications in this corpus.
Search patents in H01R- Granted patents
- 55
- Published applications
- 49
- Assignees
- 30
- Inventors
- 61
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 2 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 3 | 1 |
| 2007 | 1 | 1 |
| 2008 | 1 | 3 |
| 2009 | 1 | 1 |
| 2010 | 1 | 1 |
| 2011 | 5 | 4 |
| 2012 | 1 | 2 |
| 2013 | 2 | 3 |
| 2014 | 1 | 4 |
| 2015 | 2 | 11 |
| 2016 | 9 | 2 |
| 2017 | 6 | 2 |
| 2018 | 2 | 1 |
| 2019 | 1 | 2 |
| 2020 | 2 | 1 |
| 2021 | 1 | 2 |
| 2022 | 2 | 2 |
| 2023 | 2 | 0 |
| 2024 | 1 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Shaft grounding ring and method for production thereof19 May 2026US 12,633,807 B2KACO GmbH + Co. KG
- Brush holder assembly18 Jun 2024US 12,015,229 B2Cutsforth, Inc.
- Slip ring assembly21 Mar 2023US 11,611,184 B2Stemmann-Technik GmbH
- System and method for repairing a generator main lead28 Feb 2023US 11,594,928 B2Siemens Energy, Inc.
- Brush holder assembly and method15 Nov 2022US 11,502,469 B2Transportation IP Holdings, LLC
- Shaft Grounding Ring and Method for Production Thereof4 Jul 2024US 2024/0223051 A1KACO GmbH + Co. KG
- System and method for repairing a generator main lead4 Aug 2022US 2022/0247247 A1Siemens Energy, Inc.
- Brush holder assembly5 May 2022US 2022/0140557 A1Cutsforth, Inc.
- Slip ring assembly5 Aug 2021US 2021/0242646 A1Stemmann-Technik GmbH
- Brush holder assembly and method29 Apr 2021US 2021/0126415 A1Transportation IP Holdings, LLC
Most cited
By later US patents
- Coaxial connector with enhanced shielding65US 8,376,769 B2Holland Electronics, LLC · 2013
- Brush holder apparatus, brush assembly, and method63US 7,034,430 B2Cutsforth Products, Inc. · 2006
- Brush holder apparatus, brush assembly, and method45US 7,122,935 B2Cutsforth Products, Inc. · 2006
- Brush holder apparatus, brush assembly, and method40US 7,564,160 B2Cutsforth Products, Inc. · 2009
- Brush holder apparatus, brush assembly, and method38US 7,141,906 B2Cutsforth Products, Inc. · 2006