H01R 39/025
Conductive materials
Official title: {Conductive materials}
H01R39/025 (Conductive materials) appears on 37 US grants and 39 published applications in this corpus.
Search patents in H01R- Granted patents
- 37
- Published applications
- 39
- Assignees
- 36
- Inventors
- 133
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 2 |
| 2004 | 2 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 2 |
| 2013 | 0 | 2 |
| 2014 | 0 | 2 |
| 2015 | 0 | 4 |
| 2016 | 1 | 3 |
| 2017 | 3 | 4 |
| 2018 | 2 | 0 |
| 2019 | 6 | 6 |
| 2020 | 1 | 4 |
| 2021 | 4 | 1 |
| 2022 | 3 | 3 |
| 2023 | 3 | 1 |
| 2024 | 0 | 1 |
| 2025 | 1 | 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
- Arrangement for producing an electrically conductive connection between a first machine element and a second machine element17 Jun 2025US 12,334,669 B2Carl Freudenberg KG
- Rotary electrical transformer with preferred lubricant3 Oct 2023US 11,776,741 B2Cr Flight L.L.C.
- Contact ring for highly dynamic applications13 Jun 2023US 11,677,202 B2TE Connectivity Germany GmbH
- Electrical contact device and rotating electric machine including the electrical contact device6 Jun 2023US 11,670,901 B2Denso Corporation
- Shaft Grounding Ring and Method for Production Thereof4 Jul 2024US 2024/0223051 A1KACO GmbH + Co. KG
- Rotary electrical transformer with preferred lubricant30 Mar 2023US 2023/0102299 A1Cr Flight L.L.C.
- Arrangement for producing an electrically conductive connection between a first machine element and a second machine element1 Dec 2022US 2022/0384986 A1Carl Freudenberg KG
- Contact Ring for Highly Dynamic Applications19 May 2022US 2022/0158398 A1TE Connectivity Germany GmbH
- Slip ring body24 Mar 2022US 2022/0094126 A1Flender GmbH
Most cited
By later US patents
- Commutator16US 5,629,576 AMitsuba Electric Manufacturing Co., Ltd. · 1997
- Gasoline resistant commutator15US 4,399,383 AMitsuba Electric Mfg. Co., Ltd. · 1983
- Material for sliding contact, composite clad material, and small-sized direct current motor using the same10US 6,245,166 B1Mabuchi Motor Co., Ltd. · 2001
- Method of manufacturing a commutator9US 4,283,841 AMitsuba Electric Mfg. Co., Ltd. · 1981
- Plane commutator of motor having a base made of conductive powder7US 6,833,650 B2Denso Corporation · 2004