H01R 39/28
Roller contacts
Official title: Roller contacts; Ball contacts
H01R39/28 (Roller contacts) appears on 21 US grants and 19 published applications in this corpus.
Search patents in H01R- Granted patents
- 21
- Published applications
- 19
- Assignees
- 17
- Inventors
- 40
- Latest grant
- 1 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 1 | 2 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 3 |
| 2018 | 2 | 3 |
| 2019 | 3 | 0 |
| 2020 | 2 | 0 |
| 2021 | 2 | 1 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Rotating brushes for electric motors1 Apr 2025US 12,266,987 B1
- Reduced friction conductive assembly for bearings23 Aug 2022US 11,421,739 B2Aktiebolaget Skf
- Belt structures for rotary electrical contact device8 Jun 2021US 11,031,744 B1National Technology & Engineering Solutions of Sandia, LLC
- Belt structures for rotary electrical contact device6 Apr 2021US 10,971,876 B1National Technology & Engineering Solutions of Sandia, LLC
- Driving module, restoration method and imaging device23 Jun 2020US 10,693,400 B1Wistron Corporation
- Rotary electrical contact assembly17 Sep 2026US 2026/0280212 A1MERSEN Osterreich Hittisau Ges.m.b.H
- Rotary connector27 Aug 2026US 2026/0254183 A1Eagle Industry Co., Ltd.
- Rotating brushes for electric motors3 Apr 2025US 2025/0112529 A1
- Electrical contact arrangement22 Dec 2022US 2022/0407273 A1cutpack.com GmbH
- Reduced friction conductive assembly for bearings23 Sep 2021US 2021/0293279 A1Aktiebolaget Skf
Most cited
By later US patents
- Slip ring, support mechanism, and plasma processing apparatus47US 10,665,434 B2Tokyo Electron Limited · 2020
- Rolling electrical contactor15US 6,040,705 AElectro Scientific Industries, Inc. · 2000
- Alternator15US 6,489,702 B1Prestolite Electric Incorporated · 2002
- Contact apparatus for coupling terminals which move with respect to one another8US 5,178,546 AITT Corporation · 1993
- Modular telephone jack for multi-occupant dwelling7US 6,773,282 B2Verizon Services Corp. · 2004