H01R 39/02
Details for dynamo electric machines
Official title: Details {for dynamo electric machines (for current collectors not particularly for dynamo electric machines H01R39/60, H01R39/64)}
H01R39/02 (Details for dynamo electric machines) appears on 1,878 US grants and 1,366 published applications in this corpus.
Search patents in H01R- Granted patents
- 1,878
- Published applications
- 1,366
- Assignees
- 790
- Inventors
- 3,445
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 17 | 0 |
| 1977 | 14 | 0 |
| 1978 | 22 | 0 |
| 1979 | 15 | 0 |
| 1980 | 16 | 0 |
| 1981 | 20 | 0 |
| 1982 | 45 | 0 |
| 1983 | 36 | 0 |
| 1984 | 19 | 0 |
| 1985 | 32 | 0 |
| 1986 | 25 | 0 |
| 1987 | 32 | 0 |
| 1988 | 30 | 0 |
| 1989 | 38 | 0 |
| 1990 | 21 | 0 |
| 1991 | 29 | 0 |
| 1992 | 36 | 0 |
| 1993 | 31 | 0 |
| 1994 | 25 | 0 |
| 1995 | 29 | 0 |
| 1996 | 33 | 0 |
| 1997 | 33 | 0 |
| 1998 | 42 | 0 |
| 1999 | 43 | 0 |
| 2000 | 38 | 0 |
| 2001 | 49 | 21 |
| 2002 | 33 | 49 |
| 2003 | 45 | 65 |
| 2004 | 57 | 60 |
| 2005 | 57 | 64 |
| 2006 | 49 | 44 |
| 2007 | 38 | 61 |
| 2008 | 31 | 61 |
| 2009 | 45 | 47 |
| 2010 | 40 | 39 |
| 2011 | 35 | 40 |
| 2012 | 24 | 43 |
| 2013 | 25 | 48 |
| 2014 | 30 | 57 |
| 2015 | 38 | 93 |
| 2016 | 62 | 55 |
| 2017 | 58 | 68 |
| 2018 | 62 | 71 |
| 2019 | 77 | 60 |
| 2020 | 57 | 55 |
| 2021 | 42 | 51 |
| 2022 | 60 | 61 |
| 2023 | 41 | 33 |
| 2024 | 41 | 40 |
| 2025 | 38 | 50 |
| 2026 | 23 | 30 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01R 39/38Brush holders684
- H01R 39/18Contacts for co-operation with commutator or slip-ring437
- H01R 39/08Slip-rings341
- H01R 39/04Commutators238
- H01R 39/58Means structurally associated with the current collector for indicating condition thereof149
- H01R 39/32Connections of conductor to commutator segment132
- H01R 39/46Auxiliary means for improving current transfer, or for reducing or preventing sparking117
- H01R 39/14Fastenings of commutators or slip-rings to shafts78
All 15 subgroupsShow fewer
- H01R 39/36Connections of cable or wire to brush70
- H01R 39/34Connections of conductor to slip-ring48
- H01R 39/42Devices for lifting brushes48
- H01R 39/022Characterised by the materials used46
- H01R 39/56Devices for lubricating or polishing slip-rings or commutators during operation of the31
- H01R 39/59Means structurally associated with the brushes for interrupting current16
- H01R 39/44Devices for shifting brushes11
Recent patents
- Grounding brush and associated assembly6 Oct 2026US 12,756,278 B2Aktiebolaget Skf
- Feedback algorithms for manual bailout systems for surgical instruments15 Sep 2026US 12,733,931 B2Cilag GmbH International
- Grounding brush and associated assembly1 Sep 2026US 12,726,071 B2Aktiebolaget Skf
- Internally shunting grounding brush assembly with axially-extending conductive fibers1 Sep 2026US 12,726,088 B2Aktiebolaget Skf
- Electrical machine with a conductive sleeve11 Aug 2026US 12,706,511 B2Aktiebolaget Skf
- Brush holder and brush holder rigging including same24 Sep 2026US 2026/0291322 A1Doosan Enerbility Co., Ltd.
- Rolling brush for electric motor17 Sep 2026US 2026/0280210 A1Schaeffler Technologies AG & Co. KG
- Brush module for supplying current to a rotor of an electric drive machine of a motor vehicle17 Sep 2026US 2026/0280211 A1Schaeffler Technologies AG & Co. KG
- Rotary electrical contact assembly17 Sep 2026US 2026/0280212 A1MERSEN Osterreich Hittisau Ges.m.b.H
- Holder for a helical brush and a grounding brush assembly17 Sep 2026US 2026/0280391 A1
Most cited
By later US patents
- Modular powered surgical instrument with detachable shaft assemblies1,623US 9,743,929 B2Ethicon, Inc. · 2017
- Feedback algorithms for manual bailout systems for surgical instruments1,521US 10,028,761 B2Ethicon, Inc. · 2018
- Surgical stapling instrument system1,519US 9,750,499 B2Ethicon, Inc. · 2017
- Surgical instrument comprising a rotatable shaft1,314US 10,201,364 B2Ethicon, Inc. · 2019
- Electric outlet assembly with rotary receptacles1,056US 6,302,743 B12001