H01R 4/70
Insulation of connections
Official title: Insulation of connections (end caps H01R4/22)
H01R4/70 (Insulation of connections) appears on 1,317 US grants and 1,141 published applications in this corpus.
Search patents in H01R- Granted patents
- 1,317
- Published applications
- 1,141
- Assignees
- 585
- Inventors
- 2,575
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 3 | 0 |
| 1978 | 7 | 0 |
| 1979 | 5 | 0 |
| 1980 | 14 | 0 |
| 1981 | 16 | 0 |
| 1982 | 8 | 0 |
| 1983 | 12 | 0 |
| 1984 | 12 | 0 |
| 1985 | 15 | 0 |
| 1986 | 10 | 0 |
| 1987 | 17 | 0 |
| 1988 | 19 | 0 |
| 1989 | 30 | 0 |
| 1990 | 17 | 0 |
| 1991 | 17 | 0 |
| 1992 | 28 | 0 |
| 1993 | 16 | 0 |
| 1994 | 29 | 0 |
| 1995 | 27 | 0 |
| 1996 | 22 | 0 |
| 1997 | 20 | 0 |
| 1998 | 23 | 0 |
| 1999 | 18 | 0 |
| 2000 | 18 | 0 |
| 2001 | 12 | 5 |
| 2002 | 19 | 13 |
| 2003 | 11 | 19 |
| 2004 | 13 | 19 |
| 2005 | 15 | 22 |
| 2006 | 20 | 22 |
| 2007 | 23 | 26 |
| 2008 | 22 | 25 |
| 2009 | 15 | 16 |
| 2010 | 24 | 29 |
| 2011 | 15 | 26 |
| 2012 | 20 | 33 |
| 2013 | 23 | 46 |
| 2014 | 27 | 43 |
| 2015 | 39 | 51 |
| 2016 | 41 | 53 |
| 2017 | 63 | 55 |
| 2018 | 65 | 89 |
| 2019 | 88 | 70 |
| 2020 | 69 | 80 |
| 2021 | 63 | 70 |
| 2022 | 56 | 76 |
| 2023 | 39 | 59 |
| 2024 | 45 | 72 |
| 2025 | 52 | 75 |
| 2026 | 26 | 47 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Unipolar terminal block having a slipping-prevention portion8 Sep 2026US 12,731,919 B2Yazaki Corporation
- Connector cover assemblies8 Sep 2026US 12,731,976 B2Hubbell Incorporated
- Cable connection structure and method for manufacturing cable connection structure25 Aug 2026US 12,718,971 B2Proterial, Ltd.
- Insulation piercing electrical connector18 Aug 2026US 12,712,292 B2Nextpower LLC
- Power feeder18 Aug 2026US 12,712,386 B2Daifuku Co., Ltd.
- Module connector for electrically connecting to a module pole connection of a battery module, module pole connection and connecting assembly8 Oct 2026US 2026/0312301 A1Audi AG
- Device for protecting against partial discharges8 Oct 2026US 2026/0312308 A1Souriau
- Protective configuration for electrical outlet terminals1 Oct 2026US 2026/0302656 A1Zhejiang Yuchuang Electronic Technology Co, Ltd.
- Terminal with cover27 Aug 2026US 2026/0254137 A1Sumitomo Wiring Systems, Ltd.
- Electrical junction with insulated screw connection for busbars20 Aug 2026US 2026/0246164 A1Aptiv Technologies AG
Most cited
By later US patents
- Method and assembly of member and terminal1,576US 5,611,709 AValleylab, Inc. · 1997
- Sealed multiple-contact electrical connector308US 6,048,224 ATekonsha Engineering Company · 2000
- Repairable cable assembly254US 5,380,224 AAmetek Aerospace Products, Inc. · 1995
- Method and apparatus for forming an electrical connection185US 5,579,575 ARaychem Corporation · 1996
- Method of producing insulated terminals160US 4,260,212 AAMP Incorporated · 1981