H01B 7/20
Metal tubes
Official title: Metal tubes, e.g. lead sheaths
H01B7/20 (Metal tubes) appears on 112 US grants and 124 published applications in this corpus.
Search patents in H01B- Granted patents
- 112
- Published applications
- 124
- Assignees
- 70
- Inventors
- 304
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 3 |
| 2014 | 0 | 1 |
| 2015 | 2 | 5 |
| 2016 | 1 | 3 |
| 2017 | 5 | 7 |
| 2018 | 8 | 8 |
| 2019 | 6 | 14 |
| 2020 | 16 | 15 |
| 2021 | 9 | 13 |
| 2022 | 8 | 7 |
| 2023 | 5 | 16 |
| 2024 | 7 | 13 |
| 2025 | 7 | 14 |
| 2026 | 9 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Remediation of lead sheathed installed telecommunications cables15 Sep 2026US 12,738,397 B1CenturyLink Intellectual Property LLC
- Composite conductive structure and magnetic component18 Aug 2026US 12,712,096 B2Delta Electronics, Inc.
- Cable substitute for mineral-insulated cables in nuclear facilities7 Jul 2026US 12,676,250 B2RSCC Wire & Cable LLC
- Marine cable for offshore wind power having an improved water-tree property26 May 2026US 12,640,284 B2Ls Cable & System Ltd.
- MC cable with tearable assembly tape17 Mar 2026US 12,580,097 B2AFC Cable Systems, Inc.
- Photoelectric Composite Flexible High-Voltage Reel Cable29 Jan 2026US 2026/0031252 A1Zhongchen Cable (Jiangxi) Co., Ltd
- Cable and Cable Assembly20 Nov 2025US 2025/0357019 A1Tyco Electronics (Dongguan) Ltd.
- Cables having interlocking armor layers formed from an improved aluminum alloy and methods of forming the same9 Oct 2025US 2025/0316406 A1Prysmian S P A.
- Flexible electrical conductor comprising elements connected to one another by tig welding, and method for manufacturing such a flexible electrical conductor2 Oct 2025US 2025/0308724 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Submarine dc power cable11 Sep 2025US 2025/0285786 A1NKT HV Cables AB
Most cited
By later US patents
- Moisture-proofing electrical cable252US 4,398,058 AKabelmetal Electro GmbH · 1983
- Metallic sheath cable143US 5,189,719 AColeman Cable Systems, Inc. · 1993
- Electrical cable in reeled tubing56US 5,191,173 AOtis Engineering Corporation · 1993
- Cable having an at least partially oxidized armor layer44US 5,777,271 ACommScope, Inc. · 1998
- Metallic sheath electrical cable41US 5,001,303 AColeman Cable Systems, Inc. · 1991