H01B 7/0291
Comprising two or more layers of insulation having different electrical properties
Official title: {comprising two or more layers of insulation having different electrical properties}
H01B7/0291 (Comprising two or more layers of insulation having different electrical properties) appears on 28 US grants and 42 published applications in this corpus.
Search patents in H01B- Granted patents
- 28
- Published applications
- 42
- Assignees
- 31
- Inventors
- 119
- Latest grant
- 9 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 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 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 3 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 2 |
| 2014 | 1 | 1 |
| 2015 | 1 | 3 |
| 2016 | 0 | 2 |
| 2017 | 1 | 0 |
| 2018 | 0 | 2 |
| 2019 | 1 | 7 |
| 2020 | 7 | 2 |
| 2021 | 2 | 4 |
| 2022 | 1 | 5 |
| 2023 | 1 | 2 |
| 2024 | 5 | 2 |
| 2025 | 2 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electrical cable for the aerospace field9 Sep 2025US 12,412,679 B2Nexans
- Insulated wire and preparation method thereof, coil, and electronic/electrical equipment10 Jun 2025US 12,327,662 B1Well Ascent Electronic (Ganzhou) Co., Ltd.
- Submarine power cable24 Dec 2024US 12,176,128 B2Nexans
- Insulated wire24 Sep 2024US 12,100,532 B2Proterial, Ltd.
- Polypropylene cable protective layer and preparation method thereof27 Aug 2024US 12,073,961 B2Electric Power Research Institute. China Southern Power Grid
- Power cable25 Jun 2026US 2026/0179804 A1Nexans
- Silicone free fire safety wire construction1 Jan 2026US 2026/0004950 A1Radix Wire & Cable, LLC
- Insulated wires and methods, and apparatuses for fabricating insulated wire segments27 Nov 2025US 2025/0364158 A1The Boeing Company
- Communication cable and wire harness using same22 Aug 2024US 2024/0282476 A1Yazaki Corporation
- Polypropylene cable protective layer and preparation method thereof4 Jul 2024US 2024/0221971 A1Electric Power Research Institute. China Southern Power Grid
Most cited
By later US patents
- Extra-high-voltage power cable39US 4,997,995 APirelli General plc · 1991
- Electrical cables27US 7,288,721 B2Schlumberger Technology Corporation · 2007
- Graded insulation cable construction, and method of overcoming stresses therein14US 4,132,858 AGeneral Electric Company · 1979
- Partial discharge resistant electrical cable and method14US 6,924,436 B2Schlumberger Technology Corporation · 2005
- Direct current cable with resistivity graded insulation, and a method of transmitting direct current electrical energy13US 4,075,421 AGeneral Electric Company · 1978