H01B 7/288
Using hygroscopic material or material swelling in the presence of liquid
Official title: using hygroscopic material or material swelling in the presence of liquid
H01B7/288 (Using hygroscopic material or material swelling in the presence of liquid) appears on 109 US grants and 52 published applications in this corpus.
Search patents in H01B- Granted patents
- 109
- Published applications
- 52
- Assignees
- 78
- Inventors
- 249
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 8 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 7 | 2 |
| 2002 | 2 | 2 |
| 2003 | 4 | 6 |
| 2004 | 1 | 4 |
| 2005 | 3 | 4 |
| 2006 | 2 | 2 |
| 2007 | 3 | 2 |
| 2008 | 2 | 2 |
| 2009 | 1 | 3 |
| 2010 | 4 | 1 |
| 2011 | 1 | 3 |
| 2012 | 2 | 1 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 2 |
| 2016 | 3 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 1 |
| 2019 | 0 | 4 |
| 2020 | 6 | 2 |
| 2021 | 0 | 1 |
| 2022 | 2 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 2 |
| 2025 | 1 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Water swellable semi-conductive tape23 Jun 2026US 12,665,106 B2DelStar Technologies, Inc.
- AC submarine power cable with reduced losses22 Jul 2025US 12,367,991 B2NKT HV Cables AB
- HVDC power cable with water-blocking capability6 Sep 2022US 11,437,166 B2NKT HV Cables AB
- Power cable with conductor strand fill containing recycled crosslinked compounds9 Aug 2022US 11,410,795 B2Prysmian S P A.
- Electrical conductor comprised of solid segments17 Nov 2020US 10,839,986 B2Nexans
- Water-absorbent resin composition, water-blocking material, and cable2 Apr 2026US 2026/0092132 A1Sumitomo Seika Chemicals Co., Ltd.
- Dynamic power cable arrangement with moisture ingress detection device5 Feb 2026US 2026/0036446 A1
- Multi-core cable3 Jul 2025US 2025/0218621 A1Sumitomo Electric Industries, Ltd.
- Composite water blocking and shielding tape for water blocking in a compact cable4 Jul 2024US 2024/0221975 A1Ppc Broadband, Inc.
- Water swellable semi-conductive tape2 May 2024US 2024/0145126 A1DelStar Technologies, Inc.
Most cited
By later US patents
- Water blocking strength members268US 5,389,442 AAT&T Corp. · 1995
- Electrical cable having a semiconductive water-blocking expanded layer240US 6,455,769 B1Pirelli Cavi e Sistemi S.p,A. · 2002
- Water blocking electrical cable224US 7,750,244 B1General Cable Technologies Corporation · 2010
- Communication cable having water blocking provisions in core119US 4,909,592 AAmerican Telephone and Telegraph Company, AT&T Bell Laboratories · 1990
- Communication cable having water blocking strength members74US 4,913,517 AAmerican Telephone and Telegraph Company, AT&T Bell Laboratories · 1990