H01B 3/26
Asphalts
Official title: asphalts; bitumens; pitches
H01B3/26 (Asphalts) appears on 5 US grants and 1 published applications in this corpus.
Search patents in H01B- Granted patents
- 5
- Published applications
- 1
- Assignees
- 4
- Inventors
- 9
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 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 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Marine cable for offshore wind power having an improved water-tree property26 May 2026US 12,640,284 B2Ls Cable & System Ltd.
- Insulating and anticorrosive composition for electrical devices7 Jul 1998US 5,776,606 APirelli Cavi S.p.A.
- Encapsulant compositions for use in signal transmission devices15 Jan 1991US 4,985,475 AMinnesota Mining and Manufacturing Company
- Coil impregnant with modified asphaltite base4 Aug 1981US 4,282,038 AGeneral Electric Company
- Modified asphaltite potting composition10 May 1977US 4,022,635 AGeneral Electric Company
Most cited
By later US patents
- Encapsulant compositions for use in signal transmission devices5US 4,985,475 AMinnesota Mining and Manufacturing Company · 1991
- Modified asphaltite potting composition4US 4,022,635 AGeneral Electric Company · 1977
- Coil impregnant with modified asphaltite base4US 4,282,038 AGeneral Electric Company · 1981