F16L 58/12
By tar or bitumen
Official title: by tar or bitumen
F16L58/12 (By tar or bitumen) appears on 14 US grants and 4 published applications in this corpus.
Search patents in F16L- Granted patents
- 14
- Published applications
- 4
- Assignees
- 10
- Inventors
- 27
- Latest grant
- 14 Sep 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 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 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Device for controlling a radiation source for hardening lining tubes14 Sep 2021US 11,117,309 B2Sml Verwaltungs GmbH
- Protective system for underground pipes4 Sep 1984US 4,469,469 AThe Trenton Corporation
- Adhesives coatings and laminates utilizing ethylene copolymers and coal-tar pitch20 May 1980US 4,204,022 AUnited States Steel Corporation
- Bituminous composition8 Apr 1980US 4,196,922 AThe British Petroleum Company p.l.c.
- Pipe coating composition6 Feb 1979US 4,138,516 APhillips Petroleum Company
- Device For Controlling A Radiation Source For Hardening Lining Tubes16 Jan 2020US 2020/0016818 A1Sml Verwaltungs GmbH
- Coating system for coated metal or polymeric tube15 Oct 2015US 2015/0292668 A1Sabic Global Technologies B.V.
- Method of coating of a pipeline and an elastic sleeve device for the method16 May 2013US 2013/0118628 A1
- Water Based Pipeline Primer26 Mar 2009US 2009/0082505 A1
Most cited
By later US patents
- Coated metal pipe21US 4,091,134 A1978
- Outer wrap for pipelines18US 4,014,370 A1977
- Protective system for underground pipes14US 4,469,469 AThe Trenton Corporation · 1984
- External pipe coatings for a reinforced pipe12US 3,939,874 ABritish Gas Corporation · 1976
- Coated metal pipe12US 3,967,020 AToyo Soda Manufacturing Co., Ltd. · 1976