F16L 41/028
Of concrete, cement or asbestos-cement
Official title: {of concrete, cement or asbestos-cement}
F16L41/028 (Of concrete, cement or asbestos-cement) appears on 3 US grants and 1 published applications in this corpus.
Search patents in F16L- Granted patents
- 3
- Published applications
- 1
- Assignees
- 2
- Inventors
- 9
- Latest grant
- 25 Mar 2008
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 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 | 1 | 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 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method of reinforcing a cylindrical pipeline and prefabricated plate used in such method25 Mar 2008US 7,347,227 B2Freyssinet International (STUP)
- Device for joining of pipelines20 Nov 1990US 4,971,307 ADen Norske Stats Oljeselskap A.S.
- Refractory pipe fittings and production thereof25 Jul 1978US 4,102,972 A
Most cited
By later US patents