G21C 13/0933
Made of prestressed concrete
Official title: {made of prestressed concrete}
G21C13/0933 (Made of prestressed concrete) appears on 17 US grants and 2 published applications in this corpus.
Search patents in G21C- Granted patents
- 17
- Published applications
- 2
- Assignees
- 12
- Inventors
- 41
- Latest grant
- 10 Feb 2015
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 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 | 2 | 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 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- System and method for post-tensioned tendon monitoring10 Feb 2015US 8,953,153 B2Electric Power Research Institute, Inc.
- Joint for interfacing steel head closure and prestressed concrete reactor vessel19 May 1998US 5,754,612 AGeneral Electric Company
- Boiling water reactor with compact containment and simplified safety systems19 Nov 1996US 5,577,085 AGeneral Electric Company
- Pressure vessel apparatus for containing fluid under high temperature and pressure6 Aug 1996US 5,544,210 A
- Prestressed concrete pressure vessel and method for making such a vessel27 Oct 1987US 4,702,052 AT. Y. Lin International
Most cited
By later US patents
- Method and apparatus for inserting post-stressing tendons in concrete structures13US 4,095,326 ASociete Technique pour l'Utilisation de la Precontrainte · 1978
- Holddown arrangement for removable cover of a pressurized nuclear-reactor core and method of using same11US 3,963,565 ASiempelkamp Giesserei KG · 1976
- Nuclear power plant component protection10US 3,930,943 ASiemens Aktiengesellschaft · 1976
- Multi-stage hydraulic stretcher for elongated fasteners9US 4,074,890 ASKF Compagnie d'Applications Mecaniques · 1978
- Boiling water reactor with compact containment and simplified safety systems9US 5,577,085 AGeneral Electric Company · 1996