B28B 21/18
Using expansible or retractable mould or core elements
Official title: using expansible or retractable mould or core elements
B28B21/18 (Using expansible or retractable mould or core elements) appears on 9 US grants and 3 published applications in this corpus.
Search patents in B28B- Granted patents
- 9
- Published applications
- 3
- Assignees
- 6
- Inventors
- 16
- Latest grant
- 19 Nov 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 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 | 2 | 0 |
| 1999 | 1 | 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 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Method of making ceramic composite bearings19 Nov 2019US 10,478,996 B1Lancer Systems L.P.
- System and process for molding of parts made of fiber cement25 Apr 2017US 9,630,341 B2161508 Canada Inc.
- System and process for molding of parts made of fiber cement22 Nov 2016US 9,498,897 B2161508 Canada Inc.
- Method of manufacturing a thermal insulation article5 Feb 2013US 8,366,983 B2Siemens Energy, Inc.
- Apparatus for manufacturing bell and spigot pipe moldings21 Dec 1999US 6,004,126 A
- System and process for molding of parts made of fiber cement9 Feb 2017US 2017/0036371 A1161508 Canada Inc.
- System and process for molding of parts made of fiber cement15 Sep 2016US 2016/0263773 A1161508 Canada Inc.
- Method of manufacturing a thermal insulation article28 Jan 2010US 2010/0019412 A1Siemens Power Generation, Inc.
Most cited
By later US patents
- Apparatus for molding tubular parts by isostatic compression5US 4,384,840 ASociete Anonyme dite: Compagnie Generale d'Electricite · 1983
- Apparatus for manufacturing bell and spigot pipe moldings4US 6,004,126 A1999
- Method for rapid molding of elongate concrete articles3US 4,996,013 A1991
- Method of making ceramic composite bearings2US 10,478,996 B1Lancer Systems L.P. · 2019
- Method for subjecting molded article to isostatic pressing2US 5,828,942 ANGK Insulators, Ltd. · 1998