C03B 2215/45
Ring or doughnut disc products or their preforms
C03B2215/45 (Ring or doughnut disc products or their preforms) appears on 7 US grants and 3 published applications in this corpus.
Search patents in C03B- Granted patents
- 7
- Published applications
- 3
- Assignees
- 5
- Inventors
- 19
- Latest grant
- 8 Nov 2011
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Press molding method for manufacturing of glass substrate8 Nov 2011US 8,051,678 B2Minolta Co., Ltd.
- Method of manufacturing glass substrate for information recording medium8 Jul 2008US 7,395,679 B2Konica Minolta Opto, Inc.
- Method of manufacturing a molded plastic article and a glass molding plastics4 Feb 2003US 6,514,444 B1Suzuka Fuji Xerox Co., Ltd.
- Carbon coated metallic mold for making a glass plate11 May 1999US 5,902,369 A
- Molded glass plates produced by mold with modified surface23 Jun 1998US 5,770,294 A
- Method of manufacturing glass substrate for information recording medium22 Sep 2005US 2005/0204777 A1Konica Minolta Opto, Inc.
- Press molding method for glass and manufacturing method for glass substrate using this method7 Oct 2004US 2004/0194508 A1Minolta Co., Ltd.
- Press molding method for glass and manufacturing method for glass substrate using this method17 Jul 2003US 2003/0134734 A1
Most cited
By later US patents
- System for stamping an optical storage disk56US 5,427,599 AInternational Business Machines Corporation · 1995
- Method of manufacturing an optical Storage disk16US 5,213,600 AInternational Business Machines Corporation · 1993
- Molded glass plates produced by mold with modified surface4US 5,770,294 A1998
- Carbon coated metallic mold for making a glass plate4US 5,902,369 A1999
- Method of manufacturing a molded plastic article and a glass molding plastics2US 6,514,444 B1Suzuka Fuji Xerox Co., Ltd. · 2003