G11B 7/2538
Polycycloolefins [pco]
Official title: polycycloolefins [PCO]
G11B7/2538 (Polycycloolefins [pco]) appears on 60 US grants and 46 published applications in this corpus.
Search patents in G11B- Granted patents
- 60
- Published applications
- 46
- Assignees
- 26
- Inventors
- 173
- Latest grant
- 16 Sep 2014
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 4 | 3 |
| 2003 | 0 | 4 |
| 2004 | 3 | 4 |
| 2005 | 1 | 5 |
| 2006 | 2 | 5 |
| 2007 | 2 | 5 |
| 2008 | 1 | 1 |
| 2009 | 1 | 8 |
| 2010 | 4 | 5 |
| 2011 | 4 | 3 |
| 2012 | 2 | 0 |
| 2013 | 1 | 2 |
| 2014 | 3 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Optical information reproduction device, optical information reproduction method, and information recording medium16 Sep 2014US 8,837,265 B2Panasonic Corporation
- Method for producing holographic photopolymers on polymer films6 May 2014US 8,715,888 B2Bayer MaterialScience AG
- Film for producing a sheet for a multilayer optical recording medium21 Jan 2014US 8,632,871 B2Lintec Corporation
- Sheet for multilayer optical recording medium and multilayer optical recording medium using the same16 Apr 2013US 8,420,199 B2Lintec Corporation
- Optical recording medium and method for manufacturing the same23 Oct 2012US 8,293,352 B2Sony Corporation
- Film for producing a sheet for a multilayer optical recording medium1 Aug 2013US 2013/0196115 A1Lintec Corporation
- Optical information reproduction device, optical information reproduction method, and information recording medium30 May 2013US 2013/0135982 A1Panasonic Corporation
- Method for producing holographic photopolymers on polymer films22 Dec 2011US 2011/0311905 A1Bayer MaterialScience AG
- Information recording medium and method for producing the same, recording or reproducing method, and optical information recording and reproducing device21 Apr 2011US 2011/0090780 A1Panasonic Corporation
- Sheet for multilayer optical recording medium and multilayer optical recording medium using the same14 Apr 2011US 2011/0085437 A1Lintec Corporation
Most cited
By later US patents
- Cycloolefin type random copolymer compositions and uses thereof41US 4,874,808 A1989
- Cycloolefin random copolymer and process for preparing same36US 5,272,235 AMitsui Petrochemical Industries, Ltd. · 1993
- Process for preparation and purification of material of a cycloolefin copolymer31US 5,498,677 AHoechst Aktiengesellschaft · 1996
- Process for making a polymer for an optical substrate by hydrogenating a cycloolefin copolymer19US 5,206,306 AThe B. F. Goodrich Company · 1993
- Optical recording media17US 4,994,354 AMitsui Petrochemical Industries, Ltd. · 1991