G11B 7/248
Porphines
Official title: porphines; azaporphines, e.g. phthalocyanines
G11B7/248 (Porphines) appears on 485 US grants and 324 published applications in this corpus.
Search patents in G11B- Granted patents
- 485
- Published applications
- 324
- Assignees
- 129
- Inventors
- 957
- Latest grant
- 5 Jul 2016
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 15 | 0 |
| 1989 | 14 | 0 |
| 1990 | 17 | 0 |
| 1991 | 26 | 0 |
| 1992 | 24 | 0 |
| 1993 | 33 | 0 |
| 1994 | 22 | 0 |
| 1995 | 26 | 0 |
| 1996 | 20 | 0 |
| 1997 | 19 | 0 |
| 1998 | 12 | 0 |
| 1999 | 20 | 0 |
| 2000 | 15 | 0 |
| 2001 | 21 | 1 |
| 2002 | 12 | 32 |
| 2003 | 13 | 47 |
| 2004 | 23 | 30 |
| 2005 | 17 | 55 |
| 2006 | 20 | 44 |
| 2007 | 14 | 31 |
| 2008 | 19 | 30 |
| 2009 | 12 | 25 |
| 2010 | 16 | 12 |
| 2011 | 13 | 7 |
| 2012 | 11 | 0 |
| 2013 | 4 | 5 |
| 2014 | 3 | 2 |
| 2015 | 7 | 3 |
| 2016 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- μ-polyoxo crosslinked phthalocyanine compound, preparing method thereof, and near infrared ray absorbing and reflecting composition using the same5 Jul 2016US 9,382,384 B2Nano Cms Co., Ltd.
- Holographic data storage device and method of making20 Oct 2015US 9,164,480 B2General Electric Company
- Stacked film reflective layers for multi-layer optical data storage4 Aug 2015US 9,099,104 B2General Electric Company
- Data storage devices and methods28 Jul 2015US 9,093,082 B2General Electric Company
- Optical information recording medium14 Jul 2015US 9,082,430 B2Sony Corporation
- Μ-polyoxo crosslinked phthalocyanine compound, preparing method thereof, and near infrared ray absorbing and reflecting composition using the same2 Jul 2015US 2015/0183938 A1Nano Cms Co., Ltd.
- Stacked film reflective layers for multi-layer optical data storage12 Mar 2015US 2015/0071046 A1General Electric Company
- Optical information recording medium5 Feb 2015US 2015/0036473 A1Sony Corporation
- Stacked film reflective layers for multi-layer optical data storage12 Jun 2014US 2014/0162013 A1General Electric Company
- Optical information recording medium23 Jan 2014US 2014/0023816 A1FUJIFILM Corporation
Most cited
By later US patents
- Erasable optical data storage medium124US 4,719,615 AOptical Data, Inc. · 1988
- Reduced thickness of a light transmissive layer for a high density optical disc92US 6,246,656 B1Sony Corporation · 2001
- Processes for the preparation of titanium phthalocyanines85US 5,166,339 AXerox Corporation · 1992
- Information recording medium and information recording method61US 5,312,713 AMita Industrial Co., Ltd. · 1994
- Two-photon or higher-order absorbing optical materials and methods of use60US 6,267,913 B1California Institute of Technology · 2001