G11C 13/041
Using photochromic storage elements
Official title: {using photochromic storage elements (G11C13/042 takes precedence)}
G11C13/041 (Using photochromic storage elements) appears on 76 US grants and 39 published applications in this corpus.
Search patents in G11C- Granted patents
- 76
- Published applications
- 39
- Assignees
- 49
- Inventors
- 136
- Latest grant
- 22 Mar 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 0 | 0 |
| 1978 | 5 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 3 |
| 2003 | 3 | 3 |
| 2004 | 2 | 4 |
| 2005 | 5 | 4 |
| 2006 | 3 | 5 |
| 2007 | 0 | 0 |
| 2008 | 4 | 4 |
| 2009 | 0 | 0 |
| 2010 | 4 | 5 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 1 | 1 |
| 2014 | 3 | 2 |
| 2015 | 1 | 1 |
| 2016 | 1 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 2 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Photochromic hydrazone switches22 Mar 2022US 11,279,677 B2Trustees of Dartmouth College
- Integrated optical transmission element5 Jan 2021US 10,884,315 B2International Business Machines Corporation
- 3D optical memory storage cells17 Oct 2017US 9,792,945 B1Seagate Technology LLC
- Optical data store and method for storage of data in an optical data store27 Dec 2016US 9,530,498 B2Actilor GmbH
- Metal alloys for the reflective or the semi-reflective layer of an optical storage medium3 Nov 2015US 9,177,594 B2Target Technology Company, LLC
- Optical storage medium and super-resolution information read-write method and apparatus based on the same17 Sep 2026US 2026/0279443 A1Shanghai Institute of Optics And Fine Mechanics, Chinese Academy of Sciences
- Optical quaternary content-addressable memory and its optical computing applications4 Sep 2025US 2025/0279141 A1Hewlett Packard Enterprise Development LP
- Improvements in optical data storage8 Aug 2024US 2024/0265941 A1University of South Australia
- Integrated Optical Transmission Element26 Sep 2019US 2019/0294021 A1International Business Machines.Corp
- Photochromic hydrazone switches22 Aug 2019US 2019/0256472 A1Trustees of Dartmouth College
Most cited
By later US patents
- Femtosecond laser writing of glass, including borosilicate, sulfide, and lead glasses112US 6,573,026 B1Corning Incorporated · 2003
- Method for three dimensional optical data storage and retrieval107US 5,289,407 ACornell Research Foundation, Inc. · 1994
- Three-dimensional systems92US 4,288,861 AFormigraphic Engine Corporation · 1981
- Method and media for accessing data in three dimensions91US 4,471,470 AFormigraphic Engine Corporation · 1984
- Three dimensional systems85US 4,078,229 A1978