G11B 7/252
Of layers other than recording layers
Official title: of layers other than recording layers
G11B7/252 (Of layers other than recording layers) appears on 2,939 US grants and 2,207 published applications in this corpus.
Search patents in G11B- Granted patents
- 2,939
- Published applications
- 2,207
- Assignees
- 528
- Inventors
- 4,302
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 13 | 0 |
| 1981 | 16 | 0 |
| 1982 | 20 | 0 |
| 1983 | 27 | 0 |
| 1984 | 21 | 0 |
| 1985 | 27 | 0 |
| 1986 | 38 | 0 |
| 1987 | 61 | 0 |
| 1988 | 65 | 0 |
| 1989 | 67 | 0 |
| 1990 | 77 | 0 |
| 1991 | 75 | 0 |
| 1992 | 83 | 0 |
| 1993 | 100 | 0 |
| 1994 | 78 | 0 |
| 1995 | 86 | 0 |
| 1996 | 74 | 0 |
| 1997 | 80 | 0 |
| 1998 | 75 | 0 |
| 1999 | 104 | 0 |
| 2000 | 103 | 0 |
| 2001 | 126 | 63 |
| 2002 | 116 | 172 |
| 2003 | 135 | 223 |
| 2004 | 146 | 244 |
| 2005 | 127 | 270 |
| 2006 | 141 | 249 |
| 2007 | 100 | 202 |
| 2008 | 114 | 171 |
| 2009 | 87 | 152 |
| 2010 | 108 | 151 |
| 2011 | 91 | 88 |
| 2012 | 114 | 45 |
| 2013 | 81 | 30 |
| 2014 | 67 | 65 |
| 2015 | 24 | 12 |
| 2016 | 9 | 12 |
| 2017 | 8 | 3 |
| 2018 | 3 | 7 |
| 2019 | 6 | 4 |
| 2020 | 3 | 10 |
| 2021 | 4 | 9 |
| 2022 | 3 | 1 |
| 2023 | 7 | 2 |
| 2024 | 8 | 11 |
| 2025 | 5 | 9 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Phase-modulated optical data storage8 Sep 2026US 12,731,610 B2Microsoft Technology Licensing, LLC
- Non-volatile data storage medium and system25 Aug 2026US 12,718,843 B2Ecole Polytechnique Federale De Lausanne (Epfl)
- Data recording on ceramic material12 May 2026US 12,626,722 B2Ceramic Data Solutions GmbH
- Method for long-term storage of information and storage medium therefor7 Apr 2026US 12,594,629 B2Ceramic Data Solutions GmbH
- Nanostructuring from optical recording media9 Dec 2025US 12,494,227 B2The Board of Regents of the Nevada System of Higher Education On Behalf of the University of Nevada, Las Vegas
- Nanostructuring from optical recording media28 May 2026US 2026/0148752 A1Board of Regents of the Nevada System of Higher Education, on behalf of the University of Nevada
- Alkali-free glass sheet12 Mar 2026US 2026/0070834 A1Nippon Electric Glass Co., Ltd.
- Non-volatile data storage medium and system16 Oct 2025US 2025/0322846 A1Ecole Polytechnique Federale De Lausanne (Epfl)
- Nanostructuring from Optical Recording Media25 Sep 2025US 2025/0299696 A1Board of Regents of the Nevada System of Higher Education, on behalf of the University of Nevada
- Human-readable extremely high density permanent data storage22 May 2025US 2025/0166659 A1Brigham Young University
Most cited
By later US patents
- Grooved optical data storage device including a chalcogenide memory layer258US 4,719,594 AEnergy Conversion Devices, Inc. · 1988
- Sputtering target, method of producing the target, optical recording medium fabricated by using the sputtering target, and method of fabricating the optical recording medium220US 6,280,684 B1Ricoh Company, Ltd. · 2001
- Optical recording medium having a plurality of discrete phase change data recording points198US 5,591,501 AEnergy Conversion Devices, Inc. · 1997
- Data storage medium incorporating a transition metal for increased switching speed191US 4,710,899 AEnergy Conversion Devices, Inc. · 1987
- Optical recording media having increased erasability172US 6,011,757 A2000