G11B 5/72
Protective coatings
Official title: Protective coatings, e.g. anti-static {or antifriction}
G11B5/72 (Protective coatings) appears on 1,138 US grants and 615 published applications in this corpus.
Search patents in G11B- Granted patents
- 1,138
- Published applications
- 615
- Assignees
- 219
- Inventors
- 1,781
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 6 | 0 |
| 1980 | 7 | 0 |
| 1981 | 6 | 0 |
| 1982 | 5 | 0 |
| 1983 | 13 | 0 |
| 1984 | 10 | 0 |
| 1985 | 28 | 0 |
| 1986 | 19 | 0 |
| 1987 | 45 | 0 |
| 1988 | 37 | 0 |
| 1989 | 38 | 0 |
| 1990 | 21 | 0 |
| 1991 | 31 | 0 |
| 1992 | 41 | 0 |
| 1993 | 18 | 0 |
| 1994 | 20 | 0 |
| 1995 | 27 | 0 |
| 1996 | 47 | 0 |
| 1997 | 33 | 0 |
| 1998 | 40 | 0 |
| 1999 | 42 | 0 |
| 2000 | 39 | 0 |
| 2001 | 31 | 7 |
| 2002 | 23 | 27 |
| 2003 | 38 | 27 |
| 2004 | 35 | 41 |
| 2005 | 26 | 34 |
| 2006 | 17 | 23 |
| 2007 | 21 | 29 |
| 2008 | 17 | 24 |
| 2009 | 14 | 22 |
| 2010 | 19 | 33 |
| 2011 | 20 | 27 |
| 2012 | 14 | 28 |
| 2013 | 20 | 28 |
| 2014 | 30 | 25 |
| 2015 | 32 | 25 |
| 2016 | 21 | 12 |
| 2017 | 17 | 26 |
| 2018 | 23 | 17 |
| 2019 | 11 | 15 |
| 2020 | 15 | 22 |
| 2021 | 20 | 21 |
| 2022 | 23 | 22 |
| 2023 | 19 | 19 |
| 2024 | 20 | 18 |
| 2025 | 14 | 25 |
| 2026 | 14 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- High thermal stability lubricants6 Oct 2026US 12,753,360 B2Western Digital Technologies, Inc.
- Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium8 Sep 2026US 12,729,347 B2Resonac Corporation
- Magnetic recording medium, magnetic tape cartridge, and magnetic recording and reproducing device8 Sep 2026US 12,731,608 B2FUJIFILM Corporation
- Fluorine-containing ether compound, lubricant for magnetic recording medium and magnetic recording medium25 Aug 2026US 12,715,960 B2Resonac Corporation
- Aromatic and aromatic-like containing media lubricants for data storage devices11 Aug 2026US 12,703,835 B2Western Digital Technologies, Inc.
- Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium1 Oct 2026US 2026/0297447 A1Resonac Corporation
- Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium1 Oct 2026US 2026/0297452 A1Resonac Corporation
- Bottle-brush architecture fluorinated lubricants10 Sep 2026US 2026/0268934 A1Western Digital Technologies, Inc.
- Lubricant for magnetic recording media3 Sep 2026US 2026/0258319 A1Resonac Corporation
- Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium27 Aug 2026US 2026/0250591 A1Resonac Corporation
Most cited
By later US patents
- Magnetic recording medium138US 4,425,404 AMatsushita Electric Industrial Co., Ltd. · 1984
- Silicon/carbon protection of metallic magnetic structures125US 4,647,494 AInternational Business Machines Corporation · 1987
- Method of manufacturing a magnetic recording medium124US 5,540,957 AMatsushita Electric Industrial Co., Ltd. · 1996
- Method for producing recording media having protective overcoats of highly tetrahedral amorphous carbon122US 5,858,477 AAkashic Memories Corporation · 1999
- Magnetic tape device and head tracking servo method122US 9,984,716 B1FUJIFILM Corporation · 2018