How many patents does
Wd Media have?
patents
285
families
148
granted
167
applications
118
US
200
CN
39
WO
6
JP
4
EP
1
RoW
35
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The report contains ten-year analysis with the following sections
- patent filing analysis
- worldwide filing analysis
- patent family analysis
- application analysis
- granted analysis
- classification analysis
- citation analysis
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the following tables are just extracts from the report
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Wd Media
Top ten assignees appearing on patents
2009 - 2018
2009
| wd media | 7 |
| komag | 4 |
| hoya corporation | 3 |
2018
| wd media | 9 |
Wd Media
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| composite lubricant for hard disk media | 8 | 2009 |
| test head for optically inspecting workpieces | 7 | 2005 |
| electroless coated disks for high temperature applications and methods of making the same | 7 | 2010 |
| magnetic disk and manufacturing method thereof | 6 | 2008 |
| eccentricity determination for a disk | 6 | 2008 |
| system and method for improving head positioning | 5 | 2011 |
| glass substrates and methods of annealing the same | 5 | 2009 |
| post polish disk cleaning process | 5 | 2010 |
| magnetic particle trapper for a disk sputtering system | 4 | 2009 |
| electro-deposited passivation coatings for patterned media | 4 | 2009 |