How many patents does
Varel International, Ind. have?
patents
659
families
97
granted
142
applications
517
US
209
EP
105
WO
76
CN
45
JP
14
KR
10
GB
3
RoW
197
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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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Varel International, Ind.
Top ten assignees appearing on patents
2018
| varel international, ind. | 25 |
Varel International, Ind.
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| acoustic emission toughness testing for pdc, pcbn, or other hard or superhard materials | 37 | 2010 |
| use of capacitance to analyze polycrystalline diamond | 18 | 2012 |
| wear resistant material at the shirttail edge and leading edge of a rotary cone drill bit | 18 | 2010 |
| casing bit and casing reamer designs | 17 | 2009 |
| method to improve the performance of a leached cutter | 16 | 2012 |
| rock bit having a labyrinth seal/bearing protection structure | 15 | 2011 |
| milling cap for a polycrystalline diamond compact cutter | 13 | 2009 |
| wear resistant material for the shirttail outer surface of a rotary cone drill bit | 13 | 2010 |
| roller cone drill bit with cuttings evacuator | 13 | 2012 |
| acoustic emission toughness testing having smaller noise ratio | 13 | 2010 |