Assignee
MASSE ROGER
4 granted patents·42 citations·filing 1978–1988
Top patents by PatentIndex Score
4 records- 0180US4682819AMethod and apparatus for drilling hard materialMASSE ROGER·Filed 1984·Granted Jul 28, 1987·26 cites·9 claims
- 0240US4840235AImpact hammer assembly for drilling rockMASSE ROGER·Filed 1988·Granted Jun 20, 1989·14 cites·11 claims
- 0326US4762188ADrill bitMASSE ROGER·Filed 1987·Granted Aug 9, 1988·2 cites·11 claims
- 0426US4252030AForce converterMASSE ROGER·Filed 1978·Granted Feb 24, 1981·0 cites·4 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →