Individual holder
GUTMARK EPHRAIM J
US·1 granted patent·1 pending application·1 citations·filing 2006–2011
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
2 records- 0151US8387724B2Rotary drill bit with nozzles designed to enhance hydraulic performance and drilling fluid efficiencyGUTMARK EPHRAIM J·Filed 2011·Granted Mar 5, 2013·1 cites·15 claims
- 0232US2009320446A1Performance improvements for pulse detonation enginesGUTMARK EPHRAIM J·Filed 2006·Application pending·0 cites
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