Individual holder
ROBERTS WILLIAM M
US·2 granted patents·1 pending application·46 citations·filing 1986–2012
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0187US8074718B2Ball seat subROBERTS WILLIAM M·Filed 2009·Granted Dec 13, 2011·32 cites·20 claims
- 0246US4771881AMaterials handling systemROBERTS WILLIAM M·Filed 1986·Granted Sep 20, 1988·14 cites·12 claims
- 0340US2013341049A1Lock mechanism for downhole toolsROBERTS WILLIAM M·Filed 2012·Application pending·0 cites
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