Assignee
HAYES JAMES R
3 granted patents·32 citations·filing 1991–2009
Top patents by PatentIndex Score
3 records- 0168US7867151B2Dual variable resistance control apparatus and system for exercise equipmentHAYES JAMES R·Filed 2009·Granted Jan 11, 2011·8 cites·16 claims
- 0268US7351680B2High performance water-based mud systemHAYES JAMES R·Filed 2004·Granted Apr 1, 2008·11 cites·39 claims
- 0341US5127475ADownhole drilling spotting fluid composition and methodHAYES JAMES R·Filed 1991·Granted Jul 7, 1992·13 cites·13 claims
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