Assignee

ACHILLES ROY DERRICK

ZA·2 granted patents·80 citations·filing 2004–2010

Technology mixB22F1 B23B1 C22C1 C23C1 E21B1 Y10T1

Top patents by PatentIndex Score

2 records

0196US8172012B2Cutting tool insert and drill bit so equippedACHILLES ROY DERRICK·Filed 2010·Granted May 8, 2012·29 cites·24 claims
0287US7575805B2Polycrystalline diamond abrasive elementsACHILLES ROY DERRICK·Filed 2004·Granted Aug 18, 2009·51 cites·18 claims

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