Individual holder
GRIFFIN NIGEL D
GB·3 granted patents·1 pending application·97 citations·filing 1990–2010
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
4 records- 0194US5111895ACutting elements for rotary drill bitsGRIFFIN NIGEL D·Filed 1990·Granted May 12, 1992·63 cites·15 claims
- 0277US8910730B2Cutting elementGRIFFIN NIGEL D·Filed 2010·Granted Dec 16, 2014·6 cites·23 claims
- 0355US5060739ACutter assemblies for rotary drill bits, and method of manufacturing sameGRIFFIN NIGEL D·Filed 1990·Granted Oct 29, 1991·28 cites·15 claims
- 0441US2006086540A1Dual-Edge Working Surfaces for Polycrystalline Diamond Cutting ElementsGRIFFIN NIGEL D·Filed 2005·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →