Inventor · disambiguated record
Paul Martyn Spear
Also filed as: SPEAR PAUL M · SPEAR PAUL MARTYN
7 granted patents·387 citations·filing 1991–2006
88Inventor score
Top patents by PatentIndex Score
7 records- 0195US5206699ASensing a narrow frequency band of radiation and gemstonesGERSAN ETS·Filed 1991·Granted Apr 27, 1993·116 cites·91 claims
- 0287US8986645B2DiamondTWITCHEN DANIEL JAMES·Filed 2006·Granted Mar 24, 2015·4 cites·21 claims
- 0386US5883389ADistinguishing natural from synthetic diamondsFiled 1994·Granted Mar 16, 1999·76 cites·17 claims
- 0486US5351117ASensing a narrow frequency band and gemstonesGERSAN ETS·Filed 1993·Granted Sep 27, 1994·60 cites·15 claims
- 0583US6014208AExamining a diamondGERSAN ETS·Filed 1996·Granted Jan 11, 2000·67 cites·36 claims
- 0681US5801819ADistinguishing natural from synthetic diamondGERSAN ETS·Filed 1995·Granted Sep 1, 1998·64 cites·19 claims
- 0743US8192713B2Method of incorporating a mark in CVD diamondTWITCHEN DANIEL JAMES·Filed 2004·Granted Jun 5, 2012·0 cites·51 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →