Inventor · disambiguated record
Matthew M. Crass
Also filed as: CRASS MATTHEW M
17 granted patents·839 citations·filing 1989–2017
95Inventor score
Top patents by PatentIndex Score
17 records- 0196US6222342B1Jump start battery pack and enclosure thereforSNAP ON TECH INC·Filed 2000·Granted Apr 24, 2001·267 cites·21 claims
- 0294US6508313B1Impact tool battery pack with acoustically-triggered timed impact shutoffSNAP ON TECH INC·Filed 2001·Granted Jan 21, 2003·118 cites·28 claims
- 0393US7565844B2Torque-angle instrumentSNAP ON TOOLS CORP·Filed 2006·Granted Jul 28, 2009·53 cites·15 claims
- 0493US5898108AEvaporative emission testerSNAP ON TECH INC·Filed 1997·Granted Apr 27, 1999·67 cites·10 claims
- 0593US5589644ATorque-angle wrenchSNAP ON TECH INC·Filed 1994·Granted Dec 31, 1996·85 cites·15 claims
- 0687US5763764AEvaporative emission testerSNAP ON TECH INC·Filed 1995·Granted Jun 9, 1998·43 cites·19 claims
- 0780US8720239B2Tool box locking mechanisms for remote activationCRASS MATTHEW M·Filed 2011·Granted May 13, 2014·15 cites·12 claims
- 0880US6344733B1Portable jump-starting battery pack with charge monitoring systemSNAP ON TECH INC·Filed 2000·Granted Feb 5, 2002·69 cites·12 claims
- 0971US6441584B1Charge maintenance system for lead-acid batterySNAP ON TECH INC·Filed 2000·Granted Aug 27, 2002·29 cites·20 claims
- 1068US6297615B1Battery pack and over-voltage alarm thereforSNAP ON TECH INC·Filed 2000·Granted Oct 2, 2001·26 cites·3 claims
- 1162US6252378B1Usage counter for portable jump-starting battery unitSNAP ON TECH INC·Filed 2000·Granted Jun 26, 2001·16 cites·12 claims
- 1261US5004984AMagnetic field pickup assembly for diagnositics on specific engineSNAP ON TOOLS CORP·Filed 1989·Granted Apr 2, 1991·18 cites·10 claims
- 1353US5412312AFrequency and instantaneous voltage level meterSNAP ON TOOLS CORP·Filed 1992·Granted May 2, 1995·16 cites·19 claims
- 1452US11296541B2Power supply continuity systemSNAP ON TOOLS CORP·Filed 2017·Granted Apr 5, 2022·0 cites·10 claims
- 1548US5610327AKnock sensor-triggered timing light with visible laser retro-reflecting controlSNAP ON TECH INC·Filed 1995·Granted Mar 11, 1997·9 cites·20 claims
- 1644USRE41466EFuse saving tester for fused circuitSNAP ON TOOLS CORP·Filed 2008·Granted Aug 3, 2010·0 cites·30 claims
- 1734US5182512AMethod and apparatus for determining relative contributions of individual cylinders of internal combustion engine using contact tachometerSNAP ON TOOLS CORP·Filed 1990·Granted Jan 26, 1993·8 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →