Inventor
CRASS MATTHEW M
US18 patents
⚠️ This page may combine multiple inventors who share the name “CRASS MATTHEW M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SNAP ON TECH INC
10 patentsUS6222342B1Apr 24, 2001
Jump start battery pack and enclosure therefor
SNAP ON TECH INC267 citations98
US5898108AApr 27, 1999
Evaporative emission tester
SNAP ON TECH INC67 citations95
US5763764AJun 9, 1998
Evaporative emission tester
SNAP ON TECH INC43 citations95
US6508313B1Jan 21, 2003
Impact tool battery pack with acoustically-triggered timed impact shutoff
SNAP ON TECH INC118 citations94
US5589644ADec 31, 1996
Torque-angle wrench
SNAP ON TECH INC85 citations94
US6441584B1Aug 27, 2002
Charge maintenance system for lead-acid battery
SNAP ON TECH INC29 citations92
US6297615B1Oct 2, 2001
Battery pack and over-voltage alarm therefor
SNAP ON TECH INC26 citations92
US6344733B1Feb 5, 2002
Portable jump-starting battery pack with charge monitoring system
SNAP ON TECH INC69 citations91
US6252378B1Jun 26, 2001
Usage counter for portable jump-starting battery unit
SNAP ON TECH INC16 citations84
US5610327AMar 11, 1997
Knock sensor-triggered timing light with visible laser retro-reflecting control
SNAP ON TECH INC9 citations72
SNAP ON TOOLS CORP
7 patentsUS7565844B2Jul 28, 2009
Torque-angle instrument
SNAP ON TOOLS CORP53 citations90
US7148698B2Dec 12, 2006
Fuse saving tester for fused circuit
SNAP ON TOOLS CORP18 citations90
US5412312AMay 2, 1995
Frequency and instantaneous voltage level meter
SNAP ON TOOLS CORP16 citations73
US5004984AApr 2, 1991
Magnetic field pickup assembly for diagnositics on specific engine
SNAP ON TOOLS CORP18 citations72
US5182512AJan 26, 1993
Method and apparatus for determining relative contributions of individual cylinders of internal combustion engine using contact tachometer
SNAP ON TOOLS CORP8 citations68
US11296541B2Apr 5, 2022
Power supply continuity system
SNAP ON TOOLS CORP0 citations62
USRE41466EAug 3, 2010
Fuse saving tester for fused circuit
SNAP ON TOOLS CORP0 citations49