Assignee
BLACKSTONE CORP
US18 patents
Top patents by PatentIndex Score
US4972683ANov 27, 1990
Condenser with receiver/subcooler
BLACKSTONE CORP61 citations95
US4932469AJun 12, 1990
Automotive condenser
BLACKSTONE CORP65 citations95
US4572184AFeb 25, 1986
Wave guide attachment means and methods
BLACKSTONE CORP93 citations94
US4501321AFeb 26, 1985
After cooler, charge air cooler and turbulator assemblies and methods of making the same
BLACKSTONE CORP96 citations91
US5076557ADec 31, 1991
Twist indicator gasket
BLACKSTONE CORP22 citations89
US4997035AMar 5, 1991
Joint crevice corrosion inhibitor
BLACKSTONE CORP49 citations89
US4465129AAug 14, 1984
Heat exchanger core assembly construction and methods of making the same
BLACKSTONE CORP30 citations84
US7181416B2Feb 20, 2007
Multi-function transaction processing system
BLACKSTONE CORP35 citations83
US4602633AJul 29, 1986
Methods and apparatus for disintegration of urinary calculi under direct vision
BLACKSTONE CORP19 citations78
US4007119AFeb 8, 1977
Methods and apparatus for skimming liquids
BLACKSTONE CORP10 citations72
US3993236ANov 23, 1976
Methods and apparatus for soldering
BLACKSTONE CORP13 citations72
US3991933ANov 16, 1976
Methods and apparatus for soldering
BLACKSTONE CORP10 citations72
US5031924AJul 16, 1991
Twist indicator gasket
BLACKSTONE CORP15 citations71
US4215742AAug 5, 1980
Exhaust coolers
BLACKSTONE CORP7 citations67
US4965431AOct 23, 1990
Sweep welding method and apparatus therefor
BLACKSTONE CORP19 citations65
US4071179AJan 31, 1978
Apparatus and methods for fluxless soldering
BLACKSTONE CORP6 citations61
US3989179ANov 2, 1976
Methods of dip soldering
BLACKSTONE CORP2 citations61
US3931921AJan 13, 1976
Ultrasonic flame soldering tool
BLACKSTONE CORP4 citations61