Assignee
PROTOTECH CO
21 patents
Top patents by PatentIndex Score
US4044193AAug 23, 1977
Finely particulated colloidal platinum compound and sol for producing the same, and method of preparation of fuel cell electrodes and the like employing the same
PROTOTECH CO88 citations96
US4331520AMay 25, 1982
Process for the recovery of hydrogen-reduced metals, ions and the like at porous hydrophobic catalytic barriers
PROTOTECH CO75 citations95
US4293396AOct 6, 1981
Thin carbon-cloth-based electrocatalytic gas diffusion electrodes, and electrochemical cells comprising the same
PROTOTECH CO73 citations95
US4248682AFeb 3, 1981
Carbon-cloth-based electrocatalytic gas diffusion electrodes, assembly and electrochemical cells comprising the same
PROTOTECH CO54 citations95
US4399185AAug 16, 1983
Low pressure-drop catalytic mat and method of preparing the same
PROTOTECH CO31 citations92
US3992331ANov 16, 1976
Catalytic platinum metal particles on a substrate and method of preparing the catalyst
PROTOTECH CO38 citations92
US5693298ADec 2, 1997
Method for the catalytic abatement of broiler emissions
PROTOTECH CO19 citations91
US5431887AJul 11, 1995
Flame arresting and contaminant-adsorbing filter apparatus and method in the catalytic abatement of broiler emissions
PROTOTECH CO24 citations91
US4614575ASep 30, 1986
Polymeric hydrogel-containing gas diffusion electrodes and methods of using the same in electrochemical systems
PROTOTECH CO57 citations90
US4422911ADec 27, 1983
Method of recovering hydrogen-reduced metals, ions and the like at porous catalytic barriers and apparatus therefor
PROTOTECH CO48 citations89
US4900712AFeb 13, 1990
Catalytic washcoat and method of preparation of the same
PROTOTECH CO48 citations86
US4082699AApr 4, 1978
Method of preparing catalytic structures from colloidal platinum compounds and such catalytic structures
PROTOTECH CO30 citations82
US3992512ANov 16, 1976
Finely particulated colloidal platinum compound and sol for producing the same, and method of preparation
PROTOTECH CO30 citations82
US5556819ASep 17, 1996
Method of making a flame arresting and contaminant-absorbing filter apparatus
PROTOTECH CO13 citations81
US4647359AMar 3, 1987
Electrocatalytic gas diffusion electrode employing thin carbon cloth layer
PROTOTECH CO49 citations81
US4478696AOct 23, 1984
Ionizable reducing and oxidizing gaseous supply means and process for catalytic barriers and electrodes
PROTOTECH CO10 citations74
US4059541ANov 22, 1977
Platinum colloid sol and method of forming same
PROTOTECH CO16 citations73
US3933684AJan 20, 1976
Method of forming palladium oxide and palladium particles
PROTOTECH CO8 citations73
US4661425AApr 28, 1987
Lithium hydride anode for use in alkaline batteries
PROTOTECH CO2 citations62
US4412894ANov 1, 1983
Process for electrowinning of massive zinc with hydrogen anodes
PROTOTECH CO5 citations62
US4524094AJun 18, 1985
Self-supporting catalytic sleeve formed of interwoven loosely packed multi-fiber strands for receiving air-combustible gas mixtures for flameless catalytic combustion along the sleeve
PROTOTECH CO6 citations61