Assignee
ESB INC
64 patents
Top patents by PatentIndex Score
US4255746AMar 10, 1981
Emergency lighting and fire detector system
ESB INC63 citations96
US4206398AJun 3, 1980
Method of and apparatus for detecting ground faults in isolated power supply systems
ESB INC78 citations94
US4199754AApr 22, 1980
Circuit for an emergency lighting and fire detector system
ESB INC42 citations92
US4048405ASep 13, 1977
High drain rate, primary alkaline cell having a divalent silver oxide/monovalent silver oxide depolarizer blend coated with a layer of silver
ESB INC44 citations92
US4221852ASep 9, 1980
Radial grids for lead acid batteries
ESB INC68 citations90
US4070528AJan 24, 1978
Battery having porous inherently sealable separator
ESB INC77 citations90
US3932764AJan 13, 1976
Transfer switch and transient eliminator system and method
ESB INC38 citations90
US4091186AMay 23, 1978
Dry cell battery having electrical spring contact adhered to terminal
ESB INC45 citations86
US4009056AFeb 22, 1977
Primary alkaline cell having a stable divalent silver oxide depolarizer mix
ESB INC40 citations86
US3978465AAug 31, 1976
Line isolation monitor
ESB INC40 citations86
US4087697AMay 2, 1978
Rapid power transfer system
ESB INC24 citations82
US3990439ANov 9, 1976
Protective breathing apparatus and valve therefor
ESB INC54 citations82
US4224736ASep 30, 1980
Process for sealing electrochemical cells
ESB INC19 citations79
US4072799AFeb 7, 1978
Vent plug system for batteries
ESB INC25 citations79
US3966497AJun 29, 1976
Seawater battery
ESB INC30 citations77
US4200830AApr 29, 1980
Series resonant battery charger and control therefor
ESB INC29 citations76
US3988163AOct 26, 1976
Sodium-mixture of metal halides, sulfur battery
ESB INC21 citations76
US4191806AMar 4, 1980
Pressure vent for a sealed primary cell
ESB INC26 citations75
US4078127AMar 7, 1978
Additive for an alkaline battery employing divalent silver oxide positive active material
ESB INC22 citations75
US4075398AFeb 21, 1978
Means of providing pressure relief to sealed galvanic cell
ESB INC23 citations75
US3983554ASep 28, 1976
Electric power distribution system including a Master Annunicator and Central Control Unit
ESB INC24 citations75
US3956022AMay 11, 1976
Storage battery with carrying device
ESB INC26 citations75
US4088628AMay 9, 1978
Atactic polypropylene tape
ESB INC17 citations74
US4253927AMar 3, 1981
Material for an alkaline cell separator and a process of making
ESB INC6 citations73
US4252872AFeb 24, 1981
Granulated lead oxides with teflon
ESB INC7 citations73
US4131637ADec 26, 1978
Grafted polymeric material and process for preparing
ESB INC10 citations73
US4122133AOct 24, 1978
Material for an alkaline cell separator and a process of making
ESB INC11 citations73
US4113929ASep 12, 1978
Non-aqueous primary battery having a pure silver chromate cathode
ESB INC16 citations72
US3981748ASep 21, 1976
Non-aqueous, primary battery having a blended cathode active material
ESB INC13 citations72
US3964932AJun 22, 1976
Battery having deformations in a metal layer
ESB INC13 citations72
US4122242AOct 24, 1978
Process for sealing electrochemical cells
ESB INC11 citations71
US3997365ADec 14, 1976
Battery having polyamide hot melt adhesive seal
ESB INC16 citations71
US3969138AJul 13, 1976
Sodium-aluminum halide, sulfur battery
ESB INC17 citations71
US4145648AMar 20, 1979
Polarity indicator for battery charger
ESB INC29 citations70
US4079243AMar 14, 1978
Battery powered lamp assembly
ESB INC15 citations70
US4015056AMar 29, 1977
Method of manufacturing a stable divalent silver oxide depolarizer mix
ESB INC17 citations70
US3943004AMar 9, 1976
Lead chloride electrode for seawater battery
ESB INC12 citations70
US4160070AJul 3, 1979
Additive for high drain rate lithium cells
ESB INC17 citations69
US4091180AMay 23, 1978
Vent system with flame arresting capability
ESB INC18 citations69
US4064323ADec 20, 1977
Battery having venting wrapper comprising gas previous plastic layer and fractured gas impervious layer
ESB INC9 citations69
US4059718ANov 22, 1977
Composite of metal and insulating material with setback which exposes battery terminal
ESB INC11 citations69
US4091179AMay 23, 1978
Vent system with flame arresting capability
ESB INC10 citations68
US3953238AApr 27, 1976
Multicell seawater battery
ESB INC19 citations68
US4311920AJan 19, 1982
Emergency power source
ESB INC7 citations66
US4215189AJul 29, 1980
Electrochemical battery employing a latex bonded lead dioxide electrode
ESB INC10 citations66
US4164016AAug 7, 1979
Current sensing system
ESB INC13 citations66
US3954505AMay 4, 1976
Multicell alkaline primary battery
ESB INC12 citations65
US4074720AFeb 21, 1978
Cardiac pacer with rate runaway protection
ESB INC8 citations63
US4206275AJun 3, 1980
Material for an alkaline cell separator and a process of making
ESB INC4 citations62
US3963806AJun 15, 1976
Reaction product of polyalkylene imine and epoxy, halo, ethylenic substituted difunctional compounds
ESB INC18 citations60
Showing the top 50 of 64 patents by PatentIndex Score.