Inventor

DOLJACK FRANK A

US30 patents

⚠️ This page may combine multiple inventors who share the name “DOLJACK FRANK A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DOLJACK FRANK A

RAYCHEM CORP

Electrical device comprising a PTC conductive polymer

PTC conductive polymer compositions

Protection of certain electrical systems by use of PTC device

PTC conductive polymer compositions

Method of making a PTC conductive polymer electrical device

Method of making a PTC conductive polymer electrical device

Method of making a PTC conductive polymer electrical device

PTC Circuit protection device

PTC Circuit protection device

PTC Circuit protection device

Method of making a PTC conductive polymer electrical device

PTC Circuit protection device

ASSURE SYSTEMS INC

Verification of authenticity of goods by use of random numbers

Verification of authenticity of goods by use of random numbers

Bar code reader

Secure system for printing authenticating digital signatures

METCAL INC

Autoregulating multi contact induction heater

Thermal seed for treatment of tumors

Rapid heating, uniform, highly efficient griddle

GAS RES INST

Low emission induction heating coil

High-frequency induction heating power supply

Induction heater system for fusing plastics

GOODRICH CO B F

Method and apparatus for updating event information

Monitor system and method for detecting sequential events in a cyclical process

Signal detector circuit with gain control method

ELECTRIC POWER RES INST

Low emission induction heating coil

Rapid heating, uniform, highly efficient griddle

(unassigned)

Self-regulating electrical heater system and method

DOLJACK FRANK A

System and method for measuring electrical characteristics of a capacitor

NORTHROP CORP

Carbon film coated refractory fiber cloth