Inventor
DRANCHAK DAVID W
US17 patents
⚠️ This page may combine multiple inventors who share the name “DRANCHAK DAVID W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
JRS TECHNOLOGY INC
6 patentsUS6181086B1Jan 30, 2001
Electronic ballast with embedded network micro-controller
JRS TECHNOLOGY INC166 citations98
US5838116ANov 17, 1998
Fluorescent light ballast with information transmission circuitry
JRS TECHNOLOGY INC222 citations98
US6218787B1Apr 17, 2001
Remote dimming control system for a fluorescent ballast utilizing existing building wiring
JRS TECHNOLOGY INC140 citations97
US5930130AJul 27, 1999
Inrush protection circuit
JRS TECHNOLOGY INC84 citations95
US6107755AAug 22, 2000
Modular, configurable dimming ballast for a gas-discharge lamp
JRS TECHNOLOGY INC65 citations94
US5908235AJun 1, 1999
Ballast fixture for fluorescent lighting
JRS TECHNOLOGY INC27 citations91
IBM
6 patentsUS5061192AOct 29, 1991
High density connector
IBM230 citations98
US5163834ANov 17, 1992
High density connector
IBM104 citations95
US5248262ASep 28, 1993
High density connector
IBM82 citations94
US5237743AAug 24, 1993
Method of forming a conductive end portion on a flexible circuit member
IBM69 citations94
US4892487AJan 9, 1990
Connector assembly with movable carriage
IBM47 citations92
US4907975AMar 13, 1990
Electrical connector utilizing flexible electrical circuitry
IBM31 citations90