Assignee

BC RESEARCH AND DEV INC

US·2 granted patents·38 citations·filing 1989–1990

Technology mixE05D1 E05Y1 E06B1 G01S1

Top patents by PatentIndex Score

2 records

0160US4976065AControl apparatus for doorsBC RESEARCH AND DEV INC·Filed 1989·Granted Dec 11, 1990·24 cites·20 claims
0238US5021644APresence detecting apparatus and method for automatic doorsBC RESEARCH AND DEV INC·Filed 1990·Granted Jun 4, 1991·14 cites·30 claims

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