Assignee
SHEN RICHARD
TW6 patents
Top patents by PatentIndex Score
US4838053AJun 13, 1989
Heavy-duty panic proof lock unit
SHEN RICHARD79 citations95
US4840412AJun 20, 1989
Easily adjustable latch
SHEN RICHARD26 citations91
US4750766AJun 14, 1988
Amphi-latch for a tubular lockset
SHEN RICHARD27 citations91
US4840413AJun 20, 1989
Length-adjustable latch
SHEN RICHARD14 citations72
US4756178AJul 12, 1988
Low friction super heavy-duty lever handle lockset
SHEN RICHARD9 citations72
US4744232AMay 17, 1988
Latchbolt slide extension
SHEN RICHARD12 citations72