Inventor
WU RONG-FAA
TW20 patents
⚠️ This page may combine multiple inventors who share the name “WU RONG-FAA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TONG LUNG METAL IND CO LTD
15 patentsUS7874191B2Jan 25, 2011
Cylinder lock
TONG LUNG METAL IND CO LTD21 citations92
US7137657B2Nov 21, 2006
Reinforced apparatus for a lever handle of a door lock
TONG LUNG METAL IND CO LTD30 citations92
US6615630B2Sep 9, 2003
Door lock
TONG LUNG METAL IND CO LTD37 citations92
US5927777AJul 27, 1999
Lock set with improved spindle construction
TONG LUNG METAL IND CO LTD26 citations92
US5474346ADec 12, 1995
Face plate adapted to be inserted into a bore of a door
TONG LUNG METAL IND CO LTD22 citations92
US5385374AJan 31, 1995
Reinforced cylindrical door lock set
TONG LUNG METAL IND CO LTD24 citations92
US5301526AApr 12, 1994
Lock set with improved spindle mechanism
TONG LUNG METAL IND CO LTD48 citations92
US5222383AJun 29, 1993
Cylinder lock
TONG LUNG METAL IND CO LTD41 citations92
US4768817ASep 6, 1988
Dead bolt assembly
TONG LUNG METAL IND CO LTD32 citations92
US4711477ADec 8, 1987
Duplex latch bolt mechanism
TONG LUNG METAL IND CO LTD48 citations92
US5666833ASep 16, 1997
Reinforcing apparatus for a lever handle of a door lock
TONG LUNG METAL IND CO LTD53 citations90
US4639025AJan 27, 1987
Adjustable dead bolt assembly
TONG LUNG METAL IND CO LTD40 citations87
US7975518B2Jul 12, 2011
Re-keyable lock with improvements for preventing incomplete re-keying
TONG LUNG METAL IND CO LTD11 citations83
US5788296AAug 4, 1998
Lock set with improved spindle construction
TONG LUNG METAL IND CO LTD11 citations73
US4760722AAug 2, 1988
Cylinder lock
TONG LUNG METAL IND CO LTD18 citations73