Inventor
WILSON WOODROW S
US7 patents
Patents
7 patentsUS4377247AMar 22, 1983
Dispensing closure employing living hinge
POLYTOP CORP100 citations95
US4220248ASep 2, 1980
Closure with hinged lid and cam and spring elements holding lid open or closed
POLYTOP CORP80 citations95
US4759455AJul 26, 1988
Child resistant closure with deformable panel
POLYTOP CORP56 citations94
US5542585AAug 6, 1996
Dispensing closure with pivotably mounted spout and means for limiting travel thereof
POLYTOP CORP188 citations93
US4756451AJul 12, 1988
Child resistant closure with energy planes
POLYTOP CORP28 citations91
US4081108AMar 28, 1978
Tamper evident one-piece dispensing closures
POLYTOP CORP29 citations81
US4209114AJun 24, 1980
Dispensing closure structures
POLYTOP CORP26 citations75