Inventor
RIGBY WILLIAM R
US19 patents
⚠️ This page may combine multiple inventors who share the name “RIGBY WILLIAM R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WESTVACO CORP
14 patentsUS5655661AAug 12, 1997
Wrapper for flanged tray with opening feature
WESTVACO CORP60 citations96
US5484100AJan 16, 1996
Tapered, hexagonal paperboard carton
WESTVACO CORP75 citations96
US4930639AJun 5, 1990
Ovenable food container with removable lid
WESTVACO CORP86 citations96
US5122399AJun 16, 1992
Paperboard bottle
WESTVACO CORP62 citations94
US5358176AOct 25, 1994
Tear strip opening for a paperboard container
WESTVACO CORP48 citations92
US5356070AOct 18, 1994
Partitioned paperboard food tray
WESTVACO CORP40 citations92
US4955530ASep 11, 1990
Easy opening lid for ovenable carton
WESTVACO CORP55 citations92
US4836438AJun 6, 1989
Ovenable carton with handles
WESTVACO CORP44 citations92
US4832199AMay 23, 1989
Auto lock display tray
WESTVACO CORP37 citations92
USD363192SOct 17, 1995
Divided food tray
WESTVACO CORP58 citations91
US5788069AAug 4, 1998
CD holder with spring
WESTVACO CORP27 citations86
USD312781SDec 11, 1990
Container
WESTVACO CORP12 citations74
USD311337SOct 16, 1990
Twin tray blank
WESTVACO CORP11 citations74
US5927595AJul 27, 1999
Multi-use envelope
WESTVACO CORP11 citations71