Assignee
WALDORF CORP
US42 patents
Top patents by PatentIndex Score
US5123589AJun 23, 1992
Reusable rigid film pack
WALDORF CORP151 citations96
US4621736ANov 11, 1986
Recloseable carton
WALDORF CORP59 citations96
US4584202AApr 22, 1986
Microwave popcorn package
WALDORF CORP108 citations96
US4586649AMay 6, 1986
Food package
WALDORF CORP82 citations95
US5472136ADec 5, 1995
Carton with handle and deflection regions
WALDORF CORP25 citations93
US5445316AAug 29, 1995
Sift proof and tamper evident pouring spout
WALDORF CORP24 citations93
US5439101AAug 8, 1995
Convertible envelope
WALDORF CORP61 citations93
US5337951AAug 16, 1994
Sturdy sandwich carton
WALDORF CORP34 citations93
US5322215AJun 21, 1994
Flip-top carton with reclosable lip
WALDORF CORP30 citations93
US5215250AJun 1, 1993
Carton with improved pouring spout
WALDORF CORP23 citations93
US5141108AAug 25, 1992
Core retaining carton
WALDORF CORP28 citations93
US5014855AMay 14, 1991
Flip top sealed carton with tear filament
WALDORF CORP27 citations93
US4688677AAug 25, 1987
Flip top dispenser box with non-linear perforations
WALDORF CORP31 citations93
US5135158AAug 4, 1992
Three-cell, reclosable product dispenser
WALDORF CORP22 citations92
US5056708AOct 15, 1991
Two-cell slide top dispenser with tamper evident top
WALDORF CORP48 citations92
US5005701AApr 9, 1991
Strengthening strut for rectangular container
WALDORF CORP31 citations92
US4951868AAug 28, 1990
Pre-glued tapered tray with gussets and flanges
WALDORF CORP45 citations92
US4871111AOct 3, 1989
Tapered tray with pre-glued elevating legs
WALDORF CORP55 citations92
US4820893AApr 11, 1989
Two-celled expandable microwave cooking sling
WALDORF CORP24 citations92
US4784708ANov 15, 1988
Bonding method of employing gluability enhancement composition
WALDORF CORP26 citations92
US4609142ASep 2, 1986
Reclosable dispenser carton and blank therefor
WALDORF CORP49 citations92
US5503328AApr 2, 1996
Multi-use envelope
WALDORF CORP106 citations91
US5213255AMay 25, 1993
Opening structure for wedge-shaped pie carton
WALDORF CORP42 citations91
US5095186AMar 10, 1992
Method for making selectively metallized microwave heating packages
WALDORF CORP73 citations91
US5562309AOct 8, 1996
Print folder with pre-applied double stick tape
WALDORF CORP42 citations90
US5407230AApr 18, 1995
Print folder
WALDORF CORP29 citations90
US4773542ASep 27, 1988
Flip top sealed carton
WALDORF CORP46 citations90
US5060850AOct 29, 1991
Bag-like folding carton
WALDORF CORP37 citations88
US4607786AAug 26, 1986
Double insert lock carton and blank therefor
WALDORF CORP38 citations88
US5057282AOct 15, 1991
Pipette unitizer and shipper
WALDORF CORP113 citations86
US4876427AOct 24, 1989
Locking, double-layered microwave package
WALDORF CORP20 citations81
US5333781AAug 2, 1994
Recloseable carton with pouring spout
WALDORF CORP15 citations74
US5307987AMay 3, 1994
Hooded carton
WALDORF CORP13 citations74
USD287464SDec 30, 1986
Compartmented box
WALDORF CORP16 citations73
USD284943SAug 5, 1986
Microwave cooking carton
WALDORF CORP16 citations73
US4631046ADec 23, 1986
Bake in tray and method of forming a blank for the same
WALDORF CORP21 citations69
US4643878AFeb 17, 1987
Extraction cell
WALDORF CORP9 citations65
US5263633ANov 23, 1993
Display carton and blank therefor
WALDORF CORP13 citations63
US5184770AFeb 9, 1993
Slide top dispensing carton and blank therefor
WALDORF CORP6 citations61
US4712688ADec 15, 1987
Double breakapart carton with sealable ends and blank for forming the same
WALDORF CORP6 citations61
US5205480AApr 27, 1993
Recloseable carton with pouring spout
WALDORF CORP8 citations59
US5287586AFeb 22, 1994
Material collecting/removal apparatus
WALDORF CORP9 citations58