Inventor

RALPHS ROBERT E

5 patents

⚠️ This page may combine multiple inventors who share the name “RALPHS ROBERT E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PACKAGING CORP AMERICA

2 patents

USD279259SJun 18, 1985

Carrier for beverage cups

PACKAGING CORP AMERICA41 citations91

US4582248AApr 15, 1986

Upwardly molded locking flange on carton

PACKAGING CORP AMERICA13 citations70

GEN FOODS CORP

2 patents

USD270703SSep 27, 1983

Convective heating tray

GEN FOODS CORP31 citations89

USD270422SSep 6, 1983

Convective heating tray

GEN FOODS CORP2 citations61

DIAMOND INT CORP

1 patent

US4208006AJun 17, 1980

Molded pulp tray for beverage and food

DIAMOND INT CORP86 citations95