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Patrick Prombo
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Homewood, IL, US
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last 30 patents
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Patent Grant
Chewing gum having an extended sweetness
Patent number
4,986,991
Issue date
Jan 22, 1991
Wm Wrigley, Jr., Company
Robert Yatka
A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES