CK

Calvin S. Krupa

UP Ultra Pac: 8 patents #1 of 5Top 20%
📍 Greenfield, MN: #1 of 1 inventorsTop 100%
🗺 Minnesota: #5 of 3,156 inventorsTop 1%
Overall (1997): #1,300 of 185,788Top 1%
8
Patents 1997

Issued Patents 1997

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
D385784 Fruit container Robert Knoss 1997-11-04
D385780 Egg carton Robert Knoss 1997-11-04
5653345 Fruit box Robert Knoss 1997-08-05
D380381 Fruit container Robert Knoss 1997-07-01
D379300 Fruit container Robert Knoss 1997-05-20
D378192 Stackable berry container with hinged lid Robert Knoss 1997-02-25
D377450 Stackable berry container with hinged lid Robert Knoss 1997-01-21
5590805 Fruit box Robert Knoss 1997-01-07