For the Inventor, By the Inventor

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Rogers, MN, United States of America

Ultra Pac, Inc.

USPTO Granted Patents = 42

CIPO Patents = 1

Trademarks = 1

Forward Citations = 1,829

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10 inventors (with patents filed for the assignee):

Calvin S Krupa (37 out of 46 patents)

Robert Knoss (18 out of 24 patents)

Steven R Anderson (2 out of 2 patents)

4. Jeffrey M Smith (2 out of 2 patents)

5. Cal Krupa (2 out of 2 patents)

6. Timothy Henry Kuitems (1 out of 2 patents)

7. Richard F Smith (1 out of 2 patents)

8. Judie K Smith (1 out of 1 patent)

9. Clavin S Krupa (1 out of 1 patent)

10. Robert A Knoss (0 patent)

42 patents: Sort by Forward Citations

1. D421695 - Vegetable container (2000-03-21),

2. 5887713 - Holder for compact discs (1999-03-30),

3. D395985 - Food container (1998-07-14),

4. D395796 - Food container (1998-07-07),

5. D394807 - Chicken container (1998-06-02),

6. D391850 - Pie container (1998-03-10),

7. 5685427 - Holder for removably supporting a compact disk (1997-11-11),

8. D385784 - Fruit container (1997-11-04),

9. D385780 - Egg carton (1997-11-04),

10. 5653345 - Fruit box (1997-08-05),

11. D380381 - Fruit container (1997-07-01),

12. D379300 - Fruit container (1997-05-20),

13. D378192 - Stackable berry container with hinged lid (1997-02-25),

14. D377450 - Stackable berry container with hinged lid (1997-01-21),

15. 5590805 - Fruit box (1997-01-07),

Ultra Pac, Inc. is a leading packaging solutions provider specializing in customized packaging for a wide range of industries. With a focus on innovation and quality, we offer a diverse selection of packaging products and services to meet our clients' unique needs. Our expert team is dedicated to providing superior customer service and delivering efficient packaging solutions. Contact us today to learn more about how Ultra Pac, Inc. can help with your packaging needs.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

42 Patents

#1 in Rogers, MN

#232 in Minnesota

#7,983 in US

#15,845 in the World

Rogers, MN, United States of America

Ultra Pac, Inc.

Forward Citations = 1,829

10 inventors:

Calvin S Krupa (37 out of 46 patents)

Robert Knoss (18 out of 24 patents)

Steven R Anderson (2 out of 2 patents)

4. Jeffrey M Smith (2 out of 2 patents)

5. Cal Krupa (2 out of 2 patents)

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