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CIPO Patents = 1

Forward Citations = 289

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7 inventors (with patents filed for the assignee):

Thomas C Stoneberg (9 out of 30 patents)

Gary L Berge (7 out of 67 patents)

Walter J Kreiseder (4 out of 16 patents)

4. William C Schmeisser (2 out of 5 patents)

5. Allen J Vogel (1 out of 6 patents)

6. John A Sekowski (1 out of 4 patents)

7. Thomas C Stonberg (1 out of 1 patent)

8. Joseph M Ladina (8 patents)

12 patents: Sort by Forward Citations

1. 6547102 - Swivel top closure (2003-04-15),

2. 6478184 - Two piece hinged closure (2002-11-12),

3. 6338425 - Dispensing closure (2002-01-15),

4. D451021 - Overcap for dispensing closure (2001-11-28),

5. 6299038 - Telescoping twist closure (2001-10-09),

6. 6299027 - Valve controlled dispensing closure (2001-10-09),

7. 6269982 - Trigger activated product dispenser (2001-08-07),

8. 6213351 - Push body valve closure (2001-04-10),

9. D438114 - Twist top closure (2001-02-28),

10. D435218 - Product dispenser top (2000-12-19),

11. 6116477 - Two piece hinge closure (2000-09-12),

12. 5215220 - Tamper evident closure with dispensing spout and integral opening member (1993-06-01),

Courtesy Corporation is a leading provider of high-quality customer service solutions for businesses across various industries. With a focus on delivering exceptional service and building strong customer relationships, Courtesy Corporation helps companies improve customer satisfaction and loyalty. Their team of experienced professionals works closely with clients to develop customized solutions that meet their specific needs and goals. Whether it's customer support, technical assistance, or sales support, Courtesy Corporation is committed to delivering excellence in every interaction.

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USPTO Data Jan 1 1976 - Sep 15 2026

12 Patents

#15 in Buffalo Grove, IL

#1,252 in Illinois

#25,496 in US

#48,036 in the World

Buffalo Grove, IL, United States of America

Courtesy Corporation