For the Inventor, By the Inventor

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Edison, NJ, United States of America

Collectible Display Systems, Inc.

USPTO Granted Patents = 3

Forward Citations = 28

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4 inventors (with patents filed for the assignee):

Michael Pfeifer (3 out of 3 patents)

Morton Simpson, Ii (3 out of 3 patents)

Stuart Karten (2 out of 10 patents)

4. Eric Olson (2 out of 2 patents)

3 patents: Sort by Forward Citations

1. 5979677 - Stackable collectible display stand with interchangeable scenic cards (1999-11-09),

2. D406962 - Stackable semi-circular collectible display stand (1999-03-23),

3. D406961 - Stackable rectangular collectible display stand (1999-03-23),

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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#43 in Edison, NJ

#2,617 in New Jersey

#71,949 in US

Edison, NJ, United States of America

Collectible Display Systems, Inc.

Forward Citations = 28

4 inventors:

Michael Pfeifer (3 out of 3 patents)

Morton Simpson, Ii (3 out of 3 patents)

Stuart Karten (2 out of 10 patents)

4. Eric Olson (2 out of 2 patents)

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