For the Inventor, By the Inventor

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New Hope, PA, United States of America

Changebox IP Holdings, LLC

USPTO Granted Patents = 3

Forward Citations = 27

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4 inventors (with patents filed for the assignee):

Christopher Mark Marschall (3 out of 3 patents)

Paul Dowd (1 out of 64 patents)

Robert Marvin (1 out of 16 patents)

4. Christopher Miller (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 11591134 - Method and apparatus for interconnectable building block container toys capable of storing items (2023-02-28),

2. 10618691 - Method and apparatus for interconnectable building block container toys capable of storing items (2020-04-14),

3. D722658 - Interconnectable building block container capable of storing items (2015-02-17),

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

3 Patents

#9 in New Hope, PA

#2,626 in Pennsylvania

#72,066 in US

New Hope, PA, United States of America

Changebox IP Holdings, LLC

Forward Citations = 27

4 inventors:

Christopher Mark Marschall (3 out of 3 patents)

Paul Dowd (1 out of 64 patents)

Robert Marvin (1 out of 16 patents)

4. Christopher Miller (1 out of 1 patent)

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