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For the Inventor, By the Inventor

San Francisco, CA, United States of America

Participant Assistive Products


USPTO Granted Patents = 3

Trademarks = 1

Forward Citations = 6

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6 inventors (with patents filed for the assignee):

goldMedal David Edward Calver (3 out of 3 patents)

silverMedal Ryota Yamada (3 out of 3 patents)

bronzeMedal George James King, Jr (2 out of 2 patents)

4.  Wayne Harvey Hanson (1 out of 14 patents)

5.  George J King (1 out of 1 patent)

6.  Fahad I Aldaajani (1 out of 1 patent)


3 patents:

1. 11839584 - Modular mobility systems (2023-12-12),
2. D961464 - Multifunctional mobility system seat (2022-08-23),
3. D951824 - Multifunctional mobility system base (2022-05-17),
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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#1,026 in San Francisco, CA

#16,417 in California

#72,011 in US

...
San Francisco, CA, United States of America

Participant Assistive Products

Forward Citations = 6

6 inventors:

goldMedal David Edward Calver (3 out of 3 patents)

silverMedal Ryota Yamada (3 out of 3 patents)

bronzeMedal George James King, Jr (2 out of 2 patents)

4.  Wayne Harvey Hanson (1 out of 14 patents)

5.  George J King (1 out of 1 patent)

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