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For the Inventor, By the Inventor

Specialty Acquirer LLC


USPTO Granted Patents = 2

Forward Citations = 48

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2 inventors (with patents filed for the assignee):

goldMedal Nathaniel Polish (2 out of 12 patents)

silverMedal Martin Friedrich Ludwig Silbernagl (2 out of 2 patents)


2 patents:

1. 7568617 - Learning fare collection system for mass transit (2009-08-04),
2. 7566003 - Learning fare collection system for mass transit (2009-07-28),
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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#593 in

#1,687 in

Specialty Acquirer LLC

Forward Citations = 48

2 inventors:

goldMedal Nathaniel Polish (2 out of 12 patents)

silverMedal Martin Friedrich Ludwig Silbernagl (2 out of 2 patents)

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