Bellevue, WA, United States of America

Appa Systems, Inc.


USPTO Granted Patents = 2

Forward Citations = 10

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2 inventors (with patents filed for the assignee):

goldMedal Ekhard Preikschat (2 out of 10 patents)

silverMedal Robert J Hilker (2 out of 2 patents)


2 patents:

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USPTO Data Jan 1 1976 - Jan 13 2026

2 Patents

#224 in Bellevue, WA

#2,272 in Washington

#92,748 in US

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Bellevue, WA, United States of America
Forward Citations = 10

2 inventors:

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