Bethesda, MD, United States of America

Spiral Systems Instruments, Inc.


USPTO Granted Patents = 1

Forward Citations = 19

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2 inventors (with patents filed for the assignee):

goldMedal Samuel Schalkowsky (1 out of 9 patents)

silverMedal Ellen R Schalkowsky (1 out of 1 patent)


1 patent:

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USPTO Data Jan 1 1976 - Sep 22 2026

1 Patents

#156 in Bethesda, MD

#2,058 in Maryland

#136,583 in US

Bethesda, MD (US)
Bethesda, MD, United States of America
Forward Citations = 19

2 inventors:

Please report any incorrect information to [email protected]
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