For the Inventor, By the Inventor

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Redondo Beach, CA, United States of America

Z-Lock Company, Inc.

USPTO Granted Patents = 1

Forward Citations = 51

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1 inventor (with patents filed for the assignee):

Jay S Derman (1 out of 60 patents)

1 patent: Sort by Forward Citations

1. 4640106 - Device for preventing unauthorized use of a cassette tape deck (1987-02-03),

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USPTO Data Jan 1 1976 - Jan 6 2026

1 Patents

#36 in Redondo Beach, CA

#28,455 in California

#133,943 in US

Redondo Beach, CA, United States of America

Z-Lock Company, Inc.

Forward Citations = 51

1 inventor:

Jay S Derman (1 out of 60 patents)

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