For the Inventor, By the Inventor

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Van Nuys, CA, United States of America

Industrial Electronic Engineers, Inc.

USPTO Granted Patents = 3

Trademarks = 1

Forward Citations = 31

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6 inventors (with patents filed for the assignee):

Erick P Schumacher (2 out of 2 patents)

Larry D Hatch (1 out of 1 patent)

Kevin D Quitt (1 out of 1 patent)

4. Koashin Wu (1 out of 1 patent)

5. Robert J Freiberg (1 out of 14 patents)

6. Richard M Altman (1 out of 9 patents)

3 patents: Sort by Forward Citations

1. 6213394 - Visual system for, and method of, displaying graphics and alphanumeric information (2001-04-10),

2. 4448504 - Rear end projection system employing aspherical lenses (1984-05-15),

3. 4124284 - Multiple image projection device (1978-11-07),

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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#49 in Van Nuys, CA

#16,407 in California

#71,953 in US

Van Nuys, CA, United States of America

Industrial Electronic Engineers, Inc.

Forward Citations = 31

6 inventors:

Erick P Schumacher (2 out of 2 patents)

Larry D Hatch (1 out of 1 patent)

Kevin D Quitt (1 out of 1 patent)

4. Koashin Wu (1 out of 1 patent)

5. Robert J Freiberg (1 out of 14 patents)

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