logo

For the Inventor, By the Inventor

Los Angeles, CA, United States of America

Sigmatron Associates


USPTO Granted Patents = 2

Forward Citations = 53

Loading Chart...
Loading Chart...

2 inventors (with patents filed for the assignee):

goldMedal Walter F Essinger (1 out of 3 patents)

silverMedal Sam H Rustomji (1 out of 1 patent)


2 patents:

1. 4511599 - Mask for vacuum depositing back metal electrodes on EL panel (1985-04-16),
2. 4508990 - Thin-film EL panel mounting unit (1985-04-02),
logo

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

2 Patents

#770 in Los Angeles, CA

#20,981 in California

#94,730 in US

Los Angeles, CA (US)
Los Angeles, CA, United States of America

Sigmatron Associates

Forward Citations = 53

2 inventors:

goldMedal Walter F Essinger (1 out of 3 patents)

silverMedal Sam H Rustomji (1 out of 1 patent)

Please report any incorrect information to [email protected]
Loading…