logo

For the Inventor, By the Inventor

Torrance, CA, United States of America

Poly-Disc Systems, Inc.


USPTO Granted Patents = 2

Forward Citations = 51

Loading Chart...
Loading Chart...

4 inventors (with patents filed for the assignee):

goldMedal David H Johnston (2 out of 4 patents)

silverMedal Pravin K Patel (2 out of 3 patents)

bronzeMedal John Makaeff (1 out of 1 patent)

4.  John Makaeff, Deceased (1 out of 1 patent)


2 patents:

1. 4224381 - Abrasion resistant magnetic record members (1980-09-23),
2. 4124736 - Surface protected magnetic recording members (1978-11-07),
logo

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

2 Patents

#193 in Torrance, CA

#20,566 in California

#92,696 in US

...
Torrance, CA, United States of America

Poly-Disc Systems, Inc.

Forward Citations = 51

4 inventors:

goldMedal David H Johnston (2 out of 4 patents)

silverMedal Pravin K Patel (2 out of 3 patents)

bronzeMedal John Makaeff (1 out of 1 patent)

4.  John Makaeff, Deceased (1 out of 1 patent)

Please report any incorrect information to support@idiyas.com
Loading…