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For the Inventor, By the Inventor

El Segundo, CA, United States of America

Tetrafluor, Inc.


USPTO Granted Patents = 3

Forward Citations = 39

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6 inventors (with patents filed for the assignee):

goldMedal Robert Janian (2 out of 10 patents)

silverMedal Richard J Vernon (1 out of 1 patent)

bronzeMedal Stanley E Charles (1 out of 5 patents)

4.  David A Rossi (1 out of 1 patent)

5.  John Lee (1 out of 1 patent)

6.  William P Reid (1 out of 3 patents)


3 patents:

1. 4939830 - Method of making elastomeric embedded spring seal (1990-07-10),
2. 4917390 - Hydraulic seal assembly (1990-04-17),
3. 4101140 - Peripherally grooved seal (1978-07-18),
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USPTO Data Jan 1 1976 - Jan 6 2026

3 Patents

#62 in El Segundo, CA

#16,430 in California

#72,066 in US

...
El Segundo, CA, United States of America

Tetrafluor, Inc.

Forward Citations = 39

6 inventors:

goldMedal Robert Janian (2 out of 10 patents)

silverMedal Richard J Vernon (1 out of 1 patent)

bronzeMedal Stanley E Charles (1 out of 5 patents)

4.  David A Rossi (1 out of 1 patent)

5.  John Lee (1 out of 1 patent)

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