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For the Inventor, By the Inventor

Northvale, NJ, United States of America

Emdee Corporation


USPTO Granted Patents = 3

Forward Citations = 20

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2 inventors (with patents filed for the assignee):

goldMedal Samuel Ruben (3 out of 14 patents)

silverMedal Philip E Kalker (3 out of 3 patents)


3 patents:

1. 4358956 - Liquid level indicator (1982-11-16),
2. 4227410 - Attitude compensating indicator (1980-10-14),
3. 4207766 - Attitude compensating liquid content indicator (1980-06-17),
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USPTO Data Jan 1 1976 - Sep 29 2026

3 Patents

#14 in Northvale, NJ

#2,658 in New Jersey

#73,766 in US

Northvale, NJ (US)
Northvale, NJ, United States of America

Emdee Corporation

Forward Citations = 20

2 inventors:

goldMedal Samuel Ruben (3 out of 14 patents)

silverMedal Philip E Kalker (3 out of 3 patents)

Please report any incorrect information to [email protected]
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