For the Inventor, By the Inventor

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Dallas, TX, United States of America

Controls International, Inc.

USPTO Granted Patents = 2

EPO Patents = 1

Trademarks = 3

Forward Citations = 6

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2 inventors (with patents filed for the assignee):

Frederick Rand Underwood (2 out of 4 patents)

Kenneth E Price (2 out of 14 patents)

Frederick Rand Ii Underwood (0 patent)

4. Frederick Rand Iii Underwood (0 patent)

5. Kenneth Earl Price (0 patent)

2 patents: Sort by Forward Citations

1. 10228073 - Adjustable fail-safe rotary spring operator with a retaining band (2019-03-12),

2. 9151351 - Adjustable fail-safe rotary spring operator with a retaining band (2015-10-06),

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USPTO Data Jan 1 1976 - Dec 23 2025

2 Patents

#743 in Dallas, TX

#6,128 in Texas

#92,558 in US

Dallas, TX, United States of America

Controls International, Inc.

Forward Citations = 6

2 inventors:

Frederick Rand Underwood (2 out of 4 patents)

Kenneth E Price (2 out of 14 patents)

Frederick Rand Ii Underwood (0 patent)

4. Frederick Rand Iii Underwood (0 patent)

5. Kenneth Earl Price (0 patent)

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