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For the Inventor, By the Inventor

Carlsbad, CA, United States of America

Aqua Drop Corporation


USPTO Granted Patents = 1

Forward Citations = 11

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1 inventor (with patents filed for the assignee):

goldMedal Dwight N Johnson (1 out of 71 patents)


1 patent:

1. 4896629 - Poultry watering valve (1990-01-30),
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USPTO Data Jan 1 1976 - Dec 23 2025

1 Patents

#401 in Carlsbad, CA

#28,429 in California

#133,811 in US

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Carlsbad, CA, United States of America

Aqua Drop Corporation

Forward Citations = 11

1 inventor:

goldMedal Dwight N Johnson (1 out of 71 patents)

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