Indianapolis, IN, United States of America

D-a Lubricant Company, Inc.


USPTO Granted Patents = 3

Trademarks = 13

Forward Citations = 90

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2 inventors (with patents filed for the assignee):

goldMedal John H Beard (3 out of 25 patents)

silverMedal Allan Roush (3 out of 5 patents)


3 patents:

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USPTO Data Jan 1 1976 - Dec 2 2025

3 Patents

#231 in Indianapolis, IN

#1,035 in Indiana

#71,923 in US

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Indianapolis, IN, United States of America
Forward Citations = 90

2 inventors:

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