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For the Inventor, By the Inventor

Charlotte, NC, United States of America

Drinkard Developments


USPTO Granted Patents = 2

Forward Citations = 11

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2 inventors (with patents filed for the assignee):

goldMedal William F Drinkard (2 out of 18 patents)

silverMedal Hans J Woerner (1 out of 8 patents)


2 patents:

1. 5026530 - Method for producing copper arsenate compositions (1991-06-25),
2. 4927672 - Process for rapidly fixing wood preservatives to prevent and reduce (1990-05-22),
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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#306 in Charlotte, NC

#1,996 in North Carolina

#92,551 in US

...
Charlotte, NC, United States of America

Drinkard Developments

Forward Citations = 11

2 inventors:

goldMedal William F Drinkard (2 out of 18 patents)

silverMedal Hans J Woerner (1 out of 8 patents)

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