Forward Citations = 11

Loading Chart...

2 inventors (with patents filed for the assignee):

William F Drinkard (2 out of 18 patents)

Hans J Woerner (1 out of 8 patents)

2 patents: Sort by Forward Citations

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),

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

2 Patents

#317 in Charlotte, NC

#2,039 in North Carolina

#94,841 in US

Charlotte, NC, United States of America

Drinkard Developments

Forward Citations = 11

2 inventors:

William F Drinkard (2 out of 18 patents)

Hans J Woerner (1 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Drinkard Developments. Retrieved from https://idiyas.com/company/drinkard-developments

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]