Angleton, TX, United States of America

Harold G Liddell

This inventor holds 2 USPTO granted patents. Top assignee: The Dow Chemical Company. Active years: 1976.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Harold G Liddell. Retrieved from https://idiyas.com/inventor/harold-g-liddell

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


% Patents Active = 100.0

Average Co-Inventor Count = 1.3

ph-index = 2

Forward Citations = 20(Granted Patents)


Company Filing History:


Years Active: 1976

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2 patents (USPTO):Explore Patents

Title: Harold G. Liddell: Innovator in Wood Treatment Technologies

Introduction

Harold G. Liddell is a notable inventor based in Angleton, Texas, recognized for his contributions to wood treatment technologies. With a total of 2 patents, Liddell has developed innovative methods that enhance the preservation and treatment of wood products. His work has significant implications for the wood industry, particularly in improving the efficiency and effectiveness of wood preservation processes.

Latest Patents

Liddell's latest patents include a process for impregnating wood and a composition for maintaining a constant concentration of wood treatment solutions. The first patent describes an improved method of impregnating wood with a preservative using halogenated solvents as carriers. This method allows for the removal of the carrier from the treated wood through steam treatment, resulting in fewer steps and a natural appearance suitable for painting. The second patent focuses on a wood treating process where excess solvent is vaporized and condensed for reuse. This process ensures that the depleted solution is restored to its original composition by adding a concentrate of the preservative and antiblooming additive.

Career Highlights

Liddell is associated with The Dow Chemical Company, where he has applied his expertise in wood treatment technologies. His innovative approaches have contributed to advancements in the field, making significant strides in the efficiency of wood preservation methods.

Collaborations

One of Liddell's notable collaborators is James L. Dunn, Jr. Their partnership has likely fostered the development of new ideas and improvements in wood treatment processes.

Conclusion

Harold G. Liddell's work in wood treatment technologies exemplifies innovation in the preservation of wood products. His patents reflect a commitment to enhancing the efficiency and effectiveness of wood treatment processes. Liddell's contributions continue to influence the industry positively.

Profile summary based on public USPTO records.
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]
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