Zachary, LA, United States of America

D W Calvin

This inventor holds 1 USPTO granted patent. Top assignee: The Dow Chemical Company. Active years: 1979.

IDiyas Innovation Intelligence. (2026). Inventor Profile: D W Calvin. Retrieved from https://idiyas.com/inventor/d-w-calvin

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 1

Forward Citations = 3(Granted Patents)


Company Filing History:


Years Active: 1979

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1 patent (USPTO):Explore Patents

Title: D W Calvin and Fluoride Dentifrice Innovation.

Introduction

D W Calvin is an inventor associated with Zachary, Louisiana, and The Dow Chemical Company. His recorded patent concerns a dentifrice formulation designed to provide fluoride for the therapeutic treatment of teeth.

Latest Patents

Calvin’s listed patent is “Dentifrice Compositions Containing Fumed Silica with Sorbed Fluoride.” It describes a dentifrice in a liquid vehicle containing fumed silica with fluoride sorbed onto it, providing free fluoride ions in the composition. The patent record lists 1 patent for Calvin.

Career Highlights

The available information connects Calvin’s invention to The Dow Chemical Company. The patent reflects work on incorporating fluoride into a dentifrice composition using fumed silica as a carrier.

Collaborations

Marylu B. Gibbs is identified as Calvin’s coworker. The provided information does not specify her role in the patent or the invention.

Conclusion

D W Calvin’s recorded patent documents a fluoride-containing dentifrice approach intended for therapeutic dental use, developed in connection with The Dow Chemical Company.

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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