Indianapolis, IN, United States of America

William A Day

This inventor holds 7 USPTO granted patents, plus 1 CIPO patent. Top assignee: Eli Lilly and Company. Active years: 1978-1980.

IDiyas Innovation Intelligence. (2026). Inventor Profile: William A Day. Retrieved from https://idiyas.com/inventor/william-a-day

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 = 5

Forward Citations = 116(Granted Patents)


Company Filing History:


Years Active: 1978-1980

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7 patents (USPTO):Explore Patents

Title: The Innovative Contributions of William A. Day

Introduction

William A. Day is a notable inventor based in Indianapolis, IN, who has made significant contributions to the field of pharmaceuticals. With a total of 7 patents to his name, he has focused on developing innovative compounds that have potential therapeutic applications.

Latest Patents

Among his latest patents, Day has worked on the stereoselective preparation of hexahydro dibenzopyranones. This involves the reaction of an optically active 4-(4-substituted-2,6-dihydroxyphenyl)-6,6-dimethyl-2-norpinanone with a protonic acid to yield an optical isomer of a cis-1-hydroxy-3-substituted-6,6-dimethyl-6,6a,7,8,10,10a-hexahydro-9H-dibenzo[b,d]pyran-9-one. Additionally, the reaction of this norpinanone with a Lewis acid provides an optical isomer of trans-1-hydroxy-3-substituted-6,6-dimethyl-6,6a,7,8,10,10a-hexahydro-9H-dibenzo[b,d]pyran-9-one. His work also includes the development of 9-amino-dibenzopyrans, which are useful as analgesics, anti-depressants, anti-anxiety agents, and hypotensive agents.

Career Highlights

William A. Day is currently associated with Eli Lilly and Company, a leading pharmaceutical firm. His innovative work has contributed to advancements in drug formulations and therapeutic methods, particularly in treating hypertension.

Collaborations

Throughout his career, Day has collaborated with esteemed colleagues such as Robert A. Archer and Edward R. Lavagnino. These collaborations have further enhanced the impact of his research and innovations in the pharmaceutical industry.

Conclusion

William A. Day's contributions to the field of pharmaceuticals through his patents and collaborations highlight his role as a significant inventor. His work continues to influence the development of important therapeutic agents.

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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