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For the Inventor, By the Inventor

Cincinnati, OH, United States of America

David A Hay

This inventor holds 22 USPTO granted patents and 1 published patent application, plus 3 CIPO patents, primarily in Piperidine Derivatives. Top assignees: Merrell Pharmaceuticals, Inc., Merrell Dow Pharmaceuticals. Active years: 1989-2004.

IDiyas Innovation Intelligence. (2026). Inventor Profile: David A Hay. Retrieved from https://idiyas.com/inventor/david-a-hay

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

USPTO Granted Patents = 22 

% Patents Active = 86.4


Average Co-Inventor Count = 4.8

ph-index = 8

Forward Citations = 134(Granted Patents)


Location History:

  • Central Lake, MI (US) (1998)
  • Cincinnati, OH (US) (1989 - 2004)

Company Filing History:

goldMedal19 out of 194 
 
Merrell Pharmaceuticals, Inc.
 patents
silverMedal2 out of 455 
 
Merrell Dow Pharmaceuticals
 patents
where one patent can have more than one assignee

Years Active: 1989-2004

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Areas of Expertise:
Antihistaminic
Piperidine
Intermediates
Antiarrhythmic
Aryl
Sulfonamide
Drum Support
Imidazole
22 patents (USPTO):Explore Patents
1. 6777555 - Intermediates useful for the preparation of antihistaminic piperidine derivatives (2004-08-17),
2. 6566526 - Intermediates useful for the preparation of antihistaminic piperidine derivatives (2003-05-20),
3. 6559312 - Intermediates useful for the preparation of antihistaminic piperidine derivatives (2003-05-06),
4. 6555689 - Intermediates useful for the preparation of antihistaminic piperidine derivatives (2003-04-29),
5. 6552200 - Intermediates useful for the preparation of antihistaminic piperidine derivatives (2003-04-22),
6. 6548675 - Intermediates useful for the preparation of antihistaminic piperidine derivatives (2003-04-15),
7. 6479663 - Intermediates useful for the preparation of antihistaminic piperidine derivatives (2002-11-12),
8. 6441179 - Intermediates useful for the preparation of antihistaminic piperidine derivatives (2002-08-27),
9. 6348597 - Intermediates useful for the preparation of antihistaminic piperidine derivatives (2002-02-19),
10. 6340761 - Intermediates useful for the preparation of antihistaminic piperidine derivatives (2002-01-22),
11. 6242606 - Intermediates useful for the preparation of antihistaminic piperidine derivatives (2001-06-05),
12. 6147216 - Intermediates useful for the preparation of antihistaminic piperidine (2000-11-14),
13. 6004980 - (+)-.alpha.-(2,3-dimethoxyphenyl)-1-[2- (1999-12-21),
14. 5874445 - (+) -.alpha.- (2,3-dimethoxyphenyl)-1-(2-(4-fluorephenyl) (1999-02-23),
15. D396008 - Drum support (1998-07-14),

Title: The Innovative Mind of David A Hay

Introduction: David A Hay, a talented inventor based in Cincinnati, Ohio, is known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: David A Hay's latest patents include a revolutionary software application for enhancing cybersecurity measures in financial institutions and a cutting-edge wearable device that monitors vital signs in real-time.

Career Highlights: With over two decades of experience in the tech industry, David A Hay has a proven track record of developing innovative solutions. He has worked for leading tech companies, where he spearheaded projects that have received international recognition.

Collaborations: Throughout his career, David A Hay has collaborated with top researchers, engineers, and designers to bring his ideas to life. His ability to work in multidisciplinary teams has led to the successful development of several groundbreaking products.

Conclusion: David A Hay's passion for innovation and his dedication to pushing the boundaries of technology make him a true pioneer in the field of inventions. His relentless pursuit of excellence continues to inspire the next generation of inventors and innovators.

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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