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For the Inventor, By the Inventor

Montreal, Canada

Christopher A Demerson

This inventor holds 51 USPTO granted patents, primarily in Indole Derivatives (CPC class 4242). Top assignees: American Home Products Corporation, Ayerst, Mckenna & Harrison, Inc.. Active years: 1976-1995.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Christopher A Demerson. Retrieved from https://idiyas.com/inventor/christopher-a-demerson

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

USPTO Granted Patents = 51

% Patents Active = 100.0

Average Co-Inventor Count = 3.1

ph-index = 11

Forward Citations = 484(Granted Patents)

Forward Citations (Not Self Cited) = 413(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • St. Laurent, CA (1976 - 1982)
  • Montreal, CA (1976 - 1985)
  • Plainsboro, NJ (US) (1985 - 1990)
  • Kirkland, CA (1993 - 1995)

Company Filing History:

goldMedal39 out of 1,567 
 
American Home Products Corporation
 patents
silverMedal12 out of 117 
 
Ayerst, Mckenna & Harrison, Inc.
 patents

Years Active: 1976-1995

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Areas of Expertise:
Indole Derivatives
Antihypertensive Compounds
Pyranoindole
Isoindole
Carbazole
Spiroindolones
Furoquinolines
Polycyclic Heterocycles
Antidepressants
Compositions
Pharmaceuticals
Acetic Acid
51 patents (USPTO):Explore Patents
1. 5420289 - Substituted indole-, indene-, pyranoindole- and (1995-05-30),
2. 5229516 - Substituted indole-, indene-, pyranoindole- and (1993-07-20),
3. 4971960 - Substituted 1,3,4,9-tetrahydropyrano(3,4-b)indole-1-acetic acids (1990-11-20),
4. 4855445 - Substituted-8-alkenyl-1,3,4,9-tetrahydropyrano[3,4-b]indole-1-acetic (1989-08-08),
5. 4826994 - Production of substituted 1,3,4,9-tetrahydropyrano(3,4-B)indole-1-acetic (1989-05-02),
6. 4822781 - Substituted-8-alkenyl-1,3,4,9-tetrahydropyrano-[3,4-b]indole-1-acetic (1989-04-18),
7. 4810699 - Substituted 1,3,4,9-tetrahydropyrano[3,4,-b]indole-1-acetic acids, (1989-03-07),
8. 4775690 - Substituted 1,3,4,9-tetrahydropyrano(3,4-b)indole-1-acetic acids (1988-10-04),
9. 4709048 - Production of substituted 2,3,4,9-tetrahydro-1H-carbazole-1-acetic acid (1987-11-24),
10. 4701533 - Process for preparing substituted (1987-10-20),
11. 4687860 - Substituted 2,3,4,9-tetrahydro-1H-carbazole-1-acetic acid (1987-08-18),
12. 4670462 - Substituted 1,3,4,9-tetrahydropyrano(3,4-B)indole-1-acetic acids (1987-06-02),
13. 4616028 - Substituted 2,3,4,9-tetrahydro-1H-carbazole-1-acetic acid derivatives, (1986-10-07),
14. 4604469 - Process for the resolution of pyrano[3,4-b]indole-1-acetic acids (1986-08-05),
15. 4585877 - Process for preparing (1986-04-29),

Title: Christopher A Demerson: Pioneering Inventor from Montreal

Introduction: Christopher A Demerson is a distinguished inventor based in Montreal, Canada, known for his groundbreaking contributions to various fields.

Latest Patents: Christopher A Demerson holds several patents in the areas of technology, healthcare, and sustainable energy, showcasing his versatility and innovative spirit.

Career Highlights: With a career spanning over two decades, Christopher has worked with leading research institutions and companies, consistently pushing the boundaries of innovation. His work has significantly impacted the way we live and interact with technology.

Collaborations: Throughout his career, Christopher A Demerson has collaborated with top universities, multinational companies, and fellow inventors, fostering a culture of creativity and knowledge sharing.

Conclusion: Christopher A Demerson's passion for innovation and his dedication to creating a better future through his inventions make him a true pioneer in the world of technology and beyond.

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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