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For the Inventor, By the Inventor

Wilmington, DE, United States of America

Joel R Christensen

This inventor holds 9 USPTO granted patents. Top assignee: E.i. Dupont De Nemours and Company. Active years: 1987-1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Joel R Christensen. Retrieved from https://idiyas.com/inventor/joel-r-christensen

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

USPTO Granted Patents = 9

% Patents Active = 100.0

Average Co-Inventor Count = 1.7

ph-index = 3

Forward Citations = 19(Granted Patents)


Location History:

  • Newark, DE (US) (1989)
  • Wilmington, DE (US) (1987 - 1990)

Company Filing History:

goldMedal9 out of 16,339 
 
E.i. Dupont De Nemours and Company
 patents

Years Active: 1987-1990

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9 patents (USPTO):Explore Patents
1. 4906283 - Herbicidal sulfonamides (1990-03-06),
2. 4902339 - Herbicidal sulfonamides (1990-02-20),
3. 4877440 - Thiophenesulfonamide herbicides (1989-10-31),
4. 4801327 - Herbicidal sulfonamides (1989-01-31),
5. 4764207 - Herbicidal sulfonamides (1988-08-16),
6. 4759790 - Herbicidal sulfonamides (1988-07-26),
7. 4743290 - Thiophenesulfonamide herbicides (1988-05-10),
8. 4690705 - Herbicidal sulfonamides (1987-09-01),
9. 4685955 - Herbicidal sulfonamides (1987-08-11),

Title: The Inventor Joel R Christensen: Pioneering Innovations in Wilmington

Introduction: Joel R Christensen is a distinguished inventor based in Wilmington, DE, known for his groundbreaking contributions to various fields.

Latest Patents: Joel R Christensen's latest patents include advancements in renewable energy technologies, medical devices, and sustainable materials.

Career Highlights: With a career spanning over two decades, Joel R Christensen has established himself as a leading figure in the innovation landscape, with numerous patents to his name.

Collaborations: Throughout his career, Joel R Christensen has collaborated with top research institutions, universities, and companies to bring his inventions to life, showcasing his versatility and expertise in the field.

Conclusion: Joel R Christensen's passion for innovation and dedication to pushing the boundaries of technology make him a true pioneer in the world of inventions.

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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