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For the Inventor, By the Inventor

Kalamazoo, MI, United States of America

John C Knight

This inventor holds 12 USPTO granted patents. Top assignees: The Upjohn Co., Other. Active years: 1977-1984.

IDiyas Innovation Intelligence. (2026). Inventor Profile: John C Knight. Retrieved from https://idiyas.com/inventor/john-c-knight

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

USPTO Granted Patents = 12

% Patents Active = 100.0

Average Co-Inventor Count = 2.1

ph-index = 3

Forward Citations = 24(Granted Patents)


Location History:

  • Kalamazoo Township, Kalamazoo County, MI (US) (1977 - 1978)
  • Kalamazoo, MI (US) (1977 - 1984)

Company Filing History:

goldMedal11 out of 2,170 
 
The Upjohn Co.
 patents
silverMedal1 out of 834,513 
Other
 patents

Years Active: 1977-1984

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12 patents (USPTO):Explore Patents
1. 4443541 - Process for preparing an indenedione and a mycobacterium culture therefor (1984-04-17),
2. 4431591 - 24-Nor-1,4-choladiene-3,22-dione (1984-02-14),
3. 4429041 - Process of producing 9-hydroxy-3-oxo-4,17(20)-pregnadiene-20-carboxylic (1984-01-31),
4. 4425429 - Composition of matter and process (1984-01-10),
5. 4423146 - Composition of matter and process (1983-12-27),
6. 4405525 - Composition of matter and process (1983-09-20),
7. 4329432 - Mycobacterium fortuitum strain (1982-05-11),
8. 4304860 - Process for the microbial transformation of steroids (1981-12-08),
9. 4176123 - Steroid intermediates (1979-11-27),
10. 4098647 - Composition of matter and process (1978-07-04),
11. 4042459 - Composition of matter and process (1977-08-16),
12. 4039381 - Composition of matter and process (1977-08-02),

Title: The Innovative Contributions of John C Knight

Introduction

John C Knight is a notable inventor based in Kalamazoo, MI (US), recognized for his significant contributions to the field of microbiology and steroid chemistry. With a total of 12 patents to his name, Knight has made remarkable advancements that have implications in various scientific applications.

Latest Patents

Among his latest patents is a process for preparing an indenedione, which involves the microbiological conversion of steroids to a specific compound known as (2+)-(7aS) 2,3,7,7-tetrahydro-7a-methyl-(1H)-indene-1,5(6H)-dione. This innovative process showcases his expertise in microbiological techniques. Another significant patent is for the novel fermentation process aimed at producing the steroid intermediate 24-nor-1,4-choladiene-3,22-dione. This compound can be further converted into valuable corticoids using established methods, highlighting the practical applications of his work.

Career Highlights

Throughout his career, John C Knight has worked with prominent organizations, including The Upjohn Company, where he contributed to various research initiatives. His work has been instrumental in advancing the understanding and application of steroid chemistry.

Collaborations

Knight has collaborated with notable colleagues such as Merle G Wovcha and Alfred B Garcia, further enhancing the impact of his research through teamwork and shared expertise.

Conclusion

John C Knight's innovative work in microbiology and steroid chemistry has led to significant advancements in the field. His contributions, reflected in his patents, continue to influence scientific research and applications.

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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