Wallingford, PA, United States of America

Tobias O Yellin

This inventor holds 24 USPTO granted patents, primarily in Pharmaceutical Compositions. Top assignees: Ici Americas, Inc., Imperial Chemical Industries Limited. Active years: 1979-1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tobias O Yellin. Retrieved from https://idiyas.com/inventor/tobias-o-yellin

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

Calculating rank

USPTO Granted Patents = 24

% Patents Active = 100.0

Average Co-Inventor Count = 2.4

ph-index = 8

Forward Citations = 175(Granted Patents)

Location History:

Wallingford, PA (US) (1979 - 1988)
Fremont, CA (US) (1984 - 1988)

Company Filing History:

Imperial Chemical Industries Limited

patents

where one patent can have more than one assignee

Years Active: 1979-1988

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Areas of Expertise:

Haloguanidine Intermediates

Histamine H2-Antagonists

Pharmaceutical Compositions

Guanidine Compounds

Thiadiazoles

Oxadiazoles

Amide Derivatives

Antisecretory Derivatives

Heterocyclic Compounds

Guanidino Imidazoles

Carbonyl Derivatives

Substituted Guanidine

24 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4762932 - Haloguanidine intermediates (1988-08-09),

2. 4746672 - Oxides of 1,2,5-thiadiazoles, their use in pharmaceutical compositions (1988-05-24),

3. 4696933 - Guanidine compounds useful as histamine H2-antagonists (1987-09-29),

4. 4665073 - Haloalkylguanidine compounds, pharmaceutical compositions and methods (1987-05-12),

5. 4657908 - Carbonyl derivatives (1987-04-14),

6. 4604465 - Haloguanidine intermediates (1986-08-05),

7. 4496571 - Histamine H2-antagonists (1985-01-29),

8. 4496564 - Amide derivatives (1985-01-29),

9. 4493840 - Antisecretory guanidine derivatives, and pharmaceutical compositions (1985-01-15),

10. 4464374 - Substituted guanidine derivatives, processes, pharmaceutical (1984-08-07),

11. 4447441 - Haloalkylguanidine compounds, pharmaceutical compositions and methods, (1984-05-08),

12. 4374836 - Antisecretory heterocyclic derivatives, process for their manufacture (1983-02-22),

13. 4362728 - Haloguanidine compounds, pharmaceutical compositions and methods of use (1982-12-07),

14. 4347370 - Guanidine derivatives of imidazoles and thiazoles (1982-08-31),

15. 4338448 - 3-Chloroalkyl-5-guanidino-1,2,4-oxadiazoles (1982-07-06),

Title: Tobias O. Yellin: Innovator in Pharmaceutical Patents

Introduction

Tobias O. Yellin, based in Wallingford, PA, is a prolific inventor with an impressive array of 24 patents to his name. His work has significantly contributed to the pharmaceutical industry, particularly in the area of gastric acid secretion inhibitors.

Latest Patents

Among Tobias O. Yellin's latest inventions is a patent for Haloguanidine intermediates, which includes compounds useful for inhibiting gastric acid secretion and treating peptic ulcers caused or exacerbated by gastric acidity. The compounds presented in this patent include various forms where R¹ and R² can be hydrogen, C₁-₁₀ alkyl, cycloalkyl, or cycloalkylalkyl, with the provision for these groups to be halogen-substituted. Additionally, he has developed derivatives of 1,2,5-thiadiazoles that act as histamine H-2 antagonists, providing further options in managing gastric acid secretion.

Career Highlights

Tobias has worked with notable companies in the chemical and pharmaceutical sectors, including Ici Americas, Inc. and Imperial Chemical Industries Limited. His expertise has been instrumental in advancing the research and development of various pharmaceutical compositions.

Collaborations

Throughout his career, Tobias O. Yellin has collaborated with eminent colleagues, including David J. Gilman and Derrick F. Jones. These partnerships have fostered an innovative environment, leading to the development of effective pharmaceutical solutions.

Conclusion

With a robust portfolio of patents and a career dedicated to pharmaceutical innovation, Tobias O. Yellin exemplifies the spirit of invention in the medical field. His contributions not only enhance treatment options for patients but also reflect the significant role of inventors in advancing healthcare.

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]