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For the Inventor, By the Inventor

Highland Park, NJ, United States of America

Fred G Schreiber

This inventor holds 12 USPTO granted patents. Top assignees: Rhone-Poulenc, Inc., Biocraft Laboratories, Inc.. Active years: 1982-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Fred G Schreiber. Retrieved from https://idiyas.com/inventor/fred-g-schreiber

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

Calculating rank
USPTO Granted Patents = 12

% Patents Active = 100.0

Average Co-Inventor Count = 1.9

ph-index = 5

Forward Citations = 84(Granted Patents)


Company Filing History:

goldMedal10 out of 190 
 
Rhone-Poulenc, Inc.
 patents
silverMedal2 out of 3 
 
Biocraft Laboratories, Inc.
 patents

Years Active: 1982-1992

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12 patents (USPTO):Explore Patents
1. 5142043 - Process for preparing cephalexin monohydrate (1992-08-25),
2. 5034522 - Method for the production of 3-methyl cephem derivatives (1991-07-23),
3. 4920204 - Ceric hydrocarbyloxy nitrates and their use in organic synthesis (1990-04-24),
4. 4801692 - Ceric alkanolatoamines (1989-01-31),
5. 4800072 - Anhydrous cerous nitrate-ammonium nitrate complex and a process for its (1989-01-24),
6. 4703109 - Tricyclopentadienyl cerium and process for preparing the same (1987-10-27),
7. 4663439 - Process for the preparation of ceric alkoxides (1987-05-05),
8. 4647401 - Process for preparing colloidal ceric oxide and complexes thereof with (1987-03-03),
9. 4545923 - Process for preparing colloidal ceric oxide and complexes thereof with (1985-10-08),
10. 4492655 - Tricyclopentadienyl cerium and process for preparing the same (1985-01-08),
11. 4489000 - Process for the preparation of ceric alkoxides (1984-12-18),
12. 4314070 - Process for producing meta-phenoxybenzoic acids and esters (1982-02-02),

Title: Fred G Schreiber: Innovator in Pharmaceutical Chemistry

Introduction

Fred G Schreiber is a notable inventor based in Highland Park, NJ (US), recognized for his significant contributions to pharmaceutical chemistry. With a total of 12 patents to his name, Schreiber has made remarkable advancements in the synthesis of cephalosporin antibiotics.

Latest Patents

Among his latest patents is a process for preparing cephalexin monohydrate. This innovative method involves the silylation of 7-ADCA, yielding high purity and improved yield when the silylation step is conducted by refluxing in a solvent with a boiling point exceeding 100 degrees Celsius. Another notable patent is a method for the production of 3-methyl cephem derivatives. This method enhances the yields and purities of cophalexin monohydrate or cephradine monohydrate by utilizing a unique acylation process that separates the acid acceptor from the desired product, thus preventing contamination.

Career Highlights

Throughout his career, Schreiber has worked with prominent companies in the pharmaceutical industry, including Rhone-Poulenc, Inc. and Biocraft Laboratories, Inc. His work has significantly impacted the field, particularly in the development of antibiotics.

Collaborations

Schreiber has collaborated with esteemed colleagues such as Peter S Gradeff and Vincent J Charte, contributing to various projects that have advanced pharmaceutical research.

Conclusion

Fred G Schreiber's innovative work in pharmaceutical chemistry has led to significant advancements in antibiotic synthesis. His contributions continue to influence the field and improve healthcare outcomes.

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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