Ellisville, MO, United States of America

Donald F Loncrini

This inventor holds 3 USPTO granted patents. Top assignee: Mallinckrodt, Inc.. Active years: 1982-1985.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Donald F Loncrini. Retrieved from https://idiyas.com/inventor/donald-f-loncrini

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 2.6

ph-index = 3

Forward Citations = 14(Granted Patents)


Company Filing History:


Years Active: 1982-1985

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3 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Donald F. Loncrini

Introduction

Donald F. Loncrini is a notable inventor based in Ellisville, MO (US). He has made significant contributions to the field of antimicrobial compositions and emulsions. With a total of 3 patents, his work has had a considerable impact on the industry.

Latest Patents

Loncrini's latest patents include innovative compositions of p-hydroxybenzoic acid esters and methods of preparation. One of his notable inventions is a composition that exhibits broad-spectrum antimicrobial activity while being both freeze and heat stable. This composition consists of a clear solution containing up to approximately 90% by weight of a eutectic mixture of three or more lower alkyl esters of p-hydroxybenzoic acid, such as isopropyl p-hydroxybenzoate, isobutyl p-hydroxybenzoate, and n-butyl p-hydroxybenzoate. The ratio of these components ranges from approximately 1:1:1 to 4:2:2. Additionally, the composition includes approximately 10% to 90% by weight of a 'Glydant' solution, which is composed of 55% 1,3-bis(hydroxymethyl)-5,5-dimethylhydantoin and 45% water, along with at least approximately 0.5% by weight of an anionic surfactant. Another significant patent involves stable emulsions of p-hydroxybenzoic acid esters, which are heat and freeze-thaw stable oil-in-water emulsions.

Career Highlights

Donald F. Loncrini has built a successful career at Mallinckrodt, Inc., where he has been instrumental in developing innovative solutions in his field. His expertise in creating stable emulsions and antimicrobial compositions has positioned him as a key figure in the industry.

Collaborations

Throughout his career, Loncrini has collaborated with talented individuals such as Thomas E. Haag and Steven R. Freebersyser. These collaborations have further enhanced the innovative work being done in the field of antimicrobial compositions.

Conclusion

Donald F. Loncrini's contributions to the field of antimicrobial compositions and emulsions demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of chemical

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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