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For the Inventor, By the Inventor

Newark, DE, United States of America

Donnie Joe Sam

This inventor holds 5 USPTO granted patents. Top assignee: E.i. Dupont De Nemours and Company. Active years: 1976-1980.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Donnie Joe Sam. Retrieved from https://idiyas.com/inventor/donnie-joe-sam

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

Calculating rank
USPTO Granted Patents = 5

% Patents Active = 100.0

Average Co-Inventor Count = 1.1

ph-index = 3

Forward Citations = 28(Granted Patents)


Location History:

  • Newark, DE (US) (1976 - 1978)
  • Wilmington, DE (US) (1980)

Company Filing History:

goldMedal5 out of 16,339 
 
E.i. Dupont De Nemours and Company
 patents

Years Active: 1976-1980

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5 patents (USPTO):Explore Patents
1. 4189611 - Ortho-nitrophenylethylene glycols (1980-02-19),
2. 4111960 - Substituted dioxolanes and photosensitive and degradable polymers useful (1978-09-05),
3. 4022777 - Imidazoquinoxaline fungicides (1977-05-10),
4. 3991033 - Photosensitive and degradable polyoxymethylene polymers and their (1976-11-09),
5. 3987171 - Quinoxaline fungicides (1976-10-19),

Title: Donnie Joe Sam: Innovator in Polymer Chemistry

Introduction

Donnie Joe Sam is a notable inventor based in Newark, DE (US). He has made significant contributions to the field of polymer chemistry, holding a total of 5 patents. His work focuses on the development of innovative materials with unique properties.

Latest Patents

One of Donnie's latest patents involves the creation of ortho-nitrophenylethylene glycols. These substituted dioxolanes are designed with the formula wherein R.sup.1 and R.sup.2 can be hydrogen or a phenyl group with various substituents. The invention aims to intercalate a polyoxymethylene polymer, resulting in a material that possesses thermally stable yet photochemically sensitive and degradable random linkages. This polymer can be utilized to create relief images by exposing it to light through a transparency, followed by heating or treatment with a base.

Career Highlights

Donnie Joe Sam is currently employed at E.I. du Pont de Nemours and Company, a leading organization in the field of chemical manufacturing. His work at the company has allowed him to explore and develop advanced materials that have practical applications in various industries.

Collaborations

Donnie has collaborated with several professionals in his field, including his coworker Mark A Wuonola. Their joint efforts have contributed to the advancement of polymer technologies and innovations.

Conclusion

Donnie Joe Sam is a distinguished inventor whose work in polymer chemistry has led to the development of innovative materials with significant applications. His contributions continue to impact the field positively.

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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