Ontario, NY, United States of America

Dennis J O'Keefe

This inventor holds 3 USPTO granted patents. Top assignee: Xerox Corporation. Active years: 1996-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Dennis J O'Keefe. Retrieved from https://idiyas.com/inventor/dennis-j-o-keefe

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


% Patents Active = 100.0

Average Co-Inventor Count = 2.8

ph-index = 3

Forward Citations = 55(Granted Patents)


Company Filing History:


Years Active: 1996-2002

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3 patents (USPTO):Explore Patents

Title: The Innovations of Dennis J O'Keefe

Introduction

Dennis J O'Keefe is a notable inventor based in Ontario, NY (US). He has made significant contributions to the field of toner technology, holding a total of 3 patents. His work primarily focuses on developing advanced materials for printing applications.

Latest Patents

O'Keefe's latest patents include innovative formulations and processes for toner resins. One of his key inventions is the "Cross-linked polyester toners and process of making such toners." This patent describes a cross-linked toner resin that is an unsaturated polyester resin, prepared using a liquid chemical initiator. The resulting resin contains less than 0.20 percent by weight of acids and is free of benzoic acid. The method involves spraying the initiator onto the resin during its melting phase and subsequently cross-linking the polymer melt under high shear.

Another significant patent is for "Magnetic toner compositions with surface additives." This invention details a toner composed of resin, magnetite treated or coated with a phosphate titanium component, along with optional wax and charge additives. The surface additives include silica and metal oxides, enhancing the performance of the toner.

Career Highlights

Dennis J O'Keefe has had a distinguished career at Xerox Corporation, where he has been instrumental in advancing toner technology. His innovative approaches have contributed to the company's reputation as a leader in printing solutions.

Collaborations

Throughout his career, O'Keefe has collaborated with notable colleagues, including Eugene Frederick Young and John J Ianni. These partnerships have fostered a creative environment that has led to groundbreaking advancements in toner technology.

Conclusion

Dennis J O'Keefe's contributions to the field of toner technology are significant and impactful. His innovative patents and collaborations have positioned him as a key figure in the industry. His work continues to influence the development of advanced printing materials.

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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