Pleasanton, CA, United States of America

Maria S Donigan

This inventor holds 1 USPTO granted patent. Top assignee: Xerox Corporation. Active years: 1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Maria S Donigan. Retrieved from https://idiyas.com/inventor/maria-s-donigan

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 = 5.0

ph-index = 1


Company Filing History:


Years Active: 1994

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1 patent (USPTO):Explore Patents

Title: Maria S. Donigan: Innovator in Electrographic Technology

Introduction

Maria S. Donigan is a notable inventor based in Pleasanton, California. She has made significant contributions to the field of electrographic technology, particularly through her innovative designs and patents. Her work has been instrumental in advancing the capabilities of writing head assemblies used in various applications.

Latest Patents

Maria holds a patent for an "Amorphous silicon electrographic writing head assembly with protective." This invention focuses on reducing voltage drift in high voltage driving transistors. The writing head features a substrate with a first surface and a second surface. The first surface is equipped with thin film elements, which include an array of writing electrodes, high voltage transistors, and interconnecting circuitry. Additionally, the design incorporates protective cover glasses and side glasses, creating a channel over the high voltage driving transistor.

Career Highlights

Maria is currently employed at Xerox Corporation, where she continues to innovate and develop new technologies. Her work at Xerox has allowed her to collaborate with other talented professionals in the field, enhancing the company's product offerings and technological advancements.

Collaborations

Some of Maria's coworkers include Patrick A. O'Connell and So V. Tien. Their collaborative efforts have contributed to the success of various projects within the company.

Conclusion

Maria S. Donigan is a pioneering inventor whose work in electrographic technology has made a lasting impact. Her innovative patent and contributions at Xerox Corporation highlight her dedication to advancing technology in her field.

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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