Ann Arbor, MI, United States of America

William J Hillegas

This inventor holds 5 USPTO granted patents and 2 published patent applications. Top assignees: Solohill Engineering, Inc., University of Michigan, Other. Active years: 1989-2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: William J Hillegas. Retrieved from https://idiyas.com/inventor/william-j-hillegas

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

USPTO Granted Patents = 5 

% Patents Active = 100.0

Average Co-Inventor Count = 2.6

ph-index = 4

Forward Citations = 78(Granted Patents)


Location History:

  • Ann Arbor,, MI (US) (1991)
  • Ann Arbor, MI (US) (1989 - 2009)

Company Filing History:


Years Active: 1989-2009

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5 patents (USPTO):Explore Patents

Title: Innovations by William J Hillegas

Introduction

William J Hillegas is a notable inventor based in Ann Arbor, MI (US). He has made significant contributions to the field of vaccine production, holding a total of 5 patents. His work focuses on developing methods and devices that enhance the efficiency and safety of vaccine manufacturing.

Latest Patents

One of his latest patents is a method and device for producing vaccines using animal-derived component-free (ADCF) cell culture technology. This innovative method includes steps such as attaching ADCF-adapted cells to a microcarrier, growing the cells in ADCF maintenance media, infecting the cells with vaccine media, producing virus within the cells, and harvesting the virus. Additionally, he has developed a vaccine production structure that utilizes ADCF-adapted cells that are removably attached to microcarrier beads. These microcarrier beads are made of a styrene copolymer core and feature a covalently linked tri-methylamine exterior. His method for creating these microcarrier beads involves washing them with basic and acidic solutions to ensure compatibility for cell culture.

Career Highlights

William J Hillegas has worked with reputable organizations such as Solohill Engineering, Inc. and the University of Michigan. His experience in these institutions has allowed him to refine his skills and contribute to groundbreaking research in vaccine technology.

Collaborations

Throughout his career, he has collaborated with notable individuals, including David E Solomon and James Varani. These partnerships have further enriched his work and expanded the impact of his inventions.

Conclusion

William J Hillegas is a distinguished inventor whose innovative approaches to vaccine production have the potential to significantly improve public health. His contributions to the field are marked by a commitment to advancing technology and enhancing the safety of vaccine manufacturing processes.

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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