Sussex, WI, United States of America

David F Christofferson

This inventor holds 7 USPTO granted patents and 2 published patent applications. Top assignees: Quad/graphics, Inc., Quadtech, Inc.. Active years: 2002-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: David F Christofferson. Retrieved from https://idiyas.com/inventor/david-f-christofferson

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

USPTO Granted Patents = 7 

% Patents Active = 71.4

Average Co-Inventor Count = 2.3

ph-index = 3

Forward Citations = 26(Granted Patents)


Company Filing History:


Years Active: 2002-2015

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7 patents (USPTO):Explore Patents

Title: The Innovative Contributions of David F. Christofferson

Introduction

David F. Christofferson is a notable inventor based in Sussex, Wisconsin, with a remarkable portfolio of seven patents. His work primarily focuses on advancements in printing technology and assembly systems, showcasing his commitment to innovation in the field.

Latest Patents

Among his latest patents is the "Adjustable Trimming Assembly," which presents a method for trimming printed media. This invention involves selecting printed media based on predetermined delivery sequence data and positioning it on a conveyor. The process includes electronically controlling a stop and a trimming device to adjust the trimming location based on size data of the printed media. Another significant patent is the "In-line Shell Processing" system, designed for printing and assembling printed products. This system features a binding line and multiple pockets for delivering signatures, along with a personalization line that prints variable information on substrates.

Career Highlights

Throughout his career, David has worked with prominent companies such as Quad/Graphics, Inc. and QuadTech, Inc. His experience in these organizations has contributed to his expertise in the printing and assembly sectors.

Collaborations

David has collaborated with notable individuals in his field, including William T. Graushar and John C. Geres. These partnerships have likely enriched his innovative endeavors and expanded his impact on the industry.

Conclusion

David F. Christofferson's contributions to printing technology and assembly systems reflect his dedication to innovation. His patents and career achievements highlight his significant role in advancing these fields.

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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