Oakdale, MN, United States of America

Frederick R Kroeger, Jr

This inventor holds 2 USPTO granted patents. Top assignee: 3M Innovative Properties Company. Active years: 1982-1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Frederick R Kroeger, Jr. Retrieved from https://idiyas.com/inventor/frederick-r-kroeger-jr

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 = 2.0

ph-index = 2

Forward Citations = 80(Granted Patents)


Location History:

  • Saint Paul, MN (US) (1982)
  • Oakdale, MN (US) (1996)

Company Filing History:


Years Active: 1982-1996

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2 patents (USPTO):Explore Patents

Title: Innovations of Frederick R Kroeger, Jr.

Introduction

Frederick R Kroeger, Jr. is a notable inventor based in Oakdale, MN (US). He has made significant contributions to the field of imaging systems and pressure-sensitive technologies. With a total of 2 patents, his work showcases innovative approaches to solving complex engineering challenges.

Latest Patents

Kroeger’s latest patents include an "Imaging system employing effective electrode geometry and processing." This invention utilizes a photoconductive material capable of bearing a latent photostatic image, along with a series of elongated parallel electrodes. The system allows for selective scanning of these electrodes to generate charge carriers, which are then detected in a time-ordered manner. This dynamic rearrangement enhances the detection capabilities, producing a pixellated representation of the latent image with improved resolution and reduced edge-effect artifacts.

Another significant patent is the "Output circuit for piezoelectric polymer pressure sensor." This invention describes a pressure-sensitive apparatus that generates electrical signals through a layered structure consisting of conductive layers and piezoelectric polymer films. The design is adaptable for use in pressure-sensitive matrix keyboards, showcasing versatility in application. The piezoelectric polymer film, specifically polyvinylidene fluoride, plays a crucial role in amplifying small charge pulses induced by strain.

Career Highlights

Frederick R Kroeger, Jr. is associated with Minnesota Mining and Manufacturing Company, a leading organization known for its innovative products and technologies. His work at this company has allowed him to contribute to advancements in various fields, particularly in imaging and sensor technologies.

Collaborations

Kroeger has collaborated with notable coworkers such as Richard A Norquist and Owen L Nelson. These partnerships have likely fostered a creative environment that encourages innovation and the development of groundbreaking technologies.

Conclusion

Frederick R Kroeger, Jr. stands out as an influential inventor whose work has significantly impacted imaging systems and pressure-sensitive technologies. His patents reflect a commitment to innovation and problem-solving in engineering.

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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