Kaiserslautern, Germany

Karl-Heinz Keller

This inventor holds 2 USPTO granted patents. Top assignee: Pfaff Industriemaschinen Gmbh. Active years: 1982-1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Karl-Heinz Keller. Retrieved from https://idiyas.com/inventor/karl-heinz-keller

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 = 3.4

ph-index = 2

Forward Citations = 6(Granted Patents)


Company Filing History:


Years Active: 1982-1990

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2 patents (USPTO):Explore Patents

Title: Innovations by Karl-Heinz Keller

Introduction

Karl-Heinz Keller is a notable inventor based in Kaiserslautern, Germany. He has made significant contributions to the field of sewing technology, holding 2 patents that enhance the functionality and efficiency of sewing machines.

Latest Patents

One of his latest inventions is a sewing machine workpiece alignment device. This device is designed to align a workpiece fold edge, such as a shirt buttonhole strip. It features a ruler stop positioned on the sewing machine work surface, along with an alignment finger connected to a double action cylinder. This allows the finger to move between two positions, engaging the folded section to align it with the ruler stop. Another innovative patent by Keller is a looper lubricating device for sewing machines. This device includes an oil line with an inlet submerged in an oil supply and a capillary member that facilitates the flow of oil to a mixing chamber within an injection nozzle. The design ensures efficient lubrication of the looper, enhancing the overall performance of the sewing machine.

Career Highlights

Keller works at Pfaff Industriemaschinen GmbH, a company renowned for its advanced sewing machine technology. His work has contributed to the development of innovative solutions that improve sewing processes and machine reliability.

Collaborations

Throughout his career, Keller has collaborated with esteemed colleagues such as Ernst Albrecht and Reiner Hensel. These partnerships have fostered a creative environment that encourages the development of cutting-edge sewing technologies.

Conclusion

Karl-Heinz Keller's contributions to sewing machine technology through his patents demonstrate his innovative spirit and commitment to enhancing the industry. His work continues to influence the field, making sewing processes more efficient and effective.

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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