Richterswil, Switzerland

Alfred Grassl

This inventor holds 2 USPTO granted patents. Top assignees: Kontron Holding Ag, Kontron Instruments Holdings Nv. Active years: 1988-1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Alfred Grassl. Retrieved from https://idiyas.com/inventor/alfred-grassl

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 = 15(Granted Patents)


Company Filing History:


Years Active: 1988-1991

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2 patents (USPTO):Explore Patents

Title: Alfred Grassl: Innovator in Motor Control and Centrifuge Technology

Introduction

Alfred Grassl is a notable inventor based in Richterswil, Switzerland. He has made significant contributions to the fields of motor control and centrifuge technology. With a total of 2 patents, Grassl's work showcases his innovative approach to engineering challenges.

Latest Patents

Grassl's latest patents include a sophisticated motor control system designed for shunt wound direct current motors used in driving centrifuges. This apparatus allows for smooth acceleration by regulating the bottom speed range according to a preset slope current, followed by full excitation of the armature current. Additionally, it achieves smooth braking by applying full excitation to the field current during deceleration, followed by a preset slope current. Another significant patent involves a centrifuge equipped with an interchangeable rotor that features a machine-readable information support means. This system includes detectors for scanning the information support and an electronic circuit for processing the received data. The information support comprises an array of permanent magnet pins, strategically distributed over the rotor, with varying orientations of their magnetic poles.

Career Highlights

Throughout his career, Alfred Grassl has worked with prominent companies, including Kontron Holding AG and Kontron Instruments Holdings NV. His experience in these organizations has contributed to his expertise in developing innovative technologies.

Collaborations

Grassl has collaborated with various professionals in his field, including Erhard Knorr, enhancing his projects through shared knowledge and expertise.

Conclusion

Alfred Grassl's contributions to motor control and centrifuge technology reflect his innovative spirit and dedication to engineering excellence. His patents demonstrate a commitment to advancing technology in practical and impactful ways.

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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