Weinstadt, Germany

Hartmut Riess

This inventor holds 1 USPTO granted patent. Top assignee: Andreas Stihl. Active years: 1987.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hartmut Riess. Retrieved from https://idiyas.com/inventor/hartmut-riess-mxqo4r45

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 1

Forward Citations = 78(Granted Patents)


Company Filing History:


Years Active: 1987

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1 patent (USPTO):Explore Patents

Title: Hartmut Riess: Innovator in Motor-Driven Chain Saw Technology

Introduction

Hartmut Riess is a notable inventor based in Weinstadt, Germany. He is recognized for his contributions to the field of power tools, particularly in the design of motor-driven chain saws. His innovative approach has led to advancements in safety and efficiency in this essential tool.

Latest Patents

Hartmut Riess holds a patent for a motor-driven chain saw. This electrically operated tool utilizes a universal motor and features two independent brake systems. The mechanical brake system acts as a safety measure, bringing the saw chain to an instantaneous stop when engaged. Additionally, the electric coasting brake quickly halts the saw chain without recoil when the switch is released. This innovative braking mechanism is achieved by reversing the polarity of one pole coil of the field winding and short-circuiting it with the rotor winding.

Career Highlights

Hartmut Riess has made significant strides in his career, particularly through his work at Andreas Stihl, a leading company in the power tool industry. His expertise in engineering and design has contributed to the development of safer and more efficient chain saws, enhancing user experience and safety.

Collaborations

Throughout his career, Hartmut has collaborated with talented individuals such as Dieter Wieland and Abou Aly. These partnerships have fostered innovation and creativity in the development of new technologies in the power tool sector.

Conclusion

Hartmut Riess stands out as an influential inventor in the realm of motor-driven chain saw technology. His innovative designs and commitment to safety have made a lasting impact on the industry.

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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