Standish, United Kingdom

Andrew Damian Defrietas

This inventor holds 1 USPTO granted patent. Top assignee: Torotrak (Development) Limited. Active years: 2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Andrew Damian Defrietas. Retrieved from https://idiyas.com/inventor/andrew-damian-defrietas

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 = 4.0

ph-index = 1

Forward Citations = 21(Granted Patents)


Company Filing History:


Years Active: 2009

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1 patent (USPTO):Explore Patents

Title: Andrew Damian Defrietas: Innovator in Continuously Variable Transmissions

Introduction

Andrew Damian Defrietas is a notable inventor based in Standish, GB. He has made significant contributions to the field of mechanical engineering, particularly in the development of continuously variable transmissions. His innovative approach has led to the creation of a unique transmission unit that enhances the efficiency and performance of vehicles.

Latest Patents

Andrew holds a patent for a continuously variable ratio transmission unit. This invention features first and second discs that rotate about a main axis, with a toroidal cavity defined between them. The design incorporates a plurality of rollers that transmit drive from one disc to the other. Each roller is coupled to a respective carriage through a bearing arrangement, allowing for adjustable net force and varying transmission ratios.

Career Highlights

Andrew is currently employed at Torotrak (Development) Limited, where he continues to work on innovative solutions in the field of transmissions. His expertise and dedication to engineering have positioned him as a key player in the development of advanced mechanical systems.

Collaborations

Throughout his career, Andrew has collaborated with talented individuals such as Christopher John Greenwood and Brian Joseph Dutson. These partnerships have fostered a creative environment that encourages innovation and the sharing of ideas.

Conclusion

Andrew Damian Defrietas is a distinguished inventor whose work in continuously variable transmissions exemplifies the spirit of innovation. His contributions to the field are paving the way for advancements in vehicle performance and efficiency.

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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