This inventor holds 4 USPTO granted patents. Top assignees: Gm Global Technolgoy Operations, Inc., Delphi Technologies, Inc.. Active years: 1992-2004.
Company Filing History:
3 out of 31,844 
1 out of 5,161 
Years Active: 1992-2004
Title: Innovations of James M Petrofes
Introduction
James M Petrofes is an accomplished inventor based in Tipp City, OH (US). He holds a total of 4 patents that showcase his expertise in automotive technology and sensor systems. His innovative contributions have significantly impacted the field of vehicle dynamics and safety.
Latest Patents
One of his latest patents is for a "Hi-resolution digital steering sensor fault detection" system. This invention involves monitoring steering wheel position information from a digital steering wheel position sensor at set time intervals. It determines the current and previous steering wheel position information, advancing a value change counter if the positions are the same. The system also monitors vehicle speed and sets fault bit information based on specific conditions. This technology can diagnose faults by comparing fault bits to a fault table.
Another notable patent is for a "Motor vehicle suspension with damper having a quickly stopped rotatable." This suspension system features a damper with a rotatable member that produces separate discrete damping characteristics. The feedback apparatus includes a contact pad for each position and an electric circuit that generates output voltage based on the contact status. This allows for immediate stopping of the rotatable member upon detection of a selected position, enhancing vehicle performance.
Career Highlights
James has worked with prominent companies such as GM Global Technology Operations, Inc. and Delphi Technologies, Inc. His experience in these organizations has allowed him to develop and refine his innovative ideas in automotive technology.
Collaborations
Throughout his career, James has collaborated with notable individuals, including David A Hoptry and David Andrew Shal. These partnerships have contributed to the advancement of his inventions and the successful implementation of his ideas.
Conclusion
James M Petrofes is a distinguished inventor whose work in automotive technology has led to significant advancements in vehicle safety and performance. His patents reflect his commitment to innovation and excellence in the field.