This inventor holds 2 USPTO granted patents. Top assignees: Boardwalk/starcity Corporation, Transportation Technology Center, Inc.. Active years: 1994-2015.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 1 
1 out of 11 Years Active: 1994-2015
Title: Innovations of Steven Mark Renfrow
Introduction
Steven Mark Renfrow is an accomplished inventor based in Pueblo, Colorado. He has made significant contributions to the field of technology with his innovative patents. Renfrow's work primarily focuses on systems that enhance safety and efficiency in railway operations and access control systems.
Latest Patents
Renfrow holds two notable patents. The first patent is titled "System and method for detecting broken rail and occupied track from a railway vehicle." This invention provides a method for detecting broken rail, misaligned turnouts, and track occupancy ahead of or behind a railway vehicle traveling on a railroad track. The system utilizes shunts that extend between the rails at intervals along the track, each with distinct electrical signal transmission characteristics. A test unit on the railway vehicle induces a test signal in a rail, creating a track circuit that helps analyze the status of the railroad track.
The second patent is titled "Apparatus and method for accessing events, areas and activities." This invention outlines an access control system for an activities center, employing a variety of access cards and a comptroller processor. The system verifies customer account files to determine credit availability and manages access to various activities based on customer account status.
Career Highlights
Throughout his career, Renfrow has worked with several companies, including Boardwalk/Starcity Corporation and Transportation Technology Center, Inc. His experience in these organizations has contributed to his expertise in developing innovative solutions in technology.
Collaborations
Renfrow has collaborated with notable individuals such as John Dorrough and Alan Lee Polivka. These partnerships have likely enriched his work and led to further advancements in his projects.
Conclusion
Steven Mark Renfrow is a notable inventor whose contributions to railway safety and access control systems demonstrate his innovative spirit. His patents reflect a commitment to enhancing technology for practical applications.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile