Company Filing History:
Years Active: 1999-2000
Title: Innovations by Warren J Johnson
Introduction
Warren J Johnson is an accomplished inventor based in Hudson, WI (US). He has made significant contributions to the field of pavement marking technology, holding a total of 2 patents. His work focuses on enhancing the durability and effectiveness of pavement markers.
Latest Patents
One of his latest patents is the Raised Retroreflective Pavement Marker. This innovative pavement marker features an unpotted upper shell and a lower base plate that together define a housing. The design includes a number of ribs oriented substantially perpendicular to the inner wall of the base plate. The upper shell is made of a plastic material with moderate to high flexural modulus and high impact strength. The lower base plate is constructed from a material with a Young's modulus of at least approximately 300,000 PSI. This unique construction allows the pavement marker to resist delamination from a roadway surface when secured with a soft adhesive.
Another notable patent is the Pavement Marking Tape. This tape includes a scrim that is extensible, enabling it to conform to irregularities in a road surface. This feature allows the tape to bond more securely to the surface, enhancing its effectiveness in marking.
Career Highlights
Warren J Johnson has dedicated his career to developing innovative solutions in pavement marking. His work at 3M Innovative Properties Company has positioned him as a key player in this industry. His inventions have not only improved the functionality of pavement markers but have also contributed to road safety.
Collaborations
Throughout his career, Warren has collaborated with notable colleagues, including Dale H Haunschild and Neil A Hodson. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies in pavement marking.
Conclusion
Warren J Johnson's contributions to pavement marking technology through his patents demonstrate his commitment to innovation and safety. His work continues to influence the industry and improve road conditions for all users.