Company Filing History:
14 out of 167 
4 out of 19 
3 out of 1,453 
Years Active: 1976-2009
Title: The Innovative Contributions of Sidney A. Heenan
Introduction
Sidney A. Heenan, located in Park Ridge, IL, is a prolific inventor known for his significant contributions to the field of retroreflective technology. With a remarkable portfolio of 23 patents, he has been instrumental in developing novel methods and articles that enhance visibility and performance in various applications.
Latest Patents
His latest patents include "Retroreflective articles having microcubes" and "tools and methods for forming microcubes." These innovations present a method for tooling a pattern of retroreflective microcubes. The pattern can be subdivided into smaller increments, each featuring straight line tooling paths that avoid passing through solid parts of the incremental pattern. This method allows for diverse adaptions and specific microcube shapes, enhancing optical properties such as entrance angularity, incidence angularity, observation angularity, and retroreflectance. The designs produced can achieve 100% active aperture at nearly zero degrees entrance angle, making them invaluable for applications such as pavement markers and highway signs.
Career Highlights
Heenan's career has seen him work with prominent organizations such as Amerace Corporation and Stimsonite Corporation. His experience within these companies has allowed him to refine his techniques and expand his knowledge in the field of retroreflectivity.
Collaborations
Throughout his career, Sidney A. Heenan has collaborated with notable colleagues, including Robert M. Flanagan and Liviu A. Coman. These partnerships have propelled innovations in retroreflective technologies and have led to advancements that significantly impact safety and visibility on roadways.
Conclusion
Sidney A. Heenan's inventive spirit has resulted in critical advancements in retroreflective technologies, showcasing his expertise and dedication to innovation. Through his patents and collaborations, he continues to influence the industry, ensuring that his contributions will have lasting effects on safety and visibility in various applications.