Company Filing History:
9 out of 665 
1 out of 1 
1 out of 3,395 
Years Active: 1991-2001
Title: Michael R Friswell: Innovator in Color Canceling Marking Systems
Introduction
Michael R Friswell is a notable inventor based in Wayne, NJ (US), recognized for his contributions to the field of dye compositions and marking systems. He holds a total of 11 patents, showcasing his innovative spirit and dedication to advancing technology.
Latest Patents
Among his latest patents, Friswell has developed a color canceling marking system. This system involves mixing two or more dyes or markers, including one with an absorbance peak in the 400 to 500 nm range and another with an absorbance peak in the 560 to 700 nm range. When added to a liquid, such as petroleum fuel, at combined levels of 5 to 100 ppm, the colors of the dyes and/or markers cancel each other out, resulting in a liquid that appears "water-white." Another significant patent is for fluorescent tracer dyes, which have a specific formula where R¹ and R² can be selected from various alkyloxyalkyl and alkyl groups. This dye composition is particularly useful as a fluorescent tracer in refrigerant lubricants of the polyol ester types used in non-Freon refrigerants.
Career Highlights
Throughout his career, Friswell has worked with notable companies, including Morton International, Inc. His experience in these organizations has contributed to his expertise in the field of dye technology and marking systems.
Collaborations
Friswell has collaborated with several professionals, including Michael P Hinton and Alejandro Zimin, Sr. These collaborations have likely enriched his work and led to innovative advancements in his projects.
Conclusion
Michael R Friswell is a distinguished inventor whose work in color canceling marking systems and fluorescent tracer dyes has made a significant impact in his field. His numerous patents reflect his commitment to innovation and excellence in technology.