This inventor holds 3 USPTO granted patents. Top assignee: 3M Innovative Properties Company. Active years: 1976-1985.
Company Filing History:
Years Active: 1976-1985
Title: The Innovations of Robert F. Coles
Introduction
Robert F. Coles is a notable inventor based in Lake Elmo, MN (US). He has made significant contributions to the field of dye chemistry and photographic materials. With a total of 3 patents, Coles has demonstrated his innovative spirit and technical expertise.
Latest Patents
Coles' latest patents include advancements in isoindoline cationic dyes. These dyes are characterized by isoindoline derivatives that are monosubstituted in the 1-position. The cyclic radical R can be an aromatic ring, a substituted aromatic ring, a tetrahydrogenated aromatic ring, a nitrogen-containing heterocyclic ring, or a sulfur-containing heterocyclic ring. The substituent R1 is represented by a specific formula involving various atoms, making these derivatives useful for dyeing and printing textile fibers, as well as for photographic applications. Another significant patent involves white light handleable photographic materials. This innovation allows photographic materials to be safely handled under white light conditions, addressing the challenges posed by traditional handling methods.
Career Highlights
Coles is associated with the Minnesota Mining and Manufacturing Company, a well-known entity in the field of materials science. His work has contributed to the development of products that enhance the safety and efficiency of photographic processes.
Collaborations
Coles has collaborated with notable coworkers such as Ivan H. Skoog and Jonathan P. Kitchin. Their combined efforts have likely led to advancements in their respective fields.
Conclusion
Robert F. Coles is a distinguished inventor whose work in dye chemistry and photographic materials has made a lasting impact. His innovative patents reflect his commitment to advancing technology in these areas.