Location History:
- Saint Paul, MN (US) (1990)
- Lake Elmo, MN (US) (1990 - 2016)
Company Filing History:
3 out of 7,865 
1 out of 14,067 
Years Active: 1990-2016
Title: John T. Simpson: Innovator in Illumination and Adhesive Technologies
Introduction
John T. Simpson is a notable inventor based in Lake Elmo, MN (US). He has made significant contributions to the fields of illumination devices and adhesive technologies. With a total of 4 patents to his name, Simpson's work reflects a commitment to innovation and practical applications.
Latest Patents
One of his latest patents is for a Color Shift Sign. This invention involves an illumination device that includes a recycling cavity defined by recycling surfaces and a light emission surface. A light source is positioned within the cavity, and a spectrum modifying layer is applied to a portion of the recycling surface. This layer produces a spectral response that differs from that of the recycling surface. In various embodiments, the spectrum modifying layer can shift the spectral properties of the emitted light, selectively absorb portions of the light spectrum, and re-emit light at longer wavelengths.
Another significant patent is for Priming Polymeric Surfaces for Cyanoacrylate Adhesives. This invention provides a primed polymeric article that includes a polymeric substrate with graft polymerized organic nucleophilic graft-polymerizable monomers. These monomers accelerate the curing process of cyanoacrylate adhesives. The invention also details a method for adhering a polymeric substrate to another substrate using cyanoacrylate adhesive.
Career Highlights
Throughout his career, John T. Simpson has worked with prominent companies, including Minnesota Mining and Manufacturing Company and 3M Innovative Properties Company. His experience in these organizations has allowed him to develop and refine his innovative ideas.
Collaborations
Simpson has collaborated with notable coworkers such as James J. Kobe and Kimberly K. Harmon. Their combined expertise has contributed to the successful development of various projects and patents.
Conclusion
John T. Simpson's contributions to illumination and adhesive technologies demonstrate his innovative spirit and dedication to advancing these fields. His patents reflect a blend of creativity and practicality, making a lasting impact on the industry.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.