This inventor holds 19 USPTO granted patents. Top assignees: Ciba-Geigy Corporation, Ciba Specialty Chemicals Corporation, Ideaware Squared, Inc.. Active years: 1994-2026.
Company Filing History:
12 out of 6,858 
6 out of 1,524 
1 out of 5 Years Active: 1994-2026
Title: The Innovative Journey of Tyler A Stevenson
Introduction
Tyler A Stevenson is a notable inventor based in Teaneck, NJ (US). He has made significant contributions to the field of innovation, holding a total of 19 patents. His work spans various domains, showcasing his versatility and creativity as an inventor.
Latest Patents
One of his latest patents is the Outdoor Weather Protection Assembly. This invention includes three or more support legs, each having an upper end and a lower end. The support legs are designed with a fabric that features a top layer, a bottom layer, and a continuous space between them. The upper ends of the support legs converge at an apex, while the lower ends rest on a surface. Additionally, the fabric's top or bottom layer is coupled to a flexible rod, allowing for an independent umbrella to be positioned within the space between the fabric layers. This independent umbrella can be freely repositioned around the assembly, and the design may also include a fixed umbrella portion.
Another significant patent involves methods for the preparation of tris-aryl-o-hydroxyphenyl-s-triazines. This process outlines a three-step method for preparing 2-(2,4-dihydroxyphenyl)-4.6-diaryl-s-triazines, starting with cyanuric chloride. The first step involves the nucleophilic displacement of one chlorine atom with a phenolic moiety. The second step includes a Friedel-Crafts reaction using a Lewis acid catalyst, preferably aluminum chloride, to replace the remaining two chlorine atoms with aryl groups such as xylyl. The final step replaces the phenolic moiety with resorcinol using either a Lewis acid or protic acid catalyst. The s-triazines produced are valuable as UV absorbers, helping to stabilize organic substrates against the harmful effects of actinic light.
Career Highlights
Throughout his career, Tyler has worked with prominent companies such as Ciba-Geigy Corporation and Ciba Specialty Chemicals Corporation. His experience in these organizations has contributed to his development as an inventor and innovator.
Collaborations
Tyler has collaborated with notable individuals in his field, including Ramanathan Ravichandran and Mark S Holt. These partnerships have likely enriched his work and expanded his innovative capabilities.
Conclusion
Tyler A Stevenson exemplifies the spirit of innovation through his diverse patents