This inventor holds 2 USPTO granted patents. Top assignees: Eastman Chemical Company, Eastman-Kodak Company. Active years: 1984-1998.
Company Filing History:
Years Active: 1984-1998
Title: Griffin Ivan Johnson: Innovator in Cellulose and Terephthalic Acid Processing
Introduction
Griffin Ivan Johnson is a notable inventor based in Kingsport, TN (US). He has made significant contributions to the fields of cellulose processing and terephthalic acid purification. With a total of 2 patents, his work has implications for various industrial applications.
Latest Patents
Johnson's latest patents include a method for incorporating cellulose esters into cellulose and a process for the purification of terephthalic acid. The first patent describes a method for treating cellulose with cellulose ester, which involves reacting cellulose and an acid anhydride to create a cellulose ester-carboxylic acid solution. This innovative approach allows for the production of treated fibers that can be utilized in paper making for circuit boards and laminated products. The second patent outlines an improved process for purifying crude terephthalic acid produced from para-xylene oxidation. This process employs a novel catalyst system and specific conditions to enhance the purification efficiency.
Career Highlights
Throughout his career, Johnson has worked with prominent companies such as Eastman Kodak Company and Eastman Chemical Company. His experience in these organizations has contributed to his expertise in chemical processes and innovations.
Collaborations
Johnson has collaborated with various professionals in his field, including Judy E. Kiefer, enhancing the scope and impact of his inventions.
Conclusion
Griffin Ivan Johnson's contributions to cellulose and terephthalic acid processing demonstrate his innovative spirit and commitment to advancing industrial applications. His patents reflect a deep understanding of chemical processes that can lead to significant improvements in manufacturing.