Location History:
- Pittsfield, MA (US) (1987 - 1991)
- Mount Vernon, IN (US) (2001)
- Mt. Vernon, IN (US) (2003 - 2015)
- Barrington, RI (US) (1982 - 2019)
Company Filing History:
9 out of 51,907 
4 out of 608 
3 out of 35 
Years Active: 1982-2019
Title: **Celebrating the Innovations of Norman Enoch Johnson**
Introduction
Norman Enoch Johnson is a prominent inventor based in Mount Vernon, Indiana. With a remarkable portfolio of 18 patents, Johnson has made significant contributions to the field of polymer chemistry and materials science. His innovative methodologies and processes are notably influential in developing high-performance polymers.
Latest Patents
Johnson's latest patents exemplify his inventive prowess and technical expertise. One of his significant patents is a method for isolation of a dianhydride and dianhydrides prepared by this method. This invention involves a process for producing an aromatic dianhydride through the reaction of an aromatic diimide with a substituted or unsubstituted phthalic anhydride in an aqueous medium, utilizing an amine exchange catalyst. The process outlines extracting phthalimide from the reaction mixture and converting aromatic tetraacid salts to the corresponding aromatic dianhydrides.
Moreover, Johnson has also patented an optimized emulsion drying process for creating micronized polyetherimide polymers. This innovative process yields ultra-fine particles of high-performance polymers with efficiency exceeding 90%. It includes comprehensive steps, such as dissolving the polymer in an organic solvent, emulsifying the solution, and recovering particles of less than 75 microns in diameter.
Career Highlights
Throughout his career, Johnson has worked with renowned organizations, including General Electric Company and Sabic Innovative Plastics IP B.V. His experience in these prominent companies has played a crucial role in advancing his research and development skills, leading to the creation of groundbreaking technologies.
Collaborations
Johnson's career has been enriched through collaboration with fellow professionals, including David Winfield Woodruff and Thomas Link Guggenheim. These partnerships have allowed for the sharing of ideas and expertise, which have further propelled the progress of his innovative work.
Conclusion
Norman Enoch Johnson stands as an exemplary figure in the realm of invention and innovation. With his extensive patent portfolio and commitment to advancing polymer science, he continues to inspire future inventors and contribute to technological advancements in his field. His work not only demonstrates individual ingenuity but also highlights the importance of collaboration and skill-sharing in the innovation landscape.