This inventor holds 21 USPTO granted patents and 5 published patent applications and 8 EPO patents. Top assignees: Exxonmobil Chemical Patents Inc., Exxonmobil Technology and Engineering Company. Active years: 2009-2026.
Company Filing History:
20 out of 3,336 
1 out of 437 Years Active: 2009-2026
Title: James Norris Coffey: Innovator in Polymer Chemistry
Introduction
James Norris Coffey is a notable inventor based in League City, TX, who holds an impressive portfolio of 19 patents. His significant contributions to the field of polymer chemistry are exemplified through his innovative works in elastomeric compositions and adhesive technologies.
Latest Patents
Coffey's latest patents include advancements in elastomeric propylene-alpha-olefin-diene terpolymer compositions. This invention outlines a propylene-α-olefin-diene (PEDM) terpolymer formulation containing 75 to 95 wt % propylene, 5 to 20 wt % α-olefin, and 0.5 to 5 wt % diene. The elastomeric composition can be enhanced with an ethylene-based copolymer and various additives, promoting versatility in application.
Another significant work involves high polymer load polyolefin adhesive compositions. This patent describes adhesive formulations comprising between 50 to 80 wt % of a polymer blend of different propylene-based polymers, with specific viscosity characteristics. The meticulous approach to the isotactic triad tacticity highlights the scientific rigor Coffey applies to his inventions, addressing contemporary adhesive performance needs.
Career Highlights
Coffey has built an impressive career at ExxonMobil Chemical Patents Inc., where he continues to drive innovation in polymer technologies. His understanding of material properties and application engineering has made him a key figure in advancing adhesive and thermoplastic materials.
Collaborations
Coffey collaborates with distinguished colleagues, including Jennifer J Austin and Wen Li, leveraging their collective expertise to push the boundaries of polymer research and development. This collaborative spirit enhances his inventions' impact and practicality in the chemical industry.
Conclusion
James Norris Coffey's contributions to innovation in polymer chemistry significantly influence modern adhesive and elastomeric applications. His tireless dedication to research and collaboration ensures that his work will continue to have a lasting impact on the industry.