This inventor holds 3 USPTO granted patents and 3 published patent applications and 2 EPO patents. Top assignees: Huntsman Petrochemical Corporation, Shell Oil Comapny. Active years: 1999-2021.
Company Filing History:
Years Active: 1999-2021
Title: James Edward Critchfield: Innovator in Gas Absorption Technologies
Introduction
James Edward Critchfield is a notable inventor based in Austin, TX (US). He has made significant contributions to the field of gas absorption technologies, holding a total of 3 patents. His work focuses on improving the efficiency and effectiveness of processes that involve the absorption of gases.
Latest Patents
Critchfield's latest patents include an innovative absorbent composition designed for the selective absorption of hydrogen sulfide. This composition is particularly useful in separating hydrogen sulfide from carbon dioxide in gaseous mixtures. The formulation includes an amine mixture derived from the amination reaction of tert-butylamine with a polydispersed polyethylene glycol (PEG) mixture. Additionally, the composition may contain sterically hindered amines and an organic co-solvent, such as a sulfone compound. Another significant patent addresses a method to decrease decomposition products in solutions that absorb acidic gases, enhancing the reuse of amine solvent solutions and reducing corrosion in amine treating systems.
Career Highlights
Throughout his career, Critchfield has worked with prominent companies in the petrochemical industry, including Huntsman Petrochemical Corporation and Shell Oil Company. His experience in these organizations has contributed to his expertise in gas absorption technologies and the development of innovative solutions.
Collaborations
Critchfield has collaborated with notable professionals in his field, including Patrick E. Holub and Wei-Yang Su. These collaborations have further enriched his work and contributed to advancements in gas absorption technologies.
Conclusion
James Edward Critchfield is a distinguished inventor whose work in gas absorption technologies has led to significant advancements in the field. His innovative patents and collaborations reflect his commitment to improving industrial processes.

