This inventor holds 5 USPTO granted patents. Top assignees: Amoco Corporation, Standard Oil Company (Indiana). Active years: 1986-1989.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Naperville, IL (US) (1987)
- Glen Ellyn, IL (US) (1986 - 1989)
Company Filing History:
Years Active: 1986-1989
Title: April J Evans: Innovator in Chemical Engineering
Introduction
April J Evans is a notable inventor based in Naperville, IL (US). She has made significant contributions to the field of chemical engineering, particularly in the development of innovative catalysts and stabilization methods for natural substances. With a total of 5 patents to her name, Evans has established herself as a key figure in her industry.
Latest Patents
Among her latest patents is the invention titled "Pyrethrum stabilization by inactivation of natural acetylenic impurities." This patent describes a composition and method for obtaining an improved stable composition of naturally occurring pyrethroid substances. The method involves inactivating polyacetylenic substances through selective hydrogenation or extraction. Another significant patent is the "Catalyst for demetallation and desulfurization of heavy hydrocarbons." This invention discloses an improved catalyst suitable for use in an ebullated bed process for hydrodemetallation, hydrodesulfurization, and hydrocracking of heavy hydrocarbon feedstocks. The catalyst comprises a relatively small amount of cobalt, specifically 0.4 to 0.8 wt. %, incorporated with a high macropore volume Group VIB metal-containing catalyst.
Career Highlights
April J Evans has worked with prominent companies such as Amoco Corporation and Standard Oil Company (Indiana). Her experience in these organizations has contributed to her expertise and innovative capabilities in the field of chemical engineering.
Collaborations
Throughout her career, Evans has collaborated with notable professionals, including Albert L Hensley, Jr and William I Beaton. These collaborations have further enriched her work and expanded her impact in the industry.
Conclusion
April J Evans is a distinguished inventor whose work in chemical engineering has led to significant advancements in the stabilization of natural substances and the development of effective catalysts. Her contributions continue to influence the field and inspire future innovations.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile