This inventor holds 2 USPTO granted patents. Top assignees: The United States Department of Agriculture as Represented by the, Wisconsin Alumni Research Foundation. Active years: 1994-1996.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 1 
1 out of 4,243 
Years Active: 1994-1996
Title: The Innovative Contributions of Charles G Hill, Jr.
Introduction
Charles G Hill, Jr. is a notable inventor based in Madison, WI (US). He has made significant contributions to the field of materials science and chemical engineering, particularly through his innovative patents. With a total of 2 patents, Hill's work focuses on advanced methods and materials that enhance efficiency and effectiveness in various applications.
Latest Patents
One of Hill's latest patents is a gas phase fractionation method using porous ceramic membranes. This invention utilizes flaw-free porous ceramic membranes fabricated from metal sols, which are coated onto a porous support. These membranes are designed to have mean pore diameters of less than 40 .ANG., with optimal sizes between 5-20 .ANG., and most preferably around 15 .ANG. They demonstrate permeability at lower pressures than existing membranes, employing condensation of gases in small pores and non-Knudsen membrane transport mechanisms to enhance membrane permeability and permselectivity.
Another significant patent by Hill is a one-step method for the preparation of difurfuryl diamines. This synthetic procedure allows for the synthesis of diamino difurfuryl compounds through a low-temperature reaction that eliminates the need for additional steps to protect or deprotect amino functionalities. The patent highlights the importance of acid concentration, reaction temperature, and reaction time in achieving the desired results.
Career Highlights
Throughout his career, Charles G Hill, Jr. has worked with esteemed organizations such as the Wisconsin Alumni Research Foundation and the United States Department of Agriculture. His contributions to these institutions have furthered research and development in his areas of expertise.
Collaborations
Hill has collaborated with notable colleagues, including Reid A Peterson and Marc A Anderson. These partnerships have likely enriched his research and innovation efforts, leading to impactful advancements in his field.
Conclusion
Charles G Hill, Jr. stands out as an influential inventor whose work in gas phase fractionation and synthetic methods has made a significant impact. His patents reflect a commitment to innovation and excellence in materials science.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile