This inventor holds 3 USPTO granted patents. Top assignees: Philip Morris Inc., Other. Active years: 1996-1998.
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 759 
2 out of 834,513 Years Active: 1996-1998
Title: Diane L Leister: Innovator in Tobacco Processing Technology
Introduction
Diane L Leister is a notable inventor based in Richmond, VA (US). She has made significant contributions to the field of tobacco processing, holding a total of 3 patents. Her innovative approaches have advanced the methods used in the industry, particularly in the impregnation and expansion of tobacco.
Latest Patents
One of Diane's latest patents is titled "Process and apparatus for impregnation and expansion of tobacco." This invention provides a method for expanding tobacco using carbon dioxide gas. The process involves adjusting the tobacco's temperature and OV content before it comes into contact with carbon dioxide gas. This method is particularly effective for impregnating and expanding tobacco with a high bulk density. To achieve this, the tobacco may be compacted or compressed to ensure a more uniform bulk density prior to impregnation. The invention allows for a short cycle impregnation process, following a thermodynamic path that enables a controlled amount of carbon dioxide gas to condense on the tobacco. The liquid carbon dioxide evaporates during depressurization, which helps to cool the tobacco bed uniformly. After the impregnation process, the tobacco can be expanded immediately or stored in a dry atmosphere for subsequent expansion.
Career Highlights
Throughout her career, Diane has worked with prominent companies, including Philip Morris Inc. Her work has been instrumental in developing new technologies that enhance tobacco processing methods.
Collaborations
Diane has collaborated with notable individuals in her field, including Thomas J Clarke and Walter Allen Nichols. These partnerships have contributed to her innovative work and the advancement of tobacco processing technologies.
Conclusion
Diane L Leister's contributions to tobacco processing technology through her patents and collaborations highlight her role as a significant innovator in the industry. Her work continues to influence the methods used in tobacco expansion and impregnation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile