Company Filing History:
9 out of 428 
Years Active: 1976-1981
Title: Bruce A. Graham: Innovator in Plant Growth Regulants
Introduction
Bruce A. Graham is a notable inventor based in Guelph, Canada. He has made significant contributions to the field of chemistry, particularly in the development of plant growth regulants. With a total of five patents to his name, Graham's work has had a meaningful impact on agricultural practices.
Latest Patents
One of Graham's latest patents is for the process of preparing 2,3-dihydro-5,6-diphenyl-1,4-oxathiin. This compound is synthesized by reacting benzoin and 2-mercaptoethanol in an alkanol solvent containing 2 to 8 carbon atoms, along with an acidic catalyst. The use of an alcohol solvent instead of aromatic solvents results in much greater purity and improved yields. Another significant patent involves substituted 2,3-dihydro-1,4-oxathiin plant growth regulants. These compounds exhibit useful plant growth regulant effects, including herbicidal properties. Examples include 2,3-dihydro-5,6-diphenyl-1,4-oxathiin and 2,3-dihydro-5-(4-methylphenyl)-6-phenyl-1,4-oxathiin 4-oxide. These compounds are beneficial for the selective control of grasses, serve as dwarfing agents, inhibit vegetative and reproductive axillary growth, and increase the sugar content of sugar-producing species.
Career Highlights
Graham has built a successful career at Uniroyal Inc., where he has focused on innovative solutions in the agricultural sector. His expertise in chemistry and dedication to research have led to the development of new compounds that enhance plant growth and productivity.
Collaborations
Throughout his career, Graham has collaborated with notable colleagues, including Michael A. Puttock and Ethel Ellen Felauer. These partnerships have contributed to the advancement of research and the successful development of new agricultural products.
Conclusion
Bruce A. Graham is a distinguished inventor whose work in plant growth regulants has made a significant impact on agriculture. His innovative patents and collaborations reflect his commitment to enhancing agricultural practices through scientific research.