This inventor holds 1 USPTO granted patent. Top assignee: Stauffer Chemical Company. Active years: 1988.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1988
Title: Lydia L Chang: Innovator in Insecticide Development
Introduction
Lydia L Chang is a notable inventor based in Orinda, California. She has made significant contributions to the field of insecticides, particularly through her innovative patent.
Latest Patents
Lydia holds a patent for S,S-di-(tertiary alkyl) thiophosphonate insecticides. This invention involves compounds that have the formula in which R is methyl or ethyl, Y is sulfur or oxygen, and R1 and R2 are the same or different tertiary alkyl groups, each having from 4 to 6 carbon atoms. These compounds serve as effective insecticides and nematicides, especially for controlling soil insects and nematodes. The symmetrical compounds can be prepared by reacting an alkali metal mercaptide with an alkyl (thio) phosphonic dihalide. The alkali metal mercaptide is synthesized by reacting a tertiary alkyl mercaptan with an alkali metal or alkali metal hydride.
Career Highlights
Lydia is associated with Stauffer Chemical Company, where she has been able to apply her expertise in chemical engineering and insecticide development. Her work has contributed to advancements in agricultural chemistry, particularly in pest control.
Collaborations
Lydia has collaborated with notable colleagues such as Charles G Chavdarian and Bruce C Onisko, enhancing her research and development efforts in the field.
Conclusion
Lydia L Chang's innovative work in the development of insecticides showcases her significant impact on agricultural science. Her contributions continue to influence pest control methods and improve agricultural productivity.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile