This inventor holds 2 USPTO granted patents. Top assignees: W. R. Grace Co., Dearborn Chemical Company Ltd.. Active years: 1981-1984.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
2 out of 853 
1 out of 18 Years Active: 1981-1984
Title: Anita O Sy: Innovator in Chemical Engineering
Introduction
Anita O Sy is a notable inventor based in Columbia, MD (US). She has made significant contributions to the field of chemical engineering, particularly in the development of advanced dispersants and innovative methods for chemical reactions. With a total of 2 patents, her work has had a meaningful impact on various industrial applications.
Latest Patents
Anita's latest patents include a high-temperature dispersant designed for water-based bentonite clay drilling fluids. This invention focuses on improved dispersants that incorporate a water loss controller and a weighting agent. The dispersant can be a polyacrylic acid with a molecular weight ranging from about 700 to about 50,000, preferably between 4,000 and 8,000. Additionally, it can be used in combination with a sulfonated polystyrene-maleic anhydride copolymer, allowing for effective use at temperatures from about 70°F up to 500°F. Another significant patent involves the conversion of amides to isocyanates via phase transfer catalysis. This method utilizes a modified Hofmann reaction within a two-phase aqueous/organic system, producing organic isocyanates instead of amines. Notably, the reaction can proceed without a phase transfer catalyst for tertiary amides.
Career Highlights
Throughout her career, Anita has worked with prominent companies such as W. R. Grace & Co. and Dearborn Chemical Company Ltd. Her experience in these organizations has allowed her to refine her expertise and contribute to various innovative projects.
Collaborations
Anita has collaborated with talented individuals in her field, including Dionisio G Cuisia and Joseph W Raksis. These partnerships have fostered a creative environment that has led to the development of her impactful inventions.
Conclusion
Anita O Sy stands out as a pioneering inventor in chemical engineering, with her patents reflecting her commitment to innovation and excellence. Her contributions continue to influence the industry and inspire future advancements.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile