This inventor holds 2 USPTO granted patents. Top assignees: Bioright Worldwide Company Limited, Other. Active years: 2009-2011.
Company Filing History:
1 out of 7 
1 out of 834,411 Years Active: 2009-2011
Title: Waikei Tsang: Innovator in Enzyme Methods
Introduction
Waikei Tsang is a notable inventor based in Hong Kong, CN. He has made significant contributions to the field of biochemistry, particularly in the development of enzyme methods for pharmaceutical applications. With a total of 2 patents, his work has the potential to impact the production of important antibiotics.
Latest Patents
Tsang's latest patents include a two-step enzyme method for preparing 7-aminocephalosporanic acid. This innovative method utilizes a purified D-amino acid oxidase mutant of yeast, which exhibits a specific activity that is 105% higher than that of the parent D-amino acid oxidase. Notably, this method eliminates the need for hydrogen peroxide, β-lactamase inhibitors, and catalase, which are commonly used in prior art. The productivity of this method can exceed 93%, making it a simple, cost-effective, and highly productive solution. Additionally, he has developed recombinant D-amino acid oxidases that convert cephalosporin C to glutaryl-7-aminocephalosporanic acid with activities at least 25% higher than that of wild-type D-amino acid oxidase.
Career Highlights
Throughout his career, Waikei Tsang has worked with various companies, including Bioright Worldwide Company Limited. His expertise in enzyme technology has positioned him as a valuable asset in the biopharmaceutical industry.
Collaborations
Tsang has collaborated with notable colleagues such as Hongkin Yap and Jun Wang, contributing to advancements in enzyme research and development.
Conclusion
Waikei Tsang's innovative work in enzyme methods showcases his dedication to improving pharmaceutical production processes. His patents reflect a commitment to enhancing efficiency and productivity in the field.