Patents by Inventor Rajasekar Vyasarayani Williams

Rajasekar Vyasarayani Williams has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Stable biocatalysts of penicillin acylase as gel aggregates and the process of manufacture thereof
    Patent number: 8753856
    Abstract: The present invention provides a stable and viable biocatalyst with high activity and operational stability and method of immobilization thereof. The immobilization process is based on the principle of entrapment of partially purified enzyme precipitate which is simultaneously aggregated by cross linking agent like glutaraldehyde and further entrapped in a combination of natural polymer like gelatin and synthetic polymer like polyvinyl alcohol with effective gelation under mild conditions of temperature and pH, resulting in a stable biocatalyst. The enzymes immobilized by the above process include Penicillin acylase from rE. coli RE III (pKA18), Novel Penicillin acylase from Achromobacter sp (CCM4834) expressed in rE. coli BL21 (pK1P1) CCM 7394 and rE. coli RE III (pKX1P1).
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: June 17, 2014
    Assignee: Fermenta Biotech Ltd.
    Inventors: Anupama Datla, Rajasekar Vyasarayani Williams, Trupti Krishnakant Ashar, Pavel Kyslik, Stanislav Becka