Patents by Inventor Koritala P. Rao

Koritala P. Rao 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).

  • Sustained release compositions
    Patent number: 5096896
    Abstract: A non-crosslinked derivative formable by reacting at least one substituted or unsubstituted, saturated or unsaturated, mono-, di- or poly-carboxy, hydroxy or mercapto hydrocarbon with at least one cyclic unsaturated (thio)ether.
    Type: Grant
    Filed: January 10, 1989
    Date of Patent: March 17, 1992
    Assignee: National Research Development Corporation
    Inventors: Neil B. Graham, Robert E. Howells, David A. Wood, Koritala P. Rao
  • Compositions comprising encapsulated particles and their preparation
    Patent number: 4882166
    Abstract: A composition which comprises at least one solid or liquid particle comprising at least one active substance, the or a plurality of such particles being encapsulated by the in situ cationic (co)polymerization there on of at least on cationically polymerizable monomer or prepolymer.
    Type: Grant
    Filed: August 20, 1987
    Date of Patent: November 21, 1989
    Assignee: National Research Development Corporation
    Inventors: Neil B. Graham, Abdul Rashid, Koritala P. Rao