Patents by Inventor Boen Tie Khouw

Boen Tie Khouw 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).

  • Purification of deoxyribonuclease
    Patent number: 4065355
    Abstract: Highly purified deoxyribonuclease is obtained by a simple process which comprises adsorption of deoxyribonuclease from a crude or partially purified solution of the enzyme on a column of concanavalin A-agarose, followed by elution of the adsorbed deoxyribonuclease with a carbohydrate solution and recovery of the deoxyribonuclease in solid form from such solution.
    Type: Grant
    Filed: October 8, 1976
    Date of Patent: December 27, 1977
    Assignee: Canada Packers Limited
    Inventors: Boen Tie Khouw, Johan Peter Kesler
  • Bovine immunoglobulin isolation process
    Patent number: 3984539
    Abstract: A bovine immunoglobulin fraction for administration to calves to combat scours is prepared from bovine plasma or clear bovine serum by a process of salt fractionation of crude immunoglobulins and redissolving them in aqueous solution, heating the solution to 50.degree.-60.degree.C, cooling and removing coagulated proteins, precipitating out the immunoglobulins by salt fractionation, separating and redissolving the precipitate in aqueous solution, purifying the solution by subjection to a molecular sieve procedure, and sterile filtering.
    Type: Grant
    Filed: December 2, 1974
    Date of Patent: October 5, 1976
    Inventors: Boen Tie Khouw, Michael Charles Attwell