Patents by Inventor Dennis H. Steinberg

Dennis H. Steinberg 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).

  • Lactose hydrolysis by mutant Streptococcus thermophilus
    Patent number: 5198351
    Abstract: Mutant strains of Streptococcus thermophilus having defective lactose transport systems having a phenotype, sucS.sup.+ and gluS.sup.-, lacS.sup.- .beta.gal.sup.+ are effective for use in processes where the hydrolysis of lactose is sought. Thermostability of these strains as well as the .beta.-galactosidase produced allows lactose hydrolysis prior to and during pasteurization. These organisms provide the food industry with improved methods of making reduced lactose dairy products.
    Type: Grant
    Filed: September 12, 1991
    Date of Patent: March 30, 1993
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: George A. Somkuti, Dennis H. Steinberg
  • Lactose hydrolysis by mutant streptococcus thermophilus
    Patent number: 5071763
    Abstract: Mutant strains of Streptococcus thermophilus having defective lactose transport systems having a phenotype gluS.sup.31, lacS.sup.-, sucS.sup.+ and .beta.gal.sup.+ are effective for use in processes where the hydrolysis of lactose is sought. Thermostability of these strains as well as the .beta.-galactosidase produced allows lactose hydrolysis prior to and during pasteurization. These organisms provide the food industry with improved methods of making reduced lactose dairy products.
    Type: Grant
    Filed: April 23, 1990
    Date of Patent: December 10, 1991
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: George A. Somkuti, Dennis H. Steinberg