Patents by Inventor Kay Buntemeyer

Kay Buntemeyer 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).

  • Process for obtaining invertase from yeast
    Patent number: 5256556
    Abstract: Invertase is produced by a process wherein, first the yeast cells are disrupted to produce a disrupted cell suspension, second the disrupted cell suspension is adjusted to an acidic pH, third denatured undersired proteins are removed with the cell detritus and lastly the invertase is isolated. The improvement of the invention to the state of the art is that it comprises subjecting the disrupted cell suspension prior to removing the undesired proteins and cell detritus, to a pH of less than 4.5 and to a heat treatment in a continuous thermal denaturation system at a temperature in a range of from 44.degree. C. to about 51.degree. C.
    Type: Grant
    Filed: August 13, 1990
    Date of Patent: October 26, 1993
    Assignee: Gesellschaft fur Biotechnologische Forschung GmbH (GBF)
    Inventors: Helmut Hustedt, Kay Buntemeyer, Karl-Heinz Kroner, Bernhard Borner