Patents by Inventor Keith Gibson

Keith Gibson 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).

  • Liquid proteinase concentrate and method for preparation
    Patent number: 4497897
    Abstract: A storage stable liquid enzyme concentrate of Subtilisin Carlsberg containing 0.5-6.5 Anson Units of proteinase per gram of concentrate and method for preparing same. Solid form proteinase is extracted with 70-100 parts by volume propylene glycol, 30-0 parts by volume of water, then adjusted as necessary to 60-85% by wt. of the glycol. Stabilizing agents in the concentrate are 0.1-1 mol/kg. of one or more C.sub.1 -C.sub.3 carboxylate, formate being preferred, and a calcium ion content of 0.04-0.5% by wt., pH range is 5-8.
    Type: Grant
    Filed: December 9, 1982
    Date of Patent: February 5, 1985
    Assignee: Novo Industri A/S
    Inventors: Jens H. Eilertsen, Arne D. Fog, Keith Gibson
  • Protease product of reduced allergenicity
    Patent number: 4266031
    Abstract: A novel protease product suitable for admixture to washing compositions and exhibiting substantially attenuated allergenic properties is prepared by cultivating strains of Bacillus licheniformis which have been mutated to block their synthesis of protease other than Subtilopeptidase A (subtilisin). The commercial Bacillus licheniformis derived protease products are mixtures of subtilisin and a non-serine protease of lower stability and greater allergenicity than subtilisin.
    Type: Grant
    Filed: July 3, 1979
    Date of Patent: May 5, 1981
    Assignee: Novo Industri A/S
    Inventors: Peter Tang, Grethe C. Nielsen, Keith Gibson, Knud Aunstrup, Hans Schiff
  • Iron containing cell mass glucose isomerase preparation
    Patent number: 4152211
    Abstract: Iron activation of cell mass of glucose isomerase preparations carried out by direct incorporation of 0.05-2.0% w/w dry basis of iron as a solid water soluble non-toxic iron salt.Preferred compositions are dry state particulate glucose isomerases containing 0.05-2.0% iron, 0.5-3.0% magnesium oxide, and 2-15% dextrose monohydrate all w/w.
    Type: Grant
    Filed: August 23, 1977
    Date of Patent: May 1, 1979
    Assignee: Novo Industri A/S
    Inventors: Tage K. Nielsen, William Carasik, Lena E. Zittan, Keith Gibson