Patents by Inventor Janet M. Overholt

Janet M. Overholt 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).

  • Cell wall lytic enzymes from bacillus pabuli
    Patent number: 5374545
    Abstract: A bacteriolytic enzyme complex is obtained from a bacterial culture of Bacillus pabuli strains, e.g. , isolates 350-2 (NRRL B-18446) and 391-1 (NRRL B-18447). This bacteriolytic enzyme complex is useful as an antibacterial agent against both Gram-positive and Gram-negative bacteria. The enzyme complex may be produced by cultivating the B. pabuli microorganisms in an aqueous medium containing cornsteep liquor, after which the lyric enzyme complex can be recovered from the fermentation broth.
    Type: Grant
    Filed: July 1, 1993
    Date of Patent: December 20, 1994
    Assignee: Novo Nordisk A/S
    Inventors: Chi-Li Liu, Janet M. Overholt
  • Enzyme complex hydrolyzing bacterial cell walls derived from nocardiopsis dassonvillei
    Patent number: 5354681
    Abstract: A bacteriolytic enzyme complex obtained from a bacterial culture of Nocardiopsis dassonvillei strains, e.g., isolates G102-3 (NRRL 18349), G119-6 (NRRL 18350), and D38-3 (NRRL 18364).The enzyme complex may be produced by cultivating the microorganism in an aqueous medium containing maltodextrin and soybean meal, after which the lytic enzyme complex may be recovered from the fermentation broth.This bacteriolytic enzyme complex is useful as a detergent additive.
    Type: Grant
    Filed: May 17, 1988
    Date of Patent: October 11, 1994
    Assignee: 501 Novo Industri A/S
    Inventors: Chi-Li Liu, Janet M. Overholt
  • Protease
    Patent number: 5312748
    Abstract: Novel alkaline serine proteases produced by Nocardiopsis sp. strains, for example by aerobic cultivation of strain 10R (NRRL-18262) and Nocardiopsis dassonvillei strain M58-1 (NRRL 18133), the proteases being characterized by a pH optimum of about 8, and by retention of at least 60% of maximum activity at pH 7-11 measured with casein as substrate.The proteases of the invention may be distinguished from the known protease of the Nocardiopsis strain ZIMET 43647 (of East German 2004328) and known Bacillus and fungal alkaline proteases. The Alkaline proteases of strains 10R and M58-1 may also be distinguished from each other.The protease preparations of this invention are useful detergent additives for cold water laundering.
    Type: Grant
    Filed: August 30, 1988
    Date of Patent: May 17, 1994
    Assignee: Novo Nordisk A/S
    Inventors: Chi-Li Liu, Carol M. Beck, Robert J. Strobel, Jr., Janet M. Overholt