Patents by Inventor Jeffrey D. Lorch

Jeffrey D. Lorch 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).

  • Trichoderma longibrachiatum EGIII cellulase
    Patent number: 5753484
    Abstract: The present invention is directed to purified EG III cellulase enzyme isolated from Trichoderma longibrachiatum and the amino acid sequence of the secreted (mature) and non-secreted (preprotein) forms. The present invention is further directed to the DNA fragment and sequence that encodes the EG III cellulase enzyme. Also disclosed are methods for isolating either purified or highly enriched EG III cellulase obtained from Trichoderma spp. or genetically modified strains of Trichoderma spp.
    Type: Grant
    Filed: May 10, 1995
    Date of Patent: May 19, 1998
    Assignee: Genencor International, Inc.
    Inventors: Michael Ward, Kathleen A. Clarkson, Edmund A. Larenas, Jeffrey D. Lorch, Geoffrey L. Weiss
  • DNA sequence encoding endoglucanase III cellulase
    Patent number: 5475101
    Abstract: The present invention is directed to purified EG III cellulase enzyme isolated from Trichoderma longibrachiatum and the amino acid sequence of the secreted (mature) and non-secreted (preprotein) forms. The present invention is further directed to the DNA fragment and sequence that encodes the EG III cellulase enzyme. Also disclosed are methods for isolating either purified or highly enriched EG III cellulase obtained from Trichoderma spp. or genetically modified strains of Trichoderma spp.
    Type: Grant
    Filed: March 17, 1993
    Date of Patent: December 12, 1995
    Assignee: Genencor International, Inc.
    Inventors: Michael Ward, Kathleen A. Clarkson, Edmund A. Larenas, Jeffrey D. Lorch, Geoffrey L. Weiss
  • Process of treating water containing effluent from cheese-making operations
    Patent number: 5338553
    Abstract: A process for treating waste water produced in a cheesemaking operation. The process comprises treating a milk product so as to form a curd, subjecting the curd to an elevated temperature while in contact with water and separating the curd from a water-containing material including milk fats. The process further includes subjecting the water-containing material to microfiltration in a microfilter so as to produce a concentrate rich in the milk fats and a permeate, and recovering the concentrate and the permeate.
    Type: Grant
    Filed: September 15, 1992
    Date of Patent: August 16, 1994
    Assignee: Niro, A/S
    Inventors: David A. Johnson, Jeffrey D. Lorch
  • Methods for isolating EG III cellulase component and EG III cellulase in polyethylene glycol using inorganic salt and polyethylene glycol
    Patent number: 5328841
    Abstract: Methods for isolating EG III cellulase component and enriched EG III cellulase in polyethylene glycol are disclosed. The methods comprise adding an inorganic salt and polyethylene glycol having a molecular weight of from about 5,000 to 10,000 to an aqueous mixture of cellulase proteins under conditions to create a two-phase system. Next, the cellulase proteins other than EG III are separated in an EG III-poor aqueous phase while EG III cellulase component is retained in an EG III-rich polyethylene glycol phase. Lastly, the EG III component can be separated from the polyethylene glycol. The preferred method of separation is alcohol precipitation.
    Type: Grant
    Filed: April 3, 1992
    Date of Patent: July 12, 1994
    Assignee: Genencor International, Inc.
    Inventors: Jeffrey D. Lorch, Kathleen A. Clarkson, Edmund Larenas, Benjamin S. Bower, Geoffrey L. Weiss
  • Processes for the recovery of naturally produced chymosin
    Patent number: 5151358
    Abstract: Disclosed are methods for the recovery and purification of naturally produced chymosin. In particular, disclosed are methods for the recovery and purification of chymosin from aqueous solutions containing chymosin, pepsin and other contaminants.
    Type: Grant
    Filed: June 13, 1990
    Date of Patent: September 29, 1992
    Assignee: Genencor International, Inc.
    Inventors: Henry G. Heinsohn, Jeffrey D. Lorch, Kirk J. Hayenga, Raymond E. Arnold
  • Processes for the recovery of microbially produced chymosin
    Patent number: 5139943
    Abstract: Disclosed are methods for the recovery of microbially produced chymosin. In particular, disclosed are methods for the recovery of chymosin from the fermentation beer arising from culturing microorganisms which have been engineered so as to produce chymosin. Also disclosed are methods for the selective recovery and subsequent purification of microbially produced chymosin.
    Type: Grant
    Filed: June 13, 1990
    Date of Patent: August 18, 1992
    Assignee: Genencor International, Inc.
    Inventors: Henry G. Heinsohn, Jeffrey D. Lorch, Kirk J. Hayenga, Raymond E. Arnold