Patents Represented by Attorney, Agent or Law Firm Joseph A. Lipovsky
  • Patent number: 5256628
    Abstract: It has been discovered that AAL-toxin, a known host-specific phytotoxin produced by Alternaria alternate f. Sp. lycopersici, has a broad range as a pre-emergent or post-emergent bioherbicide. A method using AAL-toxin has been developed for controlling certain weeds, including duckweeds, jimsonweed, black nightshade, prickly sida, redroot pigweed and northern jointvetch. This phytotoxin can be used pure, as a cell-free filtrate, a crude filtrate, or a crude suspension of the culture.
    Type: Grant
    Filed: August 31, 1992
    Date of Patent: October 26, 1993
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Hamed K. Abbas, Clyde D. Boyette
  • Patent number: 5250305
    Abstract: This invention relates to methods for the large-scale enzymatic deamidation of foot proteins. Deamidating enzymes such as peptidoglutaminase are immobilized using a spiral membrane having a molecular weight cut-off, from about 3 to about 50 kd. The methods minimize loss of the enzymatic activity for subsequent reuse of the enzyme as well as increase deamidation product yield.
    Type: Grant
    Filed: June 27, 1990
    Date of Patent: October 5, 1993
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Jamel S. Hamada
  • Patent number: 5246842
    Abstract: A process for the production of 5,8,11,14,17 -eicosapentaenoic acid from filamentous fungi with lactose as a substrate. Preferred filamentous fungi include Pythium ultimum, Pythium debaryanum, Pythium sp, and Pythium irregulare, the preferred lactose source being whey.
    Type: Grant
    Filed: October 30, 1991
    Date of Patent: September 21, 1993
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Dennis J. O'Brien, Edgar E. Stinson, Eric W. Wessinger, George A. Somkuti
  • Patent number: 5246854
    Abstract: An attached growth biological reactor for the growth and harvesting of filamentous fungi. The reactor contains a rigid cylinder which is partially submerged and rotated in a biological medium containing nutrients for fungal growth and which as been inoculated with a filamentous fungal medium. The filamentous fungi attaches itself to and grows upon the cylinder wherein it is removed by use of a doctoring blade. The reactor can be operated in a continuous mode by continuously supplying oxygen and nutrients to the reactor.
    Type: Grant
    Filed: December 16, 1991
    Date of Patent: September 21, 1993
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Dennis J. O'Brien, Wolfgang K. Heiland
  • Patent number: 5242463
    Abstract: Anionically dyeable smooth-dry crosslinked cellulose is produced by modifying cellulose-containing material with the combination of a hydroxyalkylamine or a hydroxyalkyl quaternary ammonium salt, a methylolamide crosslinking agent and one or more reactively inert glycol ether swelling agents. The reaction is typically catalyzed with salts such as zinc nitrate or magnesium chloride used either alone or in conjunction with citric acid. Types of usable anionic dyes include acid, direct, and reactive dyes. The cellulose-containing material may be in the form of fibers, threads, linters, roving, fabrics, yarns, slivers and paper.
    Type: Grant
    Filed: March 6, 1991
    Date of Patent: September 7, 1993
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Eugene J. Blanchard, Robert M. Reinhardt
  • Patent number: 5209940
    Abstract: The present invention relates to stabilizing unmilled or partially milled brown rice by contact thereof with ethanol vapors. The present invention also encompasses products of said stabilizing including, stabilized unmilled or partially milled brown rice, and partially stabilized flour produced by grinding of said stabilized unmilled or partially milled brown rice.
    Type: Grant
    Filed: May 2, 1991
    Date of Patent: May 11, 1993
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Elaine T. Champagne, Robert J. Hron, Sr., George Abraham
  • Patent number: 5210077
    Abstract: Antibodies (polyclonal and monoclonal) having specificity for cytokinins having a glycosylated isoprenoid side chain are described. The antibodies simultaneously recognize a purine ring, an isoprenoid side chain, and a 4'-O-glycoside. The antibodies were elicited using a novel hapten, 9-(2-carboxyethyl) cytokinin-O-glycoside. Immunoassay methods for the determination of cytokinins having a glycosylated isoprenoid side chain which utilize the antibodies are also described.
    Type: Grant
    Filed: April 6, 1989
    Date of Patent: May 11, 1993
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: David L. Brandon, Joseph W. Corse
  • Patent number: 5206015
    Abstract: A method and apparatus for introducing probiotic bacteria into the digestive tract of a bird in order to exclude undesirable bacteria therefrom, and inoculated eggs produced thereby, are disclosed. In a preferred embodiment of the invention, a fertile bird egg is administered a Salmonella competitive exclusion culture. The culture is preferably administered into the air cell of the egg in an amount effective to colonize the digestive tract of the embryonic bird contained within the egg, and the culture preferably comprises at least one anaerobic bacteria of intestinal origin.
    Type: Grant
    Filed: June 5, 1989
    Date of Patent: April 27, 1993
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Nelson A. Cox, Joseph S. Bailey
  • 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
  • Patent number: 5171591
    Abstract: Parasitic bacteria of the genus Bdellovibrio are utilized to control or eliminate undesirable bacteria in or on: certain foods for human consumption; or a food contact surface(s) (i.e. the Bdellovibrio attack and kill undesirable bacteria indigenous to the food or food contact surface(s)). A wide variety of pathogenic (e.g. Salmonella, Vibrio, Shigella, Escherichia, Campylobacter and Yersinia), and food spoilage bacteria (e.g. Pseudomonas, Aeromonas and Enterobacteriaceae) may be controlled or eliminated by parasitization by the Bdellovibrio bacteria.
    Type: Grant
    Filed: May 2, 1991
    Date of Patent: December 15, 1992
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Richard C. Whiting
  • Patent number: 5171686
    Abstract: Methods and compositions are provided for the control or prevention of aflatoxin contamination of agricultural commodities. Non-toxigenic strains of Aspergillus flavus are shown to inhibit aflatoxin production by toxigenic strains. Additionally, the non-toxigenic strains produce a factor in culture that alone inhibits aflatoxin production by toxigenic strains.
    Type: Grant
    Filed: November 29, 1989
    Date of Patent: December 15, 1992
    Assignee: The United States of America as represented by the United States Department of Agriculture
    Inventor: Peter J. Cotty
  • Patent number: 5169666
    Abstract: The present invention is directed to the modification of bovine milk to simulate human milk protein composition which can be used in infant formulas. This is accomplished by low temperature ultrafiltration or microfiltration of bovine milk which has been pretreated at about 4.degree. C. for 4 or more hours for micellar dissociation of .beta.-casein, using either a 100,000 molecular weight (M.W.) cut-off or 0.1 .mu.M to 0.2 .mu.M membranes; permeates are obtained in which the .DELTA..sub.s -caseins are eliminated or substantially reduced; and preferably the .beta.-lactoglobulin is reduced to levels of 4% or less through pH adjustment and sodium chloride addition.
    Type: Grant
    Filed: November 14, 1991
    Date of Patent: December 8, 1992
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: John H. Woychik
  • Patent number: 5139530
    Abstract: Anionically dyeable smooth-dry crosslinked cellulosic materials are produced by treatment of methylolamide crosslinked cellulosic materials with an alkali swelling agent such as sodium hydroxide prior to dyeing. Attainable color strength is dependent upon both the concentration and the contact time of the alkali swelling agent with the cellulosic material. Types of usable anionic dyes include acid, direct, and reactive dyes. The cellulose-containing material may be in the form of fibers, threads, linters, roving, fabrics, yarns, slivers and paper.
    Type: Grant
    Filed: January 24, 1991
    Date of Patent: August 18, 1992
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Eugene J. Blanchard, Robert M. Reinhardt
  • Patent number: 5132220
    Abstract: A method has been found to select the most virulent biotypes from a wild-type entomopathogenic virus by selection of desirable characteristics after serial passages through in vivo and in vitro systems. Using this method, a strain of Lymantria dispar NPV virus was isolated which had increased biological activity and increased speed of kill.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: July 21, 1992
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Martin Shapiro, Dwight E. Lynn, Edward M. Dougherty
  • Patent number: 5082672
    Abstract: Deamidation of food proteins by Bacillus circulans peptidoglutaminase was impaired by the large molecular size and unique conformation of these proteins. The limited ability of peptidoglutaminase to deamidate food proteins was increased dramatically by protein hydrolysis and altering protein conformation, principally by moist heat. A method to prepare enzymatically deamidated food proteins with a wide range of protein deamidation was developed. Enzymatic deamidation of proteins improved their functional properties especially in the mild acidic pH region (e.g., 4-6).
    Type: Grant
    Filed: June 21, 1989
    Date of Patent: January 21, 1992
    Assignee: The United States of American as represented by the Secretary of Agriculture
    Inventors: Jamel S. Hamada, Wayne E. Marshall
  • 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