Patents by Inventor Donald R. Berdahl

Donald R. Berdahl 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).

  • Publication number: 20120216321
    Abstract: The present invention is concerned with Capsicum plants producing greater than about 0.4% zeaxanthin, by weight in the dried, ripe fruit pod flesh, which plants have been developed from commercially grown Capsicum cultivars by plant breeding techniques. Zeaxanthin is the dominant carotenoid in the dried ripe fruit pod flesh, when measured in non-esterified forms. Alternatively, these plants may be characterized as exhibiting a high pigmentation measured as an ASTA value and further characterized by the predominant presence of zeaxanthin. The zeaxanthin derived from these Capsicum plants can be used in applications that include nutritional supplements, foods, functional foods, cosmetics, animal feeds, aquaculture feeds, and pharmaceuticals.
    Type: Application
    Filed: April 30, 2012
    Publication date: August 23, 2012
    Applicant: KALAMAZOO HOLDINGS, INC.
    Inventors: Paul H. Todd, Carrie K. Young, Carol L. Locey, James P. Barren, Anthony P. Vandenhombergh, Donald R. Berdahl, Jeffrey S. Kanel
  • Patent number: 7550162
    Abstract: Compositions comprising a Labiatae herb extract and a hop extract containing beta acids and methods of using them to extend the color life and retard the growth of microorganisms in fresh meat, fish and poultry stored in an atmosphere that contains 20% or more oxygen.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: June 23, 2009
    Assignee: Kalsec Incorporated
    Inventors: Donald R. Berdahl, Gregory S. Reynhout, Mark H. Schulze
  • Publication number: 20040131709
    Abstract: Compositions comprising a Labiatae herb extract and a hop extract containing beta acids and methods of using them to extend the color life and retard the growth of microorganisms in fresh meat, fish and poultry stored in an atmosphere that contains 20% or more oxygen.
    Type: Application
    Filed: February 13, 2004
    Publication date: July 8, 2004
    Inventors: Donald R Berdahl, Gregory S Reynhout, Mark H Schulze
  • Patent number: 5580741
    Abstract: A sensitive chemiluminescence immunoassay method for field detection of the presence or the amount of low chlorinated biphenyl compounds in a solution is disclosed. The assay has a five minute analysis time and a working range of detection as low as about 1 part per billion chlorinated biphenyl. Kits for the detection of chlorinated biphenyls are disclosed.
    Type: Grant
    Filed: June 29, 1994
    Date of Patent: December 3, 1996
    Assignee: General Electric Company
    Inventors: John Y. Gui, Donald R. Berdahl, Emily Y. Shu, Joseph J. Salvo, Sandra F. Feldman
  • Patent number: 5106938
    Abstract: Polyetherimide resins which crystallize from the melt contain crystallizing repeating units based on biphenoldianhydride or hydroquinone dianhydride and a linear aromatic diamine. The melt crystalline polyetherimides exhibit improved solvent resistance. The melt crystalline polymers retain the advantageous properties associated with their known amorphous polyetherimide counterparts.
    Type: Grant
    Filed: June 8, 1989
    Date of Patent: April 21, 1992
    Assignee: General Electric Company
    Inventors: Dana C. Bookbinder, Edward N. Peters, Donald R. Berdahl, Pamela A. Matsch
  • Patent number: 4933469
    Abstract: A method is provided for preparing oxybisphthalimides by heating a nitrophthalimide compound in the presence of an alkali metal carboxylate, a phase transfer catalyst and a nonpolar organic solvent.
    Type: Grant
    Filed: December 16, 1988
    Date of Patent: June 12, 1990
    Assignee: General Electric Company
    Inventors: Donald R. Berdahl, Pamela A. Matsch, Susan A. Nye
  • Patent number: 4874835
    Abstract: Polyetherimide precursor compositions are prepared by a reacting mixture of at least two diamines selected from the group consisting of o-phenylenediamine, m-phenylenediamine and 4-aminophenyl ether with the esterification product of a low molecular weight alkanol such as methanol and an ether tetracarboxylic acid dianhydride, preferably 3,4-dicarboxyphenyl ether dianhydride. Said polyimide precursor compositions may be converted to polyimides useful in composite formation, by gently heating to remove excess alkanol and subsequently baking at temperatures in the range of about 275.degree.-375.degree. C.
    Type: Grant
    Filed: July 15, 1988
    Date of Patent: October 17, 1989
    Assignee: General Electric Company
    Inventor: Donald R. Berdahl
  • Patent number: 4855391
    Abstract: Polyetherimides are prepared from at least two diamines selected from the group consisting of o-phenylenediamine, m-phenylenediamine and 4-aminophenyl ether and a dicarboxyphenyl ether anhydride, or the esterification product thereof with a low molecular weight alkanol such as methanol. 3,4-Dicarboxyphenyl ether dianhydride is preferred. Said polyimides are tough, flexible and stable at high temperatures.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: August 8, 1989
    Assignee: General Electric Company
    Inventors: Donald R. Berdahl, James A. Cella, Gary K. Shank
  • Patent number: 4808731
    Abstract: Oxydiphthalic anhydride is prepared by effecting contact between a substituted phthalic anhydride such as 4-nitro or 4-fluoro phthalic anhydride and a dialkylaminopyridine in the presence of a refluxing nonpolar organic solvent.
    Type: Grant
    Filed: March 4, 1988
    Date of Patent: February 28, 1989
    Assignee: General Electric Company
    Inventors: Donald R. Berdahl, Pamela A. Matsch
  • Patent number: 4794157
    Abstract: The intercondensation of aryldiamine and a mixture of oxydiphthalic anhydride and aromatic bis(ether anhydride), such as 2,2-bis[4-(3,4-dicarboxyphenoxy)phenyl]-propane dianhydride, have been found to provide tough flexible transparent copolymer having T.sub.g 's from about 217.degree. C. to 300.degree. C.
    Type: Grant
    Filed: March 25, 1987
    Date of Patent: December 27, 1988
    Assignee: General Electric Company
    Inventors: Donald R. Berdahl, Susan A. Nye
  • Patent number: 4780544
    Abstract: A method is provided for making oxybisphthalimides by heating an N-organonitrophthalimide in the presence of an aprotic organic solvent in an alkali metal carboxylate.
    Type: Grant
    Filed: July 2, 1986
    Date of Patent: October 25, 1988
    Assignee: General Electric Company
    Inventor: Donald R. Berdahl
  • Patent number: 4746720
    Abstract: Solvent resistant polyimides are provided having improved T.sub.g by effecting reaction between aromatic bis(anhydride), such as aromatic bis(etheranhydride), and benzofuran amine such as 2-(4-aminophenyl)-5-benzofuranamine.
    Type: Grant
    Filed: October 20, 1986
    Date of Patent: May 24, 1988
    Assignee: General Electric Company
    Inventor: Donald R. Berdahl
  • Patent number: 4668739
    Abstract: UV stabilized polyphenylene ether polymers and blends thereof are provided by this invention. This is accomplished by bonding UV absorbers directly to the polyphenylene ether chain or by polymerizing monomers to which the UV absorbers are bound.
    Type: Grant
    Filed: December 23, 1985
    Date of Patent: May 26, 1987
    Assignee: General Electric Company
    Inventors: Donald R. Berdahl, Susan A. Nye, Gary W. Yeager
  • Patent number: 4665112
    Abstract: Polyphenylene ether resins can be stabilized against the adverse influence of ultraviolet light by incorporating into the resin an effective amount of a benzofuran UV absorber.
    Type: Grant
    Filed: January 2, 1986
    Date of Patent: May 12, 1987
    Assignee: General Electric Company
    Inventor: Donald R. Berdahl