Patents by Inventor Alan R. Amundsen

Alan R. Amundsen 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).

  • Patent number: 6497851
    Abstract: An exhaust gas treatment apparatus and method for its use includes an upstream catalyst and a downstream catalyst. The upstream catalyst contains a catalytic metal effective at least for the oxidation of hydrocarbons in the exhaust gas stream, and preferably contains a palladium catalytic component and contains substantially no oxygen storage components, i.e., oxides of cerium, cobalt, iron, magnesium, molybdenum, nickel, praseodymium, tungsten and vanadium, but the downstream catalyst includes an oxygen storage component. Preferably, the upstream catalyst is a close-coupled catalyst. The downstream catalyst may be an underfloor catalyst or a close-coupled catalyst, in which case there is, preferably, an additional, underfloor catalyst.
    Type: Grant
    Filed: December 21, 1995
    Date of Patent: December 24, 2002
    Assignee: Englehard Corporation
    Inventors: Zhicheng Hu, Ronald M. Heck, Rudolf M. Smaling, Alan R. Amundsen
  • Patent number: 4921847
    Abstract: There is described a novel class of aminegold(III) complexes in which the nitrogen-containing ligand is an alkylamine, an arylamine or a heterocyclic amine. Said complexes are useful in the treatment of tumors in mammals.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: May 1, 1990
    Assignee: Engelhard Corporation
    Inventors: Alan R. Amundsen, Eric W. Stern
  • Patent number: 4839386
    Abstract: There are described ionic bis(dicarboxylato)palladate(II) products derived from aliphatic and aromatic dicarboxylic acids useful in the treatment of malignant animal tumors sensitive thereto. Certain of the compounds are novel.
    Type: Grant
    Filed: August 12, 1987
    Date of Patent: June 13, 1989
    Assignee: Engelhard Corporation
    Inventors: Alan R. Amundsen, Eric W. Stern
  • Patent number: 4786725
    Abstract: There are described platinum-polyhydroxylated amine compounds which exhibit anti-tumor activity in mammalian species. The products are highly soluble in aqueous solutions and they may be administered either orally or in parenteral form.
    Type: Grant
    Filed: March 3, 1986
    Date of Patent: November 22, 1988
    Assignee: Engelhard Corporation
    Inventors: Alan R. Amundsen, Eric W. Stern
  • Patent number: 4783482
    Abstract: There are described novel bis(thiocyanato)palladium(II) complexes containing bidentate amine ligands. These complexes exhibit an anti-tumor effect against malignant animal tumor cells sensitive thereto and are characterized by low mammalian toxicity.
    Type: Grant
    Filed: November 14, 1985
    Date of Patent: November 8, 1988
    Assignee: Engelhard Corporation
    Inventors: Alan R. Amundsen, Eric W. Stern
  • Patent number: 4578490
    Abstract: There are described ionic bis(dicarboxylato)palladate(II) products derived from aliphatic and aromatic dicarboxylic acids useful as anti-tumor agents in mammals. Certain of the compounds are novel.
    Type: Grant
    Filed: August 17, 1984
    Date of Patent: March 25, 1986
    Assignee: Engelhard Corporation
    Inventors: Alan R. Amundsen, Eric W. Stern
  • Patent number: 4578491
    Abstract: There are described novel bis(thiocyanato)palladium(II) complexes containing bidentate amine ligands. These complexes exhibit an anti-tumor effect and are characterized by low mammalian toxicity.
    Type: Grant
    Filed: August 20, 1984
    Date of Patent: March 25, 1986
    Assignee: Engelhard Corporation
    Inventors: Alan R. Amundsen, Eric W. Stern
  • Patent number: 4505928
    Abstract: A pharmaceutical composition having as the active ingredient a cis-platinum(II) amine lactate complex in which said amine is derived from ammonia or a monodentate or bidentrate amine ligand such as an alkylamine or alkylene diamine. Said compositions may be administered orally or parenterally and they exhibit pronounced activity against malignant animal tumor cells sensitive thereto.
    Type: Grant
    Filed: December 18, 1981
    Date of Patent: March 19, 1985
    Assignee: Engelhard Corporation
    Inventors: Alan R. Amundsen, Eric W. Stern
  • Patent number: 4500465
    Abstract: There are described platinum-polyhydroxylated amine compounds which exhibit anti-tumor activity in mammalian species. The products are highly soluble in aqueous solutions and they may be administered either orally or in parenteral form.
    Type: Grant
    Filed: June 28, 1982
    Date of Patent: February 19, 1985
    Assignee: Engelhard Corporation
    Inventors: Alan R. Amundsen, Eric W. Stern
  • Patent number: 4462998
    Abstract: A pharmaceutical composition in which the active ingredient is an ascorbate complex of platinum (II) coordinated to ammonia, a monodentate amine ligand or a bidentate amine ligand as, for example, an alkylamine, an alkylenediamine or a cycloalkylamine. Said compositions are useful in the treatment of malignant tumors in animals. They may be administered orally or parenterally and they exhibit high solubility in water and low toxicity.
    Type: Grant
    Filed: November 4, 1983
    Date of Patent: July 31, 1984
    Assignee: Engelhard Corporation
    Inventors: Alan R. Amundsen, Eric W. Stern
  • Patent number: 4457926
    Abstract: There are described ascorbate complexes of platinum(II) coordinated to ammonia, a monodentate amine ligand or a bidentate amine ligand as, for example, an alkylamine, an alkylenediamine or a cycloalkylamine. Said complexes are useful in the treatment of malignant tumors in animals and they are characterized by high solubility in water and low toxicity.
    Type: Grant
    Filed: December 18, 1981
    Date of Patent: July 3, 1984
    Assignee: Engelhard Corporation
    Inventors: Alan R. Amundsen, Eric W. Stern
  • Patent number: 4291027
    Abstract: Ethylenediamine platinum (II) and 1,2-diaminocyclohexane platinum (II) pyrophosphate complexes are prepared by reaction of the appropriate diaquo platinum (II) salt with a pyrophosphate salt. These complexes possess pronounced anti-tumor activity and low toxicity and thus have high therapeutic indices.
    Type: Grant
    Filed: December 26, 1979
    Date of Patent: September 22, 1981
    Assignee: Engelhard Minerals & Chemicals Corp.
    Inventors: James D. Hoeschel, Alan R. Amundsen
  • Patent number: 4291023
    Abstract: Cis-diammineplatinum (II) organophosphate complexes where the organophosphate moiety is a glycerophosphate or a monosaccharide phosphate moiety are prepared by reaction of cis-diaquodiammineplatinum (II) salts with alkali metal organophosphates. The resulting complexes possess pronounced anti-tumor activity and low toxicity; consequently, they have high therapeutic indices.
    Type: Grant
    Filed: December 26, 1979
    Date of Patent: September 22, 1981
    Assignee: Engelhard Minerals & Chemicals Corp.
    Inventors: James D. Hoeschele, Alan R. Amundsen
  • Patent number: 4271085
    Abstract: Cis-Platinum(II) amine lactate complexes are prepared by reaction of the appropriate platinum(II) amine chloride complex with silver lactate. These complexes possess pronounced anti-tumor activity and low toxicity and thus have high therapeutic indices. They are also highly soluble in water.
    Type: Grant
    Filed: June 20, 1979
    Date of Patent: June 2, 1981
    Assignee: Engelhard Minerals & Chemicals Corporation
    Inventors: Alan R. Amundsen, Eric W. Stern
  • Patent number: 4248840
    Abstract: Cis-diammineplatinum(II) orthophosphate complexes are prepared by reaction of diaquo-cis-diammineplatinum(II) salts with alkali metal orthophosphates. The resulting complexes possess pronounced anti-tumor activity in mice and low toxicity; consequently, they have high therapeutic indices.
    Type: Grant
    Filed: March 7, 1979
    Date of Patent: February 3, 1981
    Assignee: Engelhard Minerals and Chemicals Corporation
    Inventors: James D. Hoeschele, Alan R. Amundsen
  • Patent number: 4234499
    Abstract: Cis-diammineplatinum(II) organophosphate complexes where the organophosphate moiety is a glycerophosphate or a monosaccharide phosphate moiety are prepared by reaction of cis-diaquodiammineplatinum(II) salts with alkali metal organophosphates. The resulting complexes possess pronounced anti-tumor activity in mice and low toxicity; consequently, they have high therapeutic indices.
    Type: Grant
    Filed: March 7, 1979
    Date of Patent: November 18, 1980
    Assignee: Engelhard Minerals & Chemicals Corporation
    Inventors: James D. Hoeschele, Alan R. Amundsen
  • Patent number: 4234500
    Abstract: Ethylenediamine platinum(II) and 1,2-diaminocyclohexane platinum(II) pyrophosphate complexes are prepared by reaction of the appropriate diaquo platinum(II) salt with a pyrophosphate salt. These complexes possess pronounced anti-tumor activity and low toxicity and thus have high therapeutic indices.
    Type: Grant
    Filed: March 7, 1979
    Date of Patent: November 18, 1980
    Assignee: Engelhard Minerals & Chemicals Corporation
    Inventors: James D. Hoeschele, Alan R. Amundsen