Patents by Inventor Walter O. Siegl

Walter O. Siegl 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).

  • Corrosion inhibiting aqueous, acidic compositions comprising metal-chelating O-hydroxybenzylamine compound
    Patent number: 4959103
    Abstract: This invention relates to an aqueous, acidic composition useful to deposit a corrosion inhibiting and adhesion promoting coating on a metal substrate and a method for doing same. The composition has a pH of between about 2 and about 6 and comprises water-soluble or water-dispersible metal-chelating O-hydroxybenzylamine compound, wherein the amine moiety contains pendant ethanol or propanol moiety.
    Type: Grant
    Filed: August 9, 1989
    Date of Patent: September 25, 1990
    Assignee: Ford Motor Company
    Inventors: Walter O. Siegl, Mohinder S. Chattha
  • Corrosion inhibiting aqueous, acidic compositions comprising metal-chelating o-hydroxybenzylamine compound
    Patent number: 4917729
    Abstract: This invention relates to an aqueous, acidic composition useful to deposit a corrosion inhibiting and adhesion promoting coating on a metal substrate and a method for doing same. The composition has a pH of between about 2 and about 6 and comprises water-soluble or water-dispersible metal-chelating o-hydroxybenzylamine compound, wherein the amine moiety contains pendant ethanol or propanol moiety.
    Type: Grant
    Filed: September 21, 1988
    Date of Patent: April 17, 1990
    Assignee: Ford Motor Company
    Inventors: Walter O. Siegl, Mohinder S. Chattha
  • Metal-chelating diphenolamine oligomers for corrosion inhibition of metal substrates
    Patent number: 4840667
    Abstract: This invention relates to an water-soluble or water-dispersible diphenolamine oligomeric metal-chelating compound, method for making same, aqueous composition comprising the compound useful to deposit a corrosion preventive and adhesion promoting coating on a metal substrate and a method for doing same. The composition has a pH of between about 2 and about 10.
    Type: Grant
    Filed: January 20, 1987
    Date of Patent: June 20, 1989
    Assignee: Ford Motor Company
    Inventors: Walter O. Siegl, Mohinder S. Chattha
  • Corrosion inhibiting aqueous compositions comprising metal-chelating diphenolamine compounds
    Patent number: 4830680
    Abstract: This invention relates to an aqueous composition useful to deposit a corrosion inhibiting and adhesion promoting coating on a corrodible metal substrate and a method for doing same. The composition has a pH of between about 2 and about 10 and comprises water-soluble or water-dispersible metal-chelating diphenolamine compounds.
    Type: Grant
    Filed: December 7, 1987
    Date of Patent: May 16, 1989
    Assignee: Ford Motor Company
    Inventors: Walter O. Siegl, Mohinder S. Chattha
  • Corrosion inhibiting aqueous, acidic compositions comprising metal-chelating o-hydroxybenzylamine compound
    Patent number: 4795505
    Abstract: This invention relates to an aqueous, acidic composition useful to deposit a corrosion inhibiting and adhesion promoting coating on a metal substrate and a method for doing same. The composition has a pH of between about 2 and about 6 and comprises water-soluble or water-dispersible metal-chelating o-hydroxybenzylamine compound, wherein the amine moiety contains pendant ethanol or propanol moiety.
    Type: Grant
    Filed: December 7, 1987
    Date of Patent: January 3, 1989
    Assignee: Ford Motor Company
    Inventors: Walter O. Siegl, Mohinder S. Chattha
  • Corrosion inhibiting aqueous, acidic compositions comprising metal-chelating omicron-hydroxybenzylamine compound
    Patent number: 4792355
    Abstract: This invention relates to an aqueous, acidic composition useful to deposit a corrosion inhibiting and adhesion promoting coating on a metal substrate and a method for doing same. The composition has a pH of between about 2 and about 6 and comprises water-soluble or water-dispersible metal-chelating o-hydroxybenzylamine compound, wherein the amine moiety contains pendant ethanol or propanol moiety.
    Type: Grant
    Filed: January 20, 1987
    Date of Patent: December 20, 1988
    Assignee: Ford Motor Company
    Inventors: Walter O. Siegl, Mohinder S. Chattha
  • Corrosion inhibiting aqueous compositions comprising metal-chelating diphenolamine compounds
    Patent number: 4790878
    Abstract: This invention relates to an aqueous composition useful to deposit a corrosion inhibiting and adhesion promoting coating on a corrodible metal substrate and a method for doing same. The composition has a pH of between about 2 and about 10 and comprises water-soluble or water-dispersible metal-chelating diphenolamine compounds.
    Type: Grant
    Filed: January 20, 1987
    Date of Patent: December 13, 1988
    Assignee: Ford Motor Company
    Inventors: Walter O. Siegl, Mohinder S. Chattha
  • Metal-chelating diphenolamine oligomers for corrosion inhibition of metal substrates
    Patent number: 4770727
    Abstract: This invention relates to a water-soluble or water-dispersible diphenolamine oligomeric metal-chelating compound, method for making same, aqueous composition comprising the compound useful to deposit a corrosion preventive and adhesion promoting coating on a metal substrate and a method for doing same. The composition has a pH of between about 2 and about 10.
    Type: Grant
    Filed: December 7, 1987
    Date of Patent: September 13, 1988
    Assignee: Ford Motor Company
    Inventors: Walter O. Siegl, Mohinder S. Chattha
  • Organometallic polymers (A)
    Patent number: 4145523
    Abstract: Organometallic polymers are made in liquid medium by contacting (A) bis-chelate ligands such as 1, 3, 5, 7-tetra (2-pyridylimino)-benzodipyrrole with (B) salts of divalent, hexacoordinate, transition metals such as nickel chloride. The organometallic polymers have high thermal stability and are suitable as colorants for organic materials including thermoplastic resins.
    Type: Grant
    Filed: May 4, 1977
    Date of Patent: March 20, 1979
    Assignee: Ford Motor Company
    Inventor: Walter O. Siegl
  • Metal chelating ligands
    Patent number: 4115397
    Abstract: Alkyl substitution at the pyridyl periphery of 1, 3, 5, 7-tetra (2-pyridylimino)-benzodipyrroles provides bis chelating ligands with unexpected increase in organic solubility. The bis-chelating ligands may be used to form organometallic polymers as well as being suitable as dyes and metal ion deactivators. The metal complexes of such bis-chelating ligands may also be used as dyes.
    Type: Grant
    Filed: June 9, 1977
    Date of Patent: September 19, 1978
    Assignee: Ford Motor Company
    Inventor: Walter O. Siegl