Patents by Inventor William P. Kurtenbach

William P. Kurtenbach 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).

  • Lustrous interference pigments with black absorption color
    Patent number: 6361593
    Abstract: A lustrous interference pigment with a black absorption color is obtained by forming a mica coated with hydrous titanium, iron and cobalt or chromium oxides, calcining the coated mica and then coating the resulting product with hydrous titanium and/or iron oxides and calcining the resulting product.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: March 26, 2002
    Assignee: Engelhard Corporation
    Inventors: Carmine Vincent DeLuca, Jr., William P. Kurtenbach, Christine Mans
  • Lustrous interference pigments with black absorption color
    Patent number: 6290766
    Abstract: A lustrous interference pigment with a black absorption color is obtained by forming a mica coated with hydrous titanium, iron and cobalt or chromium oxides, calcining the coated mica and then coating the resulting product with hydrous titanium and/or iron oxides and calcining the resulting product.
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: September 18, 2001
    Assignee: Engelhard Corporation
    Inventors: Carmine Vincent DeLuca, Jr., William P. Kurtenbach, Christine Mans
  • Lustrous interference pigments with black absorption color
    Publication number: 20010017097
    Abstract: A lustrous interference pigment with a black absorption color is obtained by forming a mica coated with hydrous titanium, iron and cobalt or chromium oxides, calcining the coated mica and then coating the resulting product with hydrous titanium and/or iron oxides and calcining the resulting product.
    Type: Application
    Filed: May 9, 2001
    Publication date: August 30, 2001
    Applicant: Engelhard Corporation
    Inventors: Carmine V. DeLuca, William P. Kurtenbach, Christine Mans
  • Process for preparing unsupported metal oxide nacreous pigments
    Patent number: 5611851
    Abstract: A nacreous pigment is prepared by subjecting a metal oxide-coated mica nacreous pigment to an acid extractive dissolution using a combination of a mineral acid and phosphoric acid followed by an extractive dissolution using an alkali.
    Type: Grant
    Filed: December 13, 1995
    Date of Patent: March 18, 1997
    Assignee: The Mearl Corporation
    Inventors: Carmine DeLuca, William P. Kurtenbach