Patents by Inventor Leonard Van Gorkom

Leonard Van Gorkom 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).

  • Microemulsion facial washes comprising specific oils
    Publication number: 20030095990
    Abstract: The invention relates to microemulsion comprising oils having defined cleansing and spreadability and providing superior cleansing, mildness, and good feel relative to conventional, non-microemulsion products.
    Type: Application
    Filed: June 19, 2001
    Publication date: May 22, 2003
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Xi Yuan Hua, Leonard Van Gorkom, Michael Paul Aronson, Zhenhe Zhu
  • Non-contact method for measuring amount of sebum or oil on substrate in real time using fluorescence dye
    Patent number: 6524242
    Abstract: The invention provides a non-contact (non-invasive) method for measuring quantity of sebum oil on skin or other substrate. The method includes applying fluorescent lipophilic dye to the substrate site of interest, illuminating the site at the excitation wavelength of the dye, and collecting fluorescent emission of desired wavelength of the dye. Because the measurements are truly non-contact, they can be made in real time on the same sites for any desired length of time.
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: February 25, 2003
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Krishna Kumar Subramanyan, Leonard Van Gorkom, Zhenhe Zhu, Archana K Sah, Thomas Hancewicz
  • NON-CONTACT METHOD FOR MEASURING AMOUNT OF SEBUM OR OIL ON SUBSTRATE IN REAL TIME USING FLUORESCENCE DYE
    Publication number: 20030004404
    Abstract: The invention provides non-contact (non-invasive) method for measuring quantity of sebum oil on skin as other substrate. Because the measurements are truly non-contact, they can be made in real time on the same sites for any desired length of time.
    Type: Application
    Filed: June 19, 2001
    Publication date: January 2, 2003
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Krishna Kumar Subramanyan, Leonard Van Gorkom, Zhenhe Zhu, Xi Yuan Hua, Archana K. Sah, Thomas Hancewicz
  • Non-contact method for measuring amount of skin sebum or oil in real time using fiber optic probe
    Patent number: 6475144
    Abstract: The invention provides a non-contact process for measuring amount of sebum or oil on skin or other substrate. Process is preferably done in vivo because of ability to measure formation of sebum/oil on skin in real time.
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: November 5, 2002
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Archana K Sah, Leonard Van Gorkom, Zhenhe Zhu, Thomas Hancewicz
  • Automatic dishwashing compositions containing aluminum tetrahydroxide
    Patent number: 5731277
    Abstract: A composition and method for inhibiting the extraction of transition metals from tableware washed in automatic dishwashers is described. The composition contains an aluminum species in which substantially all of the aluminum (III) ions are present as aluminum tetrahydroxide. A bleaching agent, a builder and optionally a surfactant and a silicate are present. The composition has a pH of less than about 10. A process for preparing the composition is also described.
    Type: Grant
    Filed: June 21, 1996
    Date of Patent: March 24, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Richard Gerald Gary, Petrus Adrianus Johannes Marinus Angevaare, Arnold Oscar Jensen, Leonard Van Gorkom