Patents by Inventor Jan-Christer Eriksson

Jan-Christer Eriksson 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).

  • Method to prepare superhydrophobic surfaces on solid bodies by rapid expansion solutions
    Patent number: 8722143
    Abstract: The present invention refers to a method for preparing a superhydrophobic surface on a solid substrate comprising the steps of (a) providing a solvent in the form of a pressurized fluid in a vessel, wherein the fluid exhibits a decrease in solvency power with decreasing pressure; (b) adding a hydrophobic substance to the solvent as a solute, which substance is soluble with the pressurized fluid and has the ability to crystallize/precipitate after expansion of the fluid, thereby obtaining a solution of the solvent and the solute in the vessel; (c) having at least one orifice opened on the vessel, thereby causing the pressurized solution to flow out of the vessel and depressurize in ambient air or in an expansion chamber having a lower pressure than within the vessel, the solute thereby forming particles; and (d) depositing the particles on the substrate in order to obtain a superhydrophobic surface.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: May 13, 2014
    Assignee: Cellutech AB
    Inventors: Oskar Peter Werner, Lars-Erik Rudolf Wagberg, Can Quan, Charlotta Kristina Turner, Jan-Christer Eriksson
  • METHOD TO PREPARE SUPERHYDROPHOBIC SURFACES ON SOLID BODIES BY RAPID EXPANSION SOLUTIONS
    Publication number: 20110059307
    Abstract: The present invention refers to a method for preparing a superhydrophobic surface on a solid substrate comprising the steps of (a) providing a solvent in the form of a pressurized fluid in a vessel, wherein the fluid exhibits a decrease in solvency power with decreasing pressure; (b) adding a hydrophobic substance to the solvent as a solute, which substance is soluble with the pressurized fluid and has the ability to crystallize/precipitate after expansion of the fluid, thereby obtaining a solution of the solvent and the solute in the vessel; (c) having at least one orifice opened on the vessel, thereby causing the pressurized solution to flow out of the vessel and depressurize in ambient air or in an expansion chamber having a lower pressure than within the vessel, the solute thereby forming particles; and (d) depositing the particles on the substrate in order to obtain a superhydrophobic surface.
    Type: Application
    Filed: June 30, 2008
    Publication date: March 10, 2011
    Applicant: SweTree Technologies AB
    Inventors: Oskar Peter Werner, Lars-Erik Rudolf Wågberg, Can Quan, Charlotta Kristina Turner, Jan-Christer Eriksson
  • Non-thrombogenic medical article and a method for its preparation
    Patent number: 4118485
    Abstract: A medical article is made non-thrombogenic by means of a surface coating containing heparin. The heparinized surface is stabilized by being contacted first with a cationic surfactant of the primary amine type and, subsequently, with a dialdehyde.
    Type: Grant
    Filed: March 15, 1976
    Date of Patent: October 3, 1978
    Assignee: Aminkemi Aktiebolag
    Inventors: Jan-Christer Eriksson, Rolf Larsson, Ake Rosengren, Maj-Britt Hjelte