Patents by Inventor John A. Sjogren

John A. Sjogren 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).

  • Publication number: 20060191622
    Abstract: A real-time thermal imaging apparatus and method includes multiple digital infrared cameras mounted to an automated composite material layup device to record digital infrared images of the composite material surface on a real-time basis during a composite material layup process. The digital infrared cameras are triggered periodically to produce digital images of the composite material. The digital image data is sent to an image analyzer which detects edges of and anomalies in the composite material and generates alarm and other process control signals. The image analyzer also aggregates the digital images from the multiple cameras and the digital images recorded over a sequence in time to produce a continuous virtual digital image of the composite material surface. The digital image data and associated analysis results are saved and may be displayed on a real-time basis or at a later time.
    Type: Application
    Filed: February 28, 2005
    Publication date: August 31, 2006
    Inventors: John Ritter, John Sjogren
  • Patent number: 5246714
    Abstract: Controlled release preparation containing a number of insoluble beads applied with one or more pharmaceutically active compounds, a method for the production thereof and the use in a treatment where a controlled release of a pharmaceutically active compound is needed.
    Type: Grant
    Filed: May 13, 1992
    Date of Patent: September 21, 1993
    Assignee: Aktiebolaget Hassle
    Inventors: Lars-Erik D. Dahlinder, Mats O. Johansson, John A. Sandberg, John A. Sjogren
  • Patent number: 4957745
    Abstract: Controlled release preparation containing a number of beads comprising a salt of metoprolo as the main soluble component, a method for the production thereof and the use in the treatment of cardiovascular disorders.
    Type: Grant
    Filed: February 14, 1989
    Date of Patent: September 18, 1990
    Assignee: Aktiebolaget Hassle
    Inventors: Ulf E. Jonsson, John A. Sandberg, John A. Sjogren
  • Patent number: 4942040
    Abstract: Preparation giving a controlled and extended release of both a dihydropyridine, e.g. felodipine and a .beta.-adrenoreceptor antagonist, namely metoprolol as well as a method for the manufacture of the new preparation.
    Type: Grant
    Filed: September 29, 1988
    Date of Patent: July 17, 1990
    Assignee: Aktiebolaget Hassle
    Inventors: Gert A. Ragnarsson, Kajsa M. Silfverstrand, John A. Sjogren
  • Patent number: 4803081
    Abstract: An extended release perparation of an active compound with very low solubility containing the active compound dissolved or dispersed in a semi-solid or liquid non-ionic solubilizer and whereby the amount by weight of the solubilizer is at least equal to the amount by weight of the active compound as well as a process for the preparation thereof.
    Type: Grant
    Filed: April 3, 1987
    Date of Patent: February 7, 1989
    Assignee: Aktiebolaget Hassle
    Inventors: Karl-Erik L. Falk, Sven M. Hugosson, Adam Rosinski, John A. Sjogren
  • Patent number: 4465667
    Abstract: The present invention relates to gastric acid neutralizing compositions comprising dried aluminum hydroxide in suspension form, whereby the composition as suspension stabilizing and suspension forming agent comprises a hydrogenated, hydrolyzed glucose polymer in an amount of 2 to 30% by weight. By way of this content of the glucose polymer the amount of gastric acid neutralizing substance can be increased whereby smaller doses can be administered in obtaining gastric acid neutralization.
    Type: Grant
    Filed: January 11, 1982
    Date of Patent: August 14, 1984
    Assignee: Aktiebolaget Hassle
    Inventors: Eva K. Byrod, John A. Sjogren
  • Patent number: 4263273
    Abstract: A solid pharmaceutical preparation for administration in dosage unit form comprising a therapeutically effective cardiac glycoside, whereby each dosage unit is to comprise a plurality of bodies, each of said bodies having a pharmaceutically indifferent core, a first layer thereon containing the glycoside and a second layer containing a polymer insoluble in gastric juice and soluble in intestinal juice, a process for preparing such preparation and a method of treatment employing the same.
    Type: Grant
    Filed: December 17, 1979
    Date of Patent: April 21, 1981
    Assignee: Aktiebolaget Astra
    Inventors: Curt H. Appelgren, Conny B. Bogentoft, John A. Sjogren