Patents by Inventor Gunnar Gustafsson

Gunnar Gustafsson 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).

  • Process and means for down stream processing
    Patent number: 6706188
    Abstract: A method for recovering a desired component from a sample solution with beads under stabilized fluidized bed conditions is provided. Also provided are support beads for use in downstream processing which comprise a polymer matrix into which glass or silica particles have been incorporated.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: March 16, 2004
    Assignee: Amersham Biociences AB
    Inventors: Mats Carlsson, Jan-Gunnar Gustafsson, Per Hedman, Per-Åke Pernemalm, Jörgen Lönngren, Annika Lindgren
  • Method for producing a correctly folded, biological active recombinant protein
    Patent number: 6605706
    Abstract: Methods for producing correctly folded biological active recombinant protein or polypeptide comprise the steps of expressing the protein or polypeptide in prokaryotic cells, harvesting the cells, directly solubilizing the cells in a buffer at pH of about 8 to 11 with the chaotropic agent and a reducing agent, and diluting the solution with water and a diluent. The method is conducted in the absence of mechanical disruption of the cells and isolation and washing of refractile bodies.
    Type: Grant
    Filed: July 6, 1998
    Date of Patent: August 12, 2003
    Assignee: Pharmacia AB
    Inventors: Jan-Gunnar Gustafsson, Johan Öhman
  • Process and means for down stream processing
    Publication number: 20020153320
    Abstract: A method for recovering a desired component from a sample solution with beads under stabilized fluidized bed conditions is provided. Also provided are support beads for use in downstream processing which comprise a polymer matrix into which glass or silica particles have been incorporated.
    Type: Application
    Filed: April 5, 2002
    Publication date: October 24, 2002
    Applicant: PHARMACIA LKB BIOTECHNOLOGY AB
    Inventors: Mats Carlsson, Jan-Gunnar Gustafsson, Per Hedman, Per-Ake Pernemalm, Jorgen Lonngren, Annika Lindgren
  • Process and means for down stream processing
    Patent number: 6398963
    Abstract: Support beads for downstream processing including a polymer, esp. a polysaccharide, matrix into which glass or silica particles, preferably quartz particles, have been incorporated, and their use in downstream processing, especially stabilized fluidized bed separations.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: June 4, 2002
    Assignee: Amersham Pharmacia Biotech Aktiebolag
    Inventors: Mats Carlsson, Jan-Gunnar Gustafsson, Per Hedman, Per-Åke Pernemalm, Jörgen Lönngren, Annika Lindgren
  • Process and means for down stream processing
    Patent number: 6325937
    Abstract: Support beads for downstream processing comprising a polymer, esp. a polysaccharide, matrix into which glass or silica particles, preferably quartz particles, have been incorporated, and their use in downstream processing, especially stabilized fluidized bed separations.
    Type: Grant
    Filed: March 5, 1998
    Date of Patent: December 4, 2001
    Assignee: Amersham Pharmacia Biotech AB
    Inventors: Mats Carlsson, Jan-Gunnar Gustafsson, Per Hedman, Per-Åke Pernemalm, Jörgen Lönngren, Annika Lindgren
  • Process and means for down stream processing
    Patent number: 5522993
    Abstract: Support beads for downstream processing comprising a polymer, esp. a polysaccharide, matrix into which glass or silica particles, preferably quartz particles, have been incorporated, and their use in downstream processing, especially stabilized fluidized bed separations.
    Type: Grant
    Filed: March 29, 1995
    Date of Patent: June 4, 1996
    Assignee: Pharmacia Biotech AB
    Inventors: Mats Carlsson, Jan-Gunnar Gustafsson, Per Hedman, Per-Ake Pernemalm, Jorgen Lonngren
  • Dry mop element
    Patent number: 3978541
    Abstract: Dry mop comprising a sheet material and a multitude of parallel strands preferably in zig-zag runs spaced apart and attached to said sheet by means of glue, said strands being cylindrical and constituted of a soft, felt-like material and having a far greater thickness than said sheet, and wherein the distance between adjacent strands corresponds to the strand thickness. The glue is in a strip which fastens the strand by a limited part of its circumference to allow the strand to roll on its circumference when it is dragged across a surface to be cleaned.
    Type: Grant
    Filed: November 7, 1975
    Date of Patent: September 7, 1976
    Inventor: Gunnar Gustafsson