Patents by Inventor Hans R. Lambert

Hans R. Lambert 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).

  • Hydrophilic coating
    Patent number: 4666437
    Abstract: A process for coating a polymer surface with a hydrophilic coating with low friction in wet condition. The process comprises applying to the polymer surface a solution containing between 0.05 to 40% of a compound which comprises at least two unreacted isocyanate groups per molecule, evaporating the solvent, applying a solution containing between 0.5 to 50% of polyvinylpyrrolidone to the thus treated polymer surface and then evaporating the solvent of the last mentioned solution, and curing the coating at elevated temperature. The process is preferably carried out in the presence of a catalyst for the curing of isocyanate.
    Type: Grant
    Filed: March 5, 1986
    Date of Patent: May 19, 1987
    Assignee: Astra Meditec Aktiebolag
    Inventor: Hans R. Lambert
  • Preparation of hydrophilic coating
    Patent number: 4585666
    Abstract: A process for coating a polymer surface with a hydrophilic coating with low friction in wet condition. The process comprises applying to the polymer surface a solution containing between 0.05 to 40% of a compound which comprises at least two unreacted isocyanate groups per molecule, evaporating the solvent, applying a solution containing between 0.5 to 50% of polyvinylpyrrolidone to the thus treated polymer surface and then evaporating the solvent of the last mentioned solution, and curing the coating at elevated temperature. The process is preferably carried out in the presence of a catalyst for the curing of isocyanate.
    Type: Grant
    Filed: June 12, 1984
    Date of Patent: April 29, 1986
    Assignee: Astra Meditec
    Inventor: Hans R. Lambert
  • Medical article having a hydrophilic coating
    Patent number: 4487808
    Abstract: A process for coating a polymer surface with a hydrophilic coating with low friction in wet condition. The process comprises applying to the polymer surface a solution containing between 0.05 to 40% of a compound which comprises at least two unreacted isocyanate groups per molecule, evaporating the solvent, applying a solution containing between 0.5 to 50% of polyethylene oxide to the thus treated polymer surface and then evaporating the solvent of the last mentioned solution, and curing the coating at elevated temperature. The process is preferably carried out in the presence of a catalyst for the curing of isocyanate.
    Type: Grant
    Filed: April 25, 1984
    Date of Patent: December 11, 1984
    Assignee: Astra Meditec Aktiebolag
    Inventor: Hans R. Lambert
  • Process for the preparation of a hydrophilic coating
    Patent number: 4459317
    Abstract: A process for coating a polymer surface with a hydrophilic coating with low friction in wet condition. The process comprises applying to the polymer surface a solution containing between 0.05 to 40% of a compound which comprises at least two unreacted isocyanate groups per molecule, evaporating the solvent, applying a solution containing between 0.05 to 50% of polyethylene oxide to the thus treated polymer surface and then evaporating the solvent of the last mentioned solution, and curing the coating at elevated temperature. The process is preferably carried out in the presence of a catalyst for the curing of isocyanate.
    Type: Grant
    Filed: April 21, 1983
    Date of Patent: July 10, 1984
    Assignee: Astra Meditec Aktiebolag
    Inventor: Hans R. Lambert
  • Moisture/heat exchanger for respiratory apparatus or similar article
    Patent number: D301377
    Type: Grant
    Filed: February 12, 1986
    Date of Patent: May 30, 1989
    Assignee: Louis Gibeck AB
    Inventor: Hans R. Lambert
  • Moisture/heat exchanger for respiratory apparatus or similar article
    Patent number: D302040
    Type: Grant
    Filed: February 12, 1986
    Date of Patent: July 4, 1989
    Assignee: Louis Gibeck AB
    Inventor: Hans R. Lambert
  • Bacteria filter or similar article
    Patent number: D325082
    Type: Grant
    Filed: December 20, 1988
    Date of Patent: March 31, 1992
    Assignee: Gibeck Respiration AB
    Inventor: Hans R. Lambert