Patents by Inventor Zbigniew Czech

Zbigniew Czech 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).

  • Patent number: 5785985
    Abstract: A medical pressure sensitive adhesive mass having a moisture vapor transmission of at least 10,000 g/m.sup.2 /24.h (measured with a pressure sensitive adhesive film having a weight of 30 g/m.sup.2) and an excellent adhesion to both dry skin and that is moist due to perspiration, comprising:A) a copolymer synthesized from components comprising:1) 50 to 95%-wt., preferably 70 to 90%-wt., based on the weight of the copolymer, of one or several alkyl esters of acrylic and/or methacrylic acid have 4 to 12 C-atoms in the alkyl residue; and2) 5 to 50%-wt., preferably 10 to 30%-wt., based on the weight of the copolymer, of a vinylcarboxylic acid,B) 25 to 90%-wt., preferably 50 to 80%-wt., of a hydrophilic emulsifier comprising tertiary or quaternary ammonium groups,C) 15 to 60%-wt., preferably 20 to 40%-wt., of a hydrophilic polyoxyalkylene groups-containing emulsifier which is free from amino groups,D) 1 to 20%-wt., preferably 3 to 15%-wt., of a polyvinylcarboxylic acid,E) 1 to 15%-wt., preferably 3 to 10%-wt.
    Type: Grant
    Filed: November 13, 1996
    Date of Patent: July 28, 1998
    Assignee: Lohmann GmbH & Co., KG
    Inventors: Zbigniew Czech, Kurt Seeger
  • Patent number: 5458885
    Abstract: A transdermal system employing a basic active component-permeable, pressure sensitive adhesive polymer material, particularly for use with basic active components for use in transdermal administration of systemically or topically acting medicaments constituted by such active components. The adhesive polymer is a homopolymer or copolymer produced using basic monomers preferably on an acrylate base. A process for production of the polymer material comprises mixing monomers suitable for the production of an adhesive by polymerization with basic monomers which can be polymerized and copolymerizing the mixture. The adhesive composition is in particular useful with basic active components in salt form and in which the therapeutically active agent is a Lewis base.
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: October 17, 1995
    Assignees: LTS Lohmann Therapie-Systeme GmbH & Co., KG of Germany, Sandoz AG
    Inventors: Walter Muller, Zbigniew Czech, Gunter Simon, Joerg Reinhard
  • Patent number: 5433892
    Abstract: The invention concerns an electrically conductive, transparent, pressure-sensitive adhesive film with an electric conductivity above 10.sup.-5 S, for the production of biomedical electrodes, consisting of100 parts by weight of a carboxyl group-containing copolymer on an acrylate basis;50 to 150 parts by weight of a water-soluble amine;50 to 250 parts by weight of a polyoxyalkylene with a molecular mass of below 1000 and/or a polyalcohol and/or its derivatives;50 to 200 parts by weight of a solution of electrolytes and0.1 to 6 parts by weight of a cross-linking agent.
    Type: Grant
    Filed: June 2, 1993
    Date of Patent: July 18, 1995
    Assignee: Lohmann GmbH & Co. KG
    Inventor: Zbigniew Czech
  • Patent number: 5336501
    Abstract: The invention relates to a wound secretion absorbing hydrogel of the following composition:______________________________________ a) 20 to 70%-wt of at least one multivalent alcohol b) 10 to 35%-wt of at least one natural thickener (biopolymer) c) 0.05 to 12%-wt of at least one uncross-linked copolymer of one or more vinylcar- boxylic acids and their salts (syn- thetic polymer) d) 0.05 to 10%-wt of a cross-linking agent e) 0 to 50%-wt of a water or physiological saline ______________________________________as well as to the use of this hydrogel as wound dressing.
    Type: Grant
    Filed: April 29, 1992
    Date of Patent: August 9, 1994
    Assignee: Lohmann GmbH & Co. KG
    Inventors: Zbigniew Czech, Kurt Seeger
  • Patent number: 5135755
    Abstract: The invention relates to a wound secretion absorbing hydrogel of the following composition:a) 20 to 70%-wt of at least one multivalent alcoholb) 10 to 35%-wt of at least one natural thickener (biopolymer)c) 0.05 to 12%-wt of at least one uncross-linked copolymer of one or more vinylcarboxylic acids and their salts (synthetic polymer)d) 0.05 to 10%-wt of a cross-linking agente) 0 to 50%-wt of water or physiological salineas well as to the use of this hydrogel as wound dressing.
    Type: Grant
    Filed: February 6, 1990
    Date of Patent: August 4, 1992
    Assignee: Lohmann GmbH & Co. KG
    Inventors: Zbigniew Czech, Kurt Seeger
  • Patent number: 5084348
    Abstract: An adhesive composition and accompanying tape wherein the adhesive is a water-soluble, pressure-sensitive adhesive mass consisting ofa) 100 parts by weight of at least one water-soluble copolymer of 55 to 90%-wt of at least one vinylcarbonic acid, 5 to 35%-wt of at least one hydroxyalkyl (meth-) acrylate, 1 to 15%-wt of at least one N-substituted (meth-)- acrylamide derivative of the formula ##STR1## in which R.sub.1 and R.sub.2 are the same or different and can represent an alkyl wherein one of R.sub.1 and R.sub.2 can also be a hydrogen atom, and R.sub.3 is a hydrogen atom or a methyl group, and 0.05 to 10%-wt of at least one vinylcarbonic acid salt,b) 50 to 200 parts by weight of at least one water-soluble softener including a polyoxyalkylene group having a molecular mass of up to 1000 andb) 0.1 to 8 parts by weight of a cross-linking agent.
    Type: Grant
    Filed: January 12, 1990
    Date of Patent: January 28, 1992
    Assignee: Lohmann GmbH & Co. KG
    Inventors: Zbigniew Czech, Jorg Wehmann