Patents by Inventor Jiri Labsky

Jiri Labsky 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).

  • Injectable gel-forming compositions based on cross-linked and non-cross-linked polymers and the use thereof
    Publication number: 20060210635
    Abstract: The invention relates to injectable gel-forming compositions which contain an association of linear and cross-linked polymers and are embodied in the form of a suspension. The use of said compositions, in particular for filling pipes and cavities is also disclosed.
    Type: Application
    Filed: January 5, 2004
    Publication date: September 21, 2006
    Applicants: ASSISTANCE PUBLIQUE-HOPITAUX DE PARIS, UNIVERSITE PARIS SUD XI
    Inventors: Alexandre Laurent, Denis Labarre, Jiri Labsky, Jiri Honiger, Rene Chapot, Michel Wassef, Aymeric Seron
  • Activated solid carrier and a method of its preparation
    Patent number: 4245064
    Abstract: The invention relates to a solid insoluble carrier which is activated for bonding of nucleophilic groups and to a method of its preparation. The carrier contains active groups --O.CO.O.R, where R is the residue selected from the group comprising nitrophenyl, dinitrophenyl, trichlorophenyl, pentachlorophenyl, N-succinimidyl, N-phthalimidyl, and 8-quinolinyl. Active groups are bonded to polysaccharides, phenol-formaldehyde resins, polyacrylates, or polyacrylamides. The invention further relates to a method for preparation of the polymeric carrier, which consists in treatment of polymers carrying hydroxyl functions and selected from the group comprising polysaccharides, phenol-formaldehyde resins, polyacrylates, and polyacrylamides, with esters of chloroformic acid which contain the above mentioned active groups.
    Type: Grant
    Filed: February 12, 1979
    Date of Patent: January 13, 1981
    Assignee: Ceskoslovenska akademie ved
    Inventors: Jaroslav Drobnik, Jaroslav Kalal, Jiri Labsky, Vladimir Saudek, Frantisek Svec
  • Preparation of biogically active substances bearing -NH.sub.2 groups in a form releasable by enzymatic cleavage
    Patent number: 4097470
    Abstract: Polymeric form of a biologically active compound containing at least one -NH.sub.2 group in its molecule, adapted for the protracted release of said biologically active compound by enzymatic cleavage of the polymer in vivo in the organism. The active compound is bonded by its -NH.sub.2 group to the carboxylic group of an L-amino acid as for instance, .beta.-phenylalanine, tyrosine, tryptophane, lysine, arginine, glycine, alanine, leucine, citruline or ornithine, which latter is in twin bonded by its amino group to the terminal carboxylic group of the side chain of a substituted amide or ester of acrylic or methacrylic acid, said side chain constituting a linear moiety containing at least 3 carbon atoms.
    Type: Grant
    Filed: June 9, 1975
    Date of Patent: June 27, 1978
    Assignee: Ceskoslovenska akademie ved
    Inventors: Jaroslav Drobnik, Jindrich Kopecek, Jiri Labsky, Pavla Rejmanova, Josef Exner, Jaroslav Kalal
  • 1,4-Diacyloxy-2,3-butendiol
    Patent number: 3950399
    Abstract: A new compound, 1,4-diacyloxy-2,3-butanediol, having the general formula ##EQU1## where R is hydrogen atom or methyl group. The compound can be used above all as a crosslinking agent in the preparation of crosslinked hydrophilic polymeric gels. This compound can be prepared by opening the epoxy ring in such a way, that 1 mole of 1,2-3,4-diepoxybutane is treated with 2 moles of unsaturated acid of the general formula ##EQU2## where R has the aforementioned meaning.
    Type: Grant
    Filed: January 30, 1974
    Date of Patent: April 13, 1976
    Assignee: Ceskoslovenska akademie ved
    Inventors: Jiri Labsky, Josef Exner