Patents by Inventor Ralph HOLLAUS

Ralph HOLLAUS 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: 20220403054
    Abstract: A thiol-modified hyaluronan, wherein the thiol-modified hyaluronan comprises a plurality of modification groups with a thiol-group in the hyaluronan side-chains, wherein the modification group comprises an amino acid residue with basic side chain and a conjugated terminal naturally occurring amino-thiol as well as a sterile hydrogel composition comprising a crosslinked polymer, wherein the crosslinked polymer is an oxidation product of the thiol-modified hyaluronan and uses of the composition.
    Type: Application
    Filed: December 18, 2020
    Publication date: December 22, 2022
    Inventor: Ralph HOLLAUS
  • Publication number: 20210261760
    Abstract: A sterile hydrogel composition that includes a crosslinked polymer, wherein the crosslinked polymer is an oxidation product of a thiol-modified hyaluronan and wherein the thiol-modified hyaluronan has a degree of modification of hyaluronan with thiol moieties of more than about 80 ?mol per gram polymer, wherein the thiol-modified hyaluronan has a degree of modification of hyaluronan with thiol moieties of less than about 280 ?mol per gram polymer, and wherein the thiol-modified hyaluronan has a mean molecular weight of at least 400 kDa.
    Type: Application
    Filed: June 14, 2019
    Publication date: August 26, 2021
    Inventors: Martin PRINZ, Ralph HOLLAUS, Robert SACHSENHOFER
  • Publication number: 20210260243
    Abstract: A sterile hydrogel composition comprising a crosslinked polymer, wherein the crosslinked polymer is an oxidation product of a thiol-modified hyaluronan and wherein the thiol-modified hyaluronan has a degree of modification of hyaluronan with thiol moieties of more than about 80 ?mol per gram polymer, wherein the thiol-modified hyaluronan has a degree of modification of hyaluronan with thiol moieties of less than about 280 ?mol per gram polymer, wherein the composition has a residual thiol content of less than 20% in respect to the degree of modification of the thiol-modified hyaluronan.
    Type: Application
    Filed: June 14, 2019
    Publication date: August 26, 2021
    Inventors: Martin PRINZ, Ralph HOLLAUS, Robert SACHSENHOFER
  • Patent number: 11013760
    Abstract: Polyguanidines and methods of use thereof are described. In particular, polyguanidines of formula (I), formula (II), and formula (III) are described. The polyguanidines can be used to treat infection, such as bacterial, viral or fungal infection, and as an ex vivo microbial agent.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: May 25, 2021
    Assignee: SEALIFE PHARMA GMBH
    Inventors: Alexander Pretsch, Michael Nagl, Christoph Wiesner, Ralph Hollaus, Miroslav Genov
  • Publication number: 20190269719
    Abstract: Polyguanidines and methods of use thereof are described. In particular, polyguanidines of formula (I), formula (II), and formula (III) are described. The polyguanidines can be used to treat infection, such as bacterial, viral or fungal infection, and as an ex vivo microbial agent.
    Type: Application
    Filed: May 14, 2019
    Publication date: September 5, 2019
    Inventors: Alexander PRETSCH, Michael NAGL, Christoph WIESNER, Ralph HOLLAUS, Miroslav GENOV
  • Patent number: 10335431
    Abstract: A method for preparing polycondensation products of guanidine, aminoguanidine or diaminoguanidine G with one or more benzyl or allyl derivatives BA according to the following reaction scheme is provided: wherein X, R1, Gua, Y and Z are as defined in the specification. In the disclosed method, at least one benzyl or allyl derivative BA is subjected to a polycondensation reaction with excessive guanidine, aminoguanidine or diaminoguanidine G upon elimination of HX.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: July 2, 2019
    Assignee: Sealife Pharma GmbH
    Inventors: Alexander Pretsch, Michael Nagl, Christoph Wiesner, Ralph Hollaus, Miroslav Genov
  • Publication number: 20170224723
    Abstract: A method for preparing polycondensation products of guanidine, aminoguanidine or diaminoguanidine G with one or more benzyl or allyl derivatives BA according to the following reaction scheme is provided: wherein X, R1, Gua, Y and Z are as defined in the specification. In the disclosed method, at least one benzyl or allyl derivative BA is subjected to a polycondensation reaction with excessive guanidine, aminoguanidine or diaminoguanidine G upon elimination of HX.
    Type: Application
    Filed: July 30, 2015
    Publication date: August 10, 2017
    Inventors: Alexander PRETSCH, Michael NAGL, Christoph WIESNER, Ralph HOLLAUS, Miroslav GENOV