Patents by Inventor Karen Lienkamp

Karen Lienkamp 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: 10889726
    Abstract: The present invention provides a polymer having antimicrobial and/or antifouling (protein-repellent) properties, a monomer that can be used in a method of producing the polymer of the invention, and a use of the polymer of the invention, including a method for coating the surface of a material, substrate or product with the polymer of the invention, as well as to products comprising the polymer of the invention and/or a coating comprising the polymer of the invention.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: January 12, 2021
    Assignee: ALBERT-LUDWIGS-UNIVERSITÄT FREIBURG
    Inventors: Karen Lienkamp, David Boschert, Alexandra Schneider - Chaabane, Ali Al-Ahmad
  • Publication number: 20190313642
    Abstract: The present invention concerns a simultaneously antimicrobial and antifouling and protein repellent polyzwitterion (monolayers, polymer networks and surface-attached polymer networks formed thereby), and substrates coated with the inventive simultaneously antimicrobial and antifouling and protein repellent polyzwitterion. The invention also concerns uses of the inventive polymers and substrates for preventing and combating microbial growth.
    Type: Application
    Filed: November 14, 2017
    Publication date: October 17, 2019
    Inventors: Karen LIENKAMP, Monika KUROWSKA, Diana Lorena GUEVARA-SOLARTE, Alice HETTLER, Ali ALAHMAD, Esther RIGA
  • Patent number: 10259915
    Abstract: The present invention relates to substrates comprising a crosslinked network of covalently attached antimicrobial and/or antibiofouling polymers. The crosslinked network of antimicrobial and/or antibiofouling polymers acts highly efficiently against pathogens, e.g. bacteria and fungi. Both the antimicrobial and the antibiofouling cross-linked polymer networks are preferably better resistant to mechanical damage than simple surface-immobilized polymer monolayers. The antimicrobial and/or antibiofouling polymers of the crosslinked network are preferably obtained by ring opening metathesis polymerization (ROMP) and exhibit a molecular weight of preferably more than 30,000 or even 100,000 g mol?1. The crosslinked network of antimicrobial and/or antibiofouling polymers is preferably covalently attached to the surface of a substrate, e.g. an implant, a medical device, medical equipment or a (tissue-supporting) biomaterial, etc.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: April 16, 2019
    Assignees: UNIVERSITATSKLINIKUM FREIBURG, ALBERT-LUDWIGS-UNIVERSITAT FREIBURG
    Inventors: Karen Lienkamp, Jakob Belardi, Peng Zou, Ali Al-Ahmad, Thorsten Steinberg, Pascal Tomakidi
  • Publication number: 20180327607
    Abstract: The present invention provides a polymer having antimicrobial and/or antifouling (protein-repellent) properties, a monomer that can be used in a method of producing the polymer of the invention, and a use of the polymer of the invention, including a method for coating the surface of a material, substrate or product with the polymer of the invention, as well as to products comprising the polymer of the invention and/or a coating comprising the polymer of the invention.
    Type: Application
    Filed: November 15, 2016
    Publication date: November 15, 2018
    Inventors: Karen LIENKAMP, David BOSCHERT, Alexandra SCHNEIDER, Ali AL-AHMAD
  • Patent number: 9957544
    Abstract: The present invention relates to a device comprising a sample receiving appliance, a receiving appliance for test organisms, preferably for a suspension comprising test organisms, in particular for a bacterial suspension, and a jet pump appliance, wherein the jet pump appliance is, or can be brought, into active connection with the receiving appliance, and wherein the jet pump appliance is designed and installed in order, by means of a propellant medium having a higher pressure than atmospheric pressure at the location of installation of the device to spray test organisms in the form of an aerosol in the direction of the sample receiving installation, wherein the device has an installation for controlling a reproducible pressure of the propellant medium during the spraying of the test organisms and also the use of a device according to the invention.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: May 1, 2018
    Assignee: UNIVERSITATSKLINIKUM FREIBURG
    Inventors: Thorsten Steinberg, Ali Al-Ahmad, Karen Lienkamp, Norbert Nanko
  • Patent number: 9332755
    Abstract: The present invention relates to substrates comprising covalently attached antimicrobial polymers, which act as synthetic mimics of antimicrobial peptides (SMAMPs) and are preferably obtained by ring opening metathesis polymerization (ROMP). The inventive antimicrobial polymers exhibit a molecular weight of more than 100,000 g mol?1 and are preferably covalently attached to the surface of a substrate, e.g. an implant, a medical device, medical equipment or a (tissue-supporting) biomaterial, etc. Covalent bonding may be carried out using a photoreactive crosslinker but also by “grafting onto” or “grafting from”. The present invention is also directed to uses of the inventive antimicrobial polymers as defined herein, e.g. for antimicrobially coating a surface of such a substrate with a layer of the inventive antimicrobial polymer.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: May 10, 2016
    Assignees: UNIVERSITAETSKLINIKUM FREIBURG, ALBERT-LUDWIGS-UNIVERSITAET FREIBURG
    Inventors: Thorsten Steinberg, Karen Lienkamp, Pascal Tomakidi, Ali Al-Ahmad
  • Publication number: 20150025168
    Abstract: The present invention relates to substrates comprising a crosslinked network of covalently attached antimicrobial and/or antibiofouling polymers. The crosslinked network of antimicrobial and/or antibiofouling polymers acts highly efficiently against pathogens, e.g. bacteria and fungi. Both the antimicrobial and the antibiofouling cross-linked polymer networks are preferably better resistant to mechanical damage than simple surface-immobilized polymer monolayers. The antimicrobial and/or antibiofouling polymers of the crosslinked network are preferably obtained by ring opening metathesis polymerization (ROMP) and exhibit a molecular weight of preferably more than 30,000 or even 100,000 g mol?1. The crosslinked network of antimicrobial and/or antibiofouling polymers is preferably covalently attached to the surface of a substrate, e.g. an implant, a medical device, medical equipment or a (tissue-supporting) biomaterial, etc.
    Type: Application
    Filed: March 8, 2013
    Publication date: January 22, 2015
    Applicant: Universitatsklinikum Freiburg
    Inventors: Karen Lienkamp, Jakob Belardi, Peng Zou, Ali Al-Ahmad, Thorsten Steinberg, Pascal Tomakidi
  • Publication number: 20150017680
    Abstract: The present invention relates to a device comprising a sample receiving appliance, a receiving appliance for test organisms, preferably for a suspension comprising test organisms, in particular for a bacterial suspension, and a jet pump appliance, wherein the jet pump appliance is, or can be brought, into active connection with the receiving appliance, and wherein the jet pump appliance is designed and installed in order, by means of a propellant medium having a higher pressure than atmospheric pressure at the location of installation of the device to spray test organisms in the form of an aerosol in the direction of the sample receiving installation, wherein the device has an installation for controlling a reproducible pressure of the propellant medium during the spraying of the test organisms and also the use of a device according to the invention.
    Type: Application
    Filed: March 1, 2013
    Publication date: January 15, 2015
    Inventors: Thorsten Steinberg, Ali Al-Ahmad, Karen Lienkamp, Norbert Nanko
  • Publication number: 20130338326
    Abstract: The present invention relates to substrates comprising covalently attached antimicrobial polymers, which act as synthetic mimics of antimicrobial peptides (SMAMPs) and are preferably obtained by ring opening metathesis polymerization (ROMP). The inventive antimicrobial polymers exhibit a molecular weight of more than 100,000 g mol?1 and are preferably covalently attached to the surface of a substrate, e.g. an implant, a medical device, medical equipment or a (tissue-supporting) biomaterial, etc. Covalent bonding may be carried out using a photoreactive crosslinker but also by “grafting onto” or “grafting from”. The present invention is also directed to uses of the inventive antimicrobial polymers as defined herein, e.g. for antimicrobially coating a surface of such a substrate with a layer of the inventive antimicrobial polymer.
    Type: Application
    Filed: December 22, 2011
    Publication date: December 19, 2013
    Applicants: ALBERT-LUDWIGS-UNIVERSITAET FREIBURG, UNIVERSITAETSKLINIKUM FREIBURG
    Inventors: Thorsten Steinberg, Karen Lienkamp, Pascal Tomakidi, Ali AL-Ahmad
  • Patent number: 8445611
    Abstract: The invention generally relates to novel polymers (SMAMPs) and their syntheses and use. The polymers exhibit promising properties of AMPs. In particularly, for example, a ring-opening metathesis polymerization (ROMP) platform was developed that allows syntheses of SMAMPs that employ a minimum number of norbornene-based building blocks and/or enable easy and independent variation of hydrophobic and hydrophilic groups in the monomer units and/or along the polymeric backbone to finetune and select desirable properties of the polymers.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: May 21, 2013
    Assignee: University of Massachusetts
    Inventors: Gregory N. Tew, Ahmad E. Madkour, Karen Lienkamp, Ashlan Marie Musante
  • Publication number: 20120195849
    Abstract: The invention generally relates to novel polymers (SMAMPs) and their syntheses and use. The polymers exhibit promising properties of AMPs. In particularly, for example, a ring-opening metathesis polymerization (ROMP) platform was developed that allows syntheses of SMAMPs that employ a minimum number of norbornene-based building blocks and/or enable easy and independent variation of hydrophobic and hydrophilic groups in the monomer units and/or along the polymeric backbone to finetune and select desirable properties of the polymers.
    Type: Application
    Filed: April 6, 2012
    Publication date: August 2, 2012
    Inventors: Gregory Tew, Ahmad E. Madkour, Karen Lienkamp, Ashlan Marie Musante
  • Patent number: 8153739
    Abstract: The invention generally relates to novel polymers (SMAMPs) and their syntheses and use. The polymers exhibit promising properties of AMPs. In particularly, for example, a ring-opening metathesis polymerization (ROMP) platform was developed that allows syntheses of SMAMPs that employ a minimum number of norbornene-based building blocks and/or enable easy and independent variation of hydrophobic and hydrophilic groups in the monomer units and/or along the polymeric backbone to finetune and select desirable properties of the polymers.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: April 10, 2012
    Assignee: University of Massachusetts
    Inventors: Gregory Tew, Ahmad E. Madkour, Karen Lienkamp, Ashlan Marie Musante
  • Publication number: 20100317870
    Abstract: The invention generally relates to novel polymers (SMAMPs) and their syntheses and use. The polymers exhibit promising properties of AMPs. In particularly, for example, a ring-opening metathesis polymerization (ROMP) platform was developed that allows syntheses of SMAMPs that employ a minimum number of norbornene-based building blocks and/or enable easy and independent variation of hydrophobic and hydrophilic groups in the monomer units and/or along the polymeric backbone to finetune and select desirable properties of the polymers.
    Type: Application
    Filed: June 8, 2010
    Publication date: December 16, 2010
    Inventors: Gregory Tew, Ahmad E. Madkour, Karen Lienkamp, Ashlan Marie Musante