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).
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Patent number: 10889726Abstract: 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: GrantFiled: November 15, 2016Date of Patent: January 12, 2021Assignee: ALBERT-LUDWIGS-UNIVERSITÄT FREIBURGInventors: Karen Lienkamp, David Boschert, Alexandra Schneider - Chaabane, Ali Al-Ahmad
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Publication number: 20190313642Abstract: 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: ApplicationFiled: November 14, 2017Publication date: October 17, 2019Inventors: Karen LIENKAMP, Monika KUROWSKA, Diana Lorena GUEVARA-SOLARTE, Alice HETTLER, Ali ALAHMAD, Esther RIGA
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Patent number: 10259915Abstract: 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: GrantFiled: March 8, 2013Date of Patent: April 16, 2019Assignees: UNIVERSITATSKLINIKUM FREIBURG, ALBERT-LUDWIGS-UNIVERSITAT FREIBURGInventors: Karen Lienkamp, Jakob Belardi, Peng Zou, Ali Al-Ahmad, Thorsten Steinberg, Pascal Tomakidi
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Publication number: 20180327607Abstract: 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: ApplicationFiled: November 15, 2016Publication date: November 15, 2018Inventors: Karen LIENKAMP, David BOSCHERT, Alexandra SCHNEIDER, Ali AL-AHMAD
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Patent number: 9957544Abstract: 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: GrantFiled: March 1, 2013Date of Patent: May 1, 2018Assignee: UNIVERSITATSKLINIKUM FREIBURGInventors: Thorsten Steinberg, Ali Al-Ahmad, Karen Lienkamp, Norbert Nanko
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Patent number: 9332755Abstract: 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: GrantFiled: December 22, 2011Date of Patent: May 10, 2016Assignees: UNIVERSITAETSKLINIKUM FREIBURG, ALBERT-LUDWIGS-UNIVERSITAET FREIBURGInventors: Thorsten Steinberg, Karen Lienkamp, Pascal Tomakidi, Ali Al-Ahmad
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Publication number: 20150025168Abstract: 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: ApplicationFiled: March 8, 2013Publication date: January 22, 2015Applicant: Universitatsklinikum FreiburgInventors: Karen Lienkamp, Jakob Belardi, Peng Zou, Ali Al-Ahmad, Thorsten Steinberg, Pascal Tomakidi
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Publication number: 20150017680Abstract: 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: ApplicationFiled: March 1, 2013Publication date: January 15, 2015Inventors: Thorsten Steinberg, Ali Al-Ahmad, Karen Lienkamp, Norbert Nanko
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Publication number: 20130338326Abstract: 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: ApplicationFiled: December 22, 2011Publication date: December 19, 2013Applicants: ALBERT-LUDWIGS-UNIVERSITAET FREIBURG, UNIVERSITAETSKLINIKUM FREIBURGInventors: Thorsten Steinberg, Karen Lienkamp, Pascal Tomakidi, Ali AL-Ahmad
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Patent number: 8445611Abstract: 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: GrantFiled: April 6, 2012Date of Patent: May 21, 2013Assignee: University of MassachusettsInventors: Gregory N. Tew, Ahmad E. Madkour, Karen Lienkamp, Ashlan Marie Musante
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Publication number: 20120195849Abstract: 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: ApplicationFiled: April 6, 2012Publication date: August 2, 2012Inventors: Gregory Tew, Ahmad E. Madkour, Karen Lienkamp, Ashlan Marie Musante
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Patent number: 8153739Abstract: 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: GrantFiled: June 8, 2010Date of Patent: April 10, 2012Assignee: University of MassachusettsInventors: Gregory Tew, Ahmad E. Madkour, Karen Lienkamp, Ashlan Marie Musante
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Publication number: 20100317870Abstract: 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: ApplicationFiled: June 8, 2010Publication date: December 16, 2010Inventors: Gregory Tew, Ahmad E. Madkour, Karen Lienkamp, Ashlan Marie Musante