Patents by Inventor Rolf Engstad
Rolf Engstad 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: 10646506Abstract: The present invention relates to a glucan having a weight average molar mass of 15,000 to 50,000 g/mol on a single chain basis and a weight average molar mass in aqueous solution on an aggregate basis of 4 to 20×105 g/mol and existing in gel form in aqueous solution at a concentration ?1% at 25° C. and neutral pH and having a melting temperature (gel to sol) of 30 to 44° C. when the glucan is dissolved in water at a concentration of 2%, methods for the production thereof, medical uses thereof, physical supports having the glucan applied thereto or impregnated thereon and in vitro methods of proliferation of skin cells which comprise contacting a population of skin cells with the glucan.Type: GrantFiled: November 14, 2016Date of Patent: May 12, 2020Assignee: Biotec Pharmacon AsaInventors: Rolf Engstad, Thor Nøkland
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Patent number: 9956245Abstract: The present invention relates to a gel composition comprising a glucan and a gelling agent, said composition having a melting point (gel to sol) above 37° C., as well as to the uses of this composition in therapy, in particular in wound healing.Type: GrantFiled: November 29, 2011Date of Patent: May 1, 2018Assignee: BIOTECH PHARMACON ASAInventors: Rolf Engstad, Dag-Eirik Ramsøy, Erik Steene
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Patent number: 9750688Abstract: The present invention relates to a glucan having a weight average molar mass of 15,000 to 50,000 g/mol on a single chain basis and a weight average molar mass in aqueous solution on an aggregate basis of 4 to 20×105 g/mol and existing in gel form in aqueous solution at a concentration ?1% at 25° C. and neutral pH and having a melting temperature (gel to sol) of 35 to 60° C. when the glucan is dissolved in water at a concentration of 2%, methods for the production thereof, medical uses thereof, physical supports having the glucan applied thereto or impregnated thereon and in vitro methods of proliferation of skin cells which comprise contacting a population of skin cells with the glucan.Type: GrantFiled: March 10, 2016Date of Patent: September 5, 2017Assignee: BIOTEC PHARMACON ASAInventors: Rolf Engstad, Stein-Tore Solem, Dag-Eirik Ramsøy
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Patent number: 9623043Abstract: The present invention relates to a glucan having a weight average molar mass of 15,000 to 50,000 g/mol on a single chain basis and a weight average molar mass in aqueous solution on an aggregate basis of 4 to 20×105 g/mol and existing in gel form in aqueous solution at a concentration ?1% at 25° C. and neutral pH and having a melting temperature (gel to sol) of 30 to 44° C. when the glucan is dissolved in water at a concentration of 2%, methods for the production thereof, medical uses thereof, physical supports having the glucan applied thereto or impregnated thereon and in vitro methods of proliferation of skin cells which comprise contacting a population of skin cells with the glucan.Type: GrantFiled: November 29, 2011Date of Patent: April 18, 2017Assignee: BIOTEC PHARMACON ASAInventors: Rolf Engstad, Thor Nøkland
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Publication number: 20170056433Abstract: The present invention relates to a glucan having a weight average molar mass of 15,000 to 50,000 g/mol on a single chain basis and a weight average molar mass in aqueous solution on an aggregate basis of 4 to 20×105 g/mol and existing in gel form in aqueous solution at a concentration ?1% at 25° C. and neutral pH and having a melting temperature (gel to sol) of 30 to 44° C. when the glucan is dissolved in water at a concentration of 2%, methods for the production thereof, medical uses thereof, physical supports having the glucan applied thereto or impregnated thereon and in vitro methods of proliferation of skin cells which comprise contacting a population of skin cells with the glucan.Type: ApplicationFiled: November 14, 2016Publication date: March 2, 2017Applicant: BIOTEC PHARMACON ASAInventors: Rolf ENGSTAD, Thor NØKLAND
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Publication number: 20160256385Abstract: The present invention relates to a glucan having a weight average molar mass of 15,000 to 50,000 g/mol on a single chain basis and a weight average molar mass in aqueous solution on an aggregate basis of 4 to 20×105 g/mol and existing in gel form in aqueous solution at a concentration ?1% at 25° C. and neutral pH and having a melting temperature (gel to sol) of 35 to 60° C. when the glucan is dissolved in water at a concentration of 2%, methods for the production thereof, medical uses thereof, physical supports having the glucan applied thereto or impregnated thereon and in vitro methods of proliferation of skin cells which comprise contacting a population of skin cells with the glucan.Type: ApplicationFiled: March 10, 2016Publication date: September 8, 2016Applicant: BIOTEC PHARMACON ASAInventors: Rolf Engstad, Stein-Tore Solem, Dag-Eirik Ramsøy
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Patent number: 9314432Abstract: The present invention relates to a glucan having a weight average molar mass of 15,000 to 50,000 g/mol on a single chain basis and a weight average molar mass in aqueous solution on an aggregate basis of 4 to 20×105 g/mol and existing in gel form in aqueous solution at a concentration ?1% at 25° C. and neutral pH and having a melting temperature (gel to sol) of 35 to 60° C. when the glucan is dissolved in water at a concentration of 2%, methods for the production thereof, medical uses thereof, physical supports having the glucan applied thereto or impregnated thereon and in vitro methods of proliferation of skin cells which comprise contacting a population of skin cells with the glucan.Type: GrantFiled: November 29, 2011Date of Patent: April 19, 2016Assignee: BIOTEC PHARMACON ASAInventors: Rolf Engstad, Stein-Tore Solem, Dag-Eirik Ramsøy
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Patent number: 8912165Abstract: A method of treating an ulcer comprising applying to the ulcer a preparation comprising a water-soluble ?-(1,3) glucan with ?-(1,6) linked side-chains, where the side-chains comprise ?-(1,3) linkages or up to four consecutive ?-(1,6) linkages a active ingredients.Type: GrantFiled: July 2, 2013Date of Patent: December 16, 2014Assignee: Biotec Pharmacon ASAInventors: Rolf Engstad, Rolf Seljelid
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Publication number: 20130315979Abstract: The present invention relates to a glucan having a weight average molar mass of 15,000 to 50,000 g/mol on a single chain basis and a weight average molar mass in aqueous solution on an aggregate basis of 4 to 20×105 g/mol and existing in gel form in aqueous solution at a concentration ?1% at 25° C. and neutral pH and having a melting temperature (gel to sol) of 35 to 60° C. when the glucan is dissolved in water at a concentration of 2%, methods for the production thereof, medical uses thereof, physical supports having the glucan applied thereto or impregnated thereon and in vitro methods of proliferation of skin cells which comprise contacting a population of skin cells with the glucan.Type: ApplicationFiled: November 29, 2011Publication date: November 28, 2013Applicant: Biotec Pharmacon ASAInventors: Rolf Engstad, Stein-Tore Solem, Dag-Eirik Ramsøy
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Publication number: 20130310338Abstract: The present invention relates to a glucan having a weight average molar mass of 15,000 to 50,000 g/mol on a single chain basis and a weight average molar mass in aqueous solution on an aggregate basis of 4 to 20×105 g/mol and existing in gel form in aqueous solution at a concentration ?1% at 25° C. and neutral pH and having a melting temperature (gel to sol) of 30 to 44° C. when the glucan is dissolved in water at a concentration of 2%, methods for the production thereof, medical uses thereof, physical supports having the glucan applied thereto or impregnated thereon and in vitro methods of proliferation of skin cells which comprise contacting a population of skin cells with the glucan.Type: ApplicationFiled: November 29, 2011Publication date: November 21, 2013Applicant: Biotec Pharmacon ASAInventors: Rolf Engstad, Thor Nøkland
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Publication number: 20130309286Abstract: The present invention relates to a gel composition comprising a glucan and a gelling agent, said composition having a melting point (gel to sol) above 37° C., as well as to the uses of this composition in therapy, in particular in wound healing.Type: ApplicationFiled: November 29, 2011Publication date: November 21, 2013Applicant: BIOTEC PHARMACON ASAInventors: Rolf Engstad, Dag-Eirik Ramsoy, Erik Steene
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Publication number: 20130296265Abstract: A method of treating an ulcer comprising applying to the ulcer a preparation comprising a water-soluble ?-(1,3) glucan with ?-(1,6) linked side-chains, where the side-chains comprise ?-(1,3) linkages or up to four consecutive ?-(1,6) linkages a active ingredients.Type: ApplicationFiled: July 2, 2013Publication date: November 7, 2013Inventors: Rolf Engstad, Rolf Seljelid
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Patent number: 8501710Abstract: A method of treating an ulcer comprising applying to the ulcer a preparation comprising a water-soluble ?-(1,3) glucan with ?-(1,6) linked side-chains, where the side-chains comprise ?-(1,3) linkages or up to four consecutive ?-(1,6) linkages as active ingredients.Type: GrantFiled: May 19, 2004Date of Patent: August 6, 2013Assignee: Biotec Pharmacon ASAInventors: Rolf Engstad, Rolf Seljelid
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Patent number: 8252295Abstract: ?-(1-6)-Glucanese treatment of glucan from yeast cells, pure or feed grade, especially yeast from the family Saccharomyces and particularly Saccharomyces cerevisiae, provides a novel glucan product suitable for use in enhancing the stimulation of host animal immune systems. Solubilization of such yeast cell glucan is further disclosed to extend the usefulness of yeast cell glucan as an adjuvant.Type: GrantFiled: December 27, 2010Date of Patent: August 28, 2012Inventors: Rolf Engstad, Finn Kortner, Borre Robertsen, Gunnar Rorstad
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Patent number: 8142785Abstract: ?-(1-6)-Glucanase treatment of glucan from yeast cells, pure or feed grade especially yeast from the family Saccharomyces and particularly Saccharomyces cerevisiae, provides a novel glucan product suitable for use in enhancing the stimulation of host animal immune systems. Solubilization of such yeast cell glucan is further disclosed to extend the usefulness of yeast cell glucan as an adjuvant.Type: GrantFiled: December 6, 2007Date of Patent: March 27, 2012Assignee: Biotec Pharmacon ASAInventors: Rolf Engstad, Finn Kortner, Borre Robertsen, Gunnar Rorstad
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Publication number: 20110104208Abstract: ?-(1-6)-Glucanese treatment of glucan from yeast cells, pure or feed grade, especially yeast from the family Saccharomyces and particularly Saccharomyces cerevisiae, provides a novel glucan product suitable for use in enhancing the stimulation of host animal immune systems. Solubilization of such yeast cell glucan is further disclosed to extend the usefulness of yeast cell glucan as an adjuvant.Type: ApplicationFiled: December 27, 2010Publication date: May 5, 2011Applicant: BIOTEC PHARMACON ASAInventors: Rolf Engstad, Finn Kortner, Borre Robertsen, Gunnar Rorstad
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Patent number: 7883875Abstract: A method of increasing immunostimulation in animals by administering to the animal a glucan product comprising a branched ?-(1,3) glucan with ?-(1,3)-linked side chains being attached by a ?-(1,6)-linkage and being essentially free of side chains containing more than four ?-(1,6)-bound glucose units.Type: GrantFiled: March 30, 2005Date of Patent: February 8, 2011Assignee: Biotech Pharmacon ASAInventors: Rolf Engstad, Finn Kortner, Borre Robertsen, Gunnar Rorstad
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Publication number: 20080124349Abstract: ?-(1-6)-Glucanase treatment of glucan from yeast cells, pure or feed grade especially yeast from the family Saccharomyces and particularly Saccharomyces cerevisiae, provides a novel glucan product suitable for use in enhancing the stimulation of host animal immune systems. Solubilization of such yeast cell glucan is further disclosed to extend the usefulness of yeast cell glucan as an adjuvant.Type: ApplicationFiled: December 6, 2007Publication date: May 29, 2008Applicant: AS BIOTEC-MACKZYNALInventors: Rolf Engstad, Finn Kortner, Borre Robertsen, Gunnar Rorstad
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Publication number: 20060194760Abstract: The invention relates to cosmetic preparations containing (a) water-soluble ?-(1,3) glucans, substantially devoid of ?-(1,6) links, and (b) chitosans. The agents are suitable for hair care and personal hygiene and can also be used for sun protection.Type: ApplicationFiled: April 28, 2006Publication date: August 31, 2006Applicant: Biotec ASAInventors: Ute Griesbach, Rolf Wachter, Achim Ansmann, Bernd Fabry, Wolf Eisfeld, Rolf Engstad
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Publication number: 20060079481Abstract: A method of treating and/or preventing mucositis which is an inflammation and ulceration of the mucous membranes, typically resulting from a toxic reaction to chemotherapy and/or radiotherapy by the application of water soluble immunomodulatory ?-glucan.Type: ApplicationFiled: October 8, 2004Publication date: April 13, 2006Inventor: Rolf Engstad