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).

  • Patent number: 10646506
    Abstract: 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: Grant
    Filed: November 14, 2016
    Date of Patent: May 12, 2020
    Assignee: Biotec Pharmacon Asa
    Inventors: Rolf Engstad, Thor Nøkland
  • Patent number: 9956245
    Abstract: 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: Grant
    Filed: November 29, 2011
    Date of Patent: May 1, 2018
    Assignee: BIOTECH PHARMACON ASA
    Inventors: Rolf Engstad, Dag-Eirik Ramsøy, Erik Steene
  • Patent number: 9750688
    Abstract: 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: Grant
    Filed: March 10, 2016
    Date of Patent: September 5, 2017
    Assignee: BIOTEC PHARMACON ASA
    Inventors: Rolf Engstad, Stein-Tore Solem, Dag-Eirik Ramsøy
  • Patent number: 9623043
    Abstract: 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: Grant
    Filed: November 29, 2011
    Date of Patent: April 18, 2017
    Assignee: BIOTEC PHARMACON ASA
    Inventors: Rolf Engstad, Thor Nøkland
  • Publication number: 20170056433
    Abstract: 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: Application
    Filed: November 14, 2016
    Publication date: March 2, 2017
    Applicant: BIOTEC PHARMACON ASA
    Inventors: Rolf ENGSTAD, Thor NØKLAND
  • Publication number: 20160256385
    Abstract: 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: Application
    Filed: March 10, 2016
    Publication date: September 8, 2016
    Applicant: BIOTEC PHARMACON ASA
    Inventors: Rolf Engstad, Stein-Tore Solem, Dag-Eirik Ramsøy
  • Patent number: 9314432
    Abstract: 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: Grant
    Filed: November 29, 2011
    Date of Patent: April 19, 2016
    Assignee: BIOTEC PHARMACON ASA
    Inventors: Rolf Engstad, Stein-Tore Solem, Dag-Eirik Ramsøy
  • Patent number: 8912165
    Abstract: 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: Grant
    Filed: July 2, 2013
    Date of Patent: December 16, 2014
    Assignee: Biotec Pharmacon ASA
    Inventors: Rolf Engstad, Rolf Seljelid
  • Publication number: 20130315979
    Abstract: 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: Application
    Filed: November 29, 2011
    Publication date: November 28, 2013
    Applicant: Biotec Pharmacon ASA
    Inventors: Rolf Engstad, Stein-Tore Solem, Dag-Eirik Ramsøy
  • Publication number: 20130310338
    Abstract: 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: Application
    Filed: November 29, 2011
    Publication date: November 21, 2013
    Applicant: Biotec Pharmacon ASA
    Inventors: Rolf Engstad, Thor Nøkland
  • Publication number: 20130309286
    Abstract: 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: Application
    Filed: November 29, 2011
    Publication date: November 21, 2013
    Applicant: BIOTEC PHARMACON ASA
    Inventors: Rolf Engstad, Dag-Eirik Ramsoy, Erik Steene
  • Publication number: 20130296265
    Abstract: 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: Application
    Filed: July 2, 2013
    Publication date: November 7, 2013
    Inventors: Rolf Engstad, Rolf Seljelid
  • Patent number: 8501710
    Abstract: 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: Grant
    Filed: May 19, 2004
    Date of Patent: August 6, 2013
    Assignee: Biotec Pharmacon ASA
    Inventors: Rolf Engstad, Rolf Seljelid
  • Patent number: 8252295
    Abstract: ?-(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: Grant
    Filed: December 27, 2010
    Date of Patent: August 28, 2012
    Inventors: Rolf Engstad, Finn Kortner, Borre Robertsen, Gunnar Rorstad
  • Patent number: 8142785
    Abstract: ?-(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: Grant
    Filed: December 6, 2007
    Date of Patent: March 27, 2012
    Assignee: Biotec Pharmacon ASA
    Inventors: Rolf Engstad, Finn Kortner, Borre Robertsen, Gunnar Rorstad
  • Publication number: 20110104208
    Abstract: ?-(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: Application
    Filed: December 27, 2010
    Publication date: May 5, 2011
    Applicant: BIOTEC PHARMACON ASA
    Inventors: Rolf Engstad, Finn Kortner, Borre Robertsen, Gunnar Rorstad
  • Patent number: 7883875
    Abstract: 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: Grant
    Filed: March 30, 2005
    Date of Patent: February 8, 2011
    Assignee: Biotech Pharmacon ASA
    Inventors: Rolf Engstad, Finn Kortner, Borre Robertsen, Gunnar Rorstad
  • Publication number: 20080124349
    Abstract: ?-(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: Application
    Filed: December 6, 2007
    Publication date: May 29, 2008
    Applicant: AS BIOTEC-MACKZYNAL
    Inventors: Rolf Engstad, Finn Kortner, Borre Robertsen, Gunnar Rorstad
  • Publication number: 20060194760
    Abstract: 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: Application
    Filed: April 28, 2006
    Publication date: August 31, 2006
    Applicant: Biotec ASA
    Inventors: Ute Griesbach, Rolf Wachter, Achim Ansmann, Bernd Fabry, Wolf Eisfeld, Rolf Engstad
  • Publication number: 20060079481
    Abstract: 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: Application
    Filed: October 8, 2004
    Publication date: April 13, 2006
    Inventor: Rolf Engstad