Patents by Inventor Holger Bengs

Holger Bengs 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: 7097831
    Abstract: The invention relates to foodstuff and animal feed which contain resistant starch on the basis of water-insoluble linear ?-1,4-D-glucans. The invention also related to the utilization of resistant starch on the basis of water-insoluble linear ?-1,4-D-glucans as medicaments.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: August 29, 2006
    Assignee: Südzucker Aktiengesellschaft Mannheim/Ochsenfurt
    Inventors: Holger Bengs, Anette Brunner
  • Patent number: 6929815
    Abstract: The invention relates to a process for increasing the content of ?-amylase-resistant starch (RS content) of a polysaccharide wherein the polysaccharide used is, under a water deficit, incubated, then cooled, if appropriate dried and a polysaccharide having an RS content increased compared with the polysaccharide used is obtained.
    Type: Grant
    Filed: December 9, 2000
    Date of Patent: August 16, 2005
    Assignee: Celanese Ventures GmbH
    Inventors: Holger Bengs, Gisela Jacobasch, Detlef Schmiedl
  • Patent number: 6908885
    Abstract: The invention relates to a gel based on poly-?-1,4-D-glucan and, optionally, on starch as well as on a swelling agent, to a method for the production thereof, and to the use of a gel of this type.
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: June 21, 2005
    Assignee: Suedzucker Aktiengesellschaft Mannheim/Ochsenfurt
    Inventors: Holger Bengs, Ivan Tomka, Rolf Müller
  • Publication number: 20040161830
    Abstract: Microparticles with a uniform spherical shape and a very narrow size distribution are described. They consist wholly or partly of a linear water-insoluble polysaccharide, preferably of 1,4-&agr;-D-polyglucan, and may contain other, in particular biodegradable, polymers and/or active substances. They are suitable inter alia for the controlled delivery of active substances. They are prepared by dissolving 1,4-&agr;-D-polyglucan or the polysaccharide in a solvent, introducing the solution into a precipitant, cooling the mixture and removing the particles formed.
    Type: Application
    Filed: February 6, 2004
    Publication date: August 19, 2004
    Inventors: Holger Bengs, Jurgen Grande, Arnold Schneller, Gitte Bohm
  • Patent number: 6746665
    Abstract: The present invention relates to a sun protection product which contains microparticles as the active agent, wherein the microparticles comprise water-insoluble linear polyglucan.
    Type: Grant
    Filed: February 25, 2002
    Date of Patent: June 8, 2004
    Assignee: Celanese Ventures GmbH
    Inventors: Holger Bengs, Alfred Braunagel
  • Patent number: 6736889
    Abstract: Compositions are described, based on starch and/or on modified starch and comprising, as plasticizers, polyhydroxycarboxylic acids derived from aldoses and/or from ketoses, in particular from pentoses and hexoses, or comprising lactones of these acids. The materials can be processed thermoplastically to give shaped articles which are biodegradable and physiologically nonhazardous. They may be used as packaging or casing for food or drink or pharmaceutical products, or also for the controlled release of active substances, or else for producing temporary protective coatings.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: May 18, 2004
    Assignee: Celanese Ventures GmbH
    Inventors: Holger Bengs, Jürgen Grande
  • Patent number: 6723429
    Abstract: The present invention relates to a method for preparing smooth-surface spherical microparticles which are completely or partially made of at least one water-insoluble linear polysaccharide. This method involves dissolving the at least one water-insoluble linear polysaccharide in a solvent or a mixture of solvents, introducing the solution into a precipitation agent or a mixture of precipitation agents, optionally cooling the mixture thus obtained, and separating the microparticles thus formed. The precipitation agent used consists of at least one water-soluble cellulose derivative. This invention also relates to microparticles obtained according to this method.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: April 20, 2004
    Assignee: Celanese Ventures GmbH
    Inventors: Holger Bengs, Jürgen Grande, Silke Schuth, Gitte Böhm, Arnold Schneller, Anette Brunner
  • Patent number: 6703048
    Abstract: Microparticles with a uniform spherical shape and a very narrow size distribution are described. They consist wholly or partly of a linear water-insoluble polysaccharide, preferably of 1,4-&agr;-D-polyglucan, and may contain other, in particular biodegradable, polymers and/or active substances. They are suitable inter alia for the controlled delivery of active substances. They are prepared by dissolving 1,4-&agr;-D-polyglucan or the polysaccharide in a solvent, introducing the solution into a precipitant, cooling the mixture and removing the particles formed.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: March 9, 2004
    Assignee: Celanese Ventures GmbH
    Inventors: Holger Bengs, Jürgen Grande, Arnold Schneller, Gitte Böhm
  • Patent number: 6696563
    Abstract: The invention relates to a production method of &agr;-amylase resistant polysaccharides with high RS content, comprising the following steps: a) producing a paste of water-insoluble poly-(1,4-&agr;-D-glucan) and water; b) heating the paste; c) cooling off and retrogradation of the past at a temperature that is lower than the temperature of the heated paste and d) optionally drying the resulting product.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: February 24, 2004
    Assignee: Celanese Ventures GmbH
    Inventors: Holger Bengs, Gisela Jacobasch, Detlef Schmiedl, Jörg Riesmeier, Martin Quanz, Michael Bäuerlein, Nicholas Provart
  • Publication number: 20040022732
    Abstract: The present invention relates to microparticles based on aspartic acid with marker substances covalently attached thereto for nuclear magnetic resonance methods, such as the MRI method, to use thereof as contrast agent for these methods, and to a preparation process therefor.
    Type: Application
    Filed: November 13, 2002
    Publication date: February 5, 2004
    Inventors: Rainer Zotz, Holger Bengs
  • Publication number: 20030194471
    Abstract: Compositions are described, based on starch and/or on modified starch and comprising, as plasticizers, polyhydroxycarboxylic acids derived from aldoses and/or from ketoses, in particular from pentoses and hexoses, or comprising lactones of these acids. The materials can be processed thermoplastically to give shaped articles which are biodegradable and physiologically nonhazardous. They may be used as packaging or casing for food or drink or pharmaceutical products, or also for the controlled release of active substances, or else for producing temporary protective coatings.
    Type: Application
    Filed: March 28, 2003
    Publication date: October 16, 2003
    Inventors: Holger Bengs, Jurgen Grande
  • Publication number: 20030185863
    Abstract: The invention relates to a gel based on poly-&agr;-1,4-D-glucan and, optionally, on starch as well as on a swelling agent, to a method for the production thereof, and to the use of a gel of this type.
    Type: Application
    Filed: February 19, 2003
    Publication date: October 2, 2003
    Inventors: Holger Bengs, Ivan Tomka, Rolf Muller
  • Patent number: 6616935
    Abstract: The present invention relates to the utilisation of water-insoluble linear poly-&agr;-glucan as UV filter, e.g., in sun protection products or in cosmetic as well as medical preparations. The invention also relates to a sun protection product which contains a biotechnically produced, water-insoluble linear poly-&agr;-glucan as UV filter.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: September 9, 2003
    Assignee: Celanese Ventures GmbH
    Inventors: Holger Bengs, Alfred Braunagel
  • Patent number: 6593470
    Abstract: The present invention relates to a method for the production of small spherical particles consisting totally or partly of at least one water-insoluble linear polysaccharide by dissolving the at least one water-insoluble polysaccharide in a solvent or a solvent mixture, introducing the solution into a precipitating agent or a precipitating agent mixture, optionally cooling the mixture thus obtained and separating the formed small particles, wherein at least one poly alpha D-glucan soluble in hot water is used as auxiliary agent for precipitation. The invention also relates to the particles obtained according to said method.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: July 15, 2003
    Assignee: Celanese Ventures GmbH
    Inventors: Holger Bengs, Jürgen Grande
  • Patent number: 6592897
    Abstract: The invention relates to a controlled release tablet which in part or as a whole contains water-insoluble linear polysaccharides, preferably the polysaccharide poly(1,4-&agr;-D-glucan), in the form of microparticles, as retardation material. The tablet is also capable of controllably releasing an active agent.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: July 15, 2003
    Assignee: Axiva GmbH
    Inventors: Holger Bengs, Silke Schuth, Jürgen Grande, Gitte Böhm, Arnold Schneller
  • Publication number: 20030094172
    Abstract: The invention relates to a process for increasing the content of &agr;-amylase-resistant starch (RS content) of a polysaccharide wherein
    Type: Application
    Filed: October 25, 2002
    Publication date: May 22, 2003
    Inventors: Holger Bengs, Gisela Jacobasch, Detlef Schmiedl
  • Patent number: 6565640
    Abstract: Compositions are described, based on starch and/or on modified starch and comprising, as plasticizers, polyhydroxycarboxylic acids derived from aldoses and/or from ketoses, in particular from pentoses and hexoses, or comprising lactones of these acids such as &dgr;-caprolactone. The materials can be processed thermoplastically to give shaped articles which are biodegradable and physiologically nonhazardous. They may be used as packaging or casing for food or drink or pharmaceutical products, or also for the controlled release of active substances, or else for producing temporary protective coatings.
    Type: Grant
    Filed: March 20, 2000
    Date of Patent: May 20, 2003
    Assignee: Celanese Ventures GmbH
    Inventors: Holger Bengs, Jürgen Grande
  • Patent number: 6562459
    Abstract: The invention relates to a method for the production of spherical microparticles consisting totally or partly of at least one water-insoluble polysaccharide, wherein the at least one water-insoluble polysaccharide is dissolved in a solvent or solvent mixture, the solution thus formed is introduced into a precipitating agent or precipitating agent mixture, the mixture obtained is optionally cooled and the formed microparticles are separated. The invention is characterized in that the water-insoluble polysaccharide is selected from a polyglucan containing branches with a degree of branching higher than zero and no higher than 8% and a mixture of a polyglucan containing branches and a linear polysaccharide, wherein the proportion of polyglucan containing branches in the mixture is at the most 30% by weight in relation to the overall weight of the polysaccharide and the polyglucan.
    Type: Grant
    Filed: June 7, 2001
    Date of Patent: May 13, 2003
    Assignee: Celanese Ventures GmbH
    Inventors: Holger Bengs, Jürgen Grande
  • Patent number: 6548075
    Abstract: The present invention relates to a topical preparation containing spherical microparticles as the essential component, wherein the microparticles comprise water-insoluble linear polyglucan.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: April 15, 2003
    Assignee: Celanese Ventures GmbH
    Inventors: Holger Bengs, Arnold Schneller, Jürgen Grande, Silke Schuth, Gitte Böhm, Alfred Braunagel
  • Publication number: 20030004332
    Abstract: The invention relates to a production method of &agr;-amylase resistant polysaccharides with high RS content, comprising the following steps: a) producing a paste of water-insoluble poly-(1,4-&agr;-D-glucan) and water; b) heating the paste; c) cooling off and retrogradation of the past at a temperature that is lower than the temperature of the heated paste and d) optionally drying the resulting product.
    Type: Application
    Filed: December 21, 2000
    Publication date: January 2, 2003
    Inventors: Holger Bengs, Gisela Jacobasch, Detlef Schmiedl, Jorg Riesmeier, Martin Quanz, Michael Bauerlein, Nicholas Provart