Patents by Inventor Klaus Sommermeyer
Klaus Sommermeyer 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: 8916518Abstract: The invention relates to a method for coupling proteins to a starch-derived modified polysaccharide. The binding interaction between the modified polysaccharide and the protein is based on a covalent bond which is the result of a coupling reaction between the terminal aldehyde group or a functional group of the modified polysaccharide molecule resulting from the chemical reaction of this aldehyde group and a functional group of the protein which reacts with the aldehyde group or with the resulting functional group of the polysaccharide molecule. The bond directly resulting from the coupling reaction can be optionally modified by a further reaction to the aforementioned covalent bond. The invention further relates to pharmaceutical compositions that comprise conjugates formed in this coupling process and to the use of conjugates and compositions for the prophylaxis or therapy of the human or animal body.Type: GrantFiled: May 28, 2009Date of Patent: December 23, 2014Assignee: Fresenius Kabi Deutschland GmbHInventors: Jurgen Hemberger, Michele Orlando, Klaus Sommermeyer, Wolfram Eichner, Sven Frie, Katharina Lutterbeck, Cornelius Jungheinrich, Roland Scharpf
-
Patent number: 8865397Abstract: For cooling organs and tissues in transplantation medicine, only ice preparations are used so far which are not soft like a gel and are brought to the necessary degree of comminution by mechanically comminuting frozen, sterile, pyrogen-free isotonic infusion solutions, such as 5% glucose or 0.9% saline, with great effort. The lack of gel-like consistency of the preparations and the expensive production process are very disadvantageous. Therefore, it was necessary to produce a cooling preparation for transplantation medicine, which in a temperature range from ?5° C. to 4° C. is gel-like and soft, transparent and sufficiently mechanically stable and yet remains formable. In accordance with the invention, such preparation can be produced from gelatin solutions in the concentration range of 3-20 wt-%, which are isotonized or adjusted to 280-650 mosmol/kg and are almost pH-neutral, by simple cooling and/or freezing.Type: GrantFiled: December 6, 2013Date of Patent: October 21, 2014Assignee: Fresenius Kabi Deutschland GmbHInventors: Bernd W. Mueller, Klaus Sommermeyer
-
Patent number: 8840879Abstract: Conjugates of hydroxyalkyl starch and a protein are provided herein. The conjugates are formed by a covalent linkage between the hydroxyalkyl starch or a derivative of the hydroxyalkyl starch and the protein. Methods of producing the conjugates and the use of the conjugates also are provided herein.Type: GrantFiled: February 1, 2011Date of Patent: September 23, 2014Assignee: Fresenius Kabi Deutschland GmbHInventors: Wolfram Eichner, Martin Schimmel, Frank Hacket, Elmar Kraus, Norbert Zander, Ronald Frank, Harald Conradt, Klaus Langer, Michele Orlando, Klaus Sommermeyer
-
Publication number: 20140093863Abstract: For cooling organs and tissues in transplantation medicine, only ice preparations are used so far which are not soft like a gel and are brought to the necessary degree of comminution by mechanically comminuting frozen, sterile, pyrogen-free isotonic infusion solutions, such as 5% glucose or 0.9% saline, with great effort. The lack of gel-like consistency of the preparations and the expensive production process are very disadvantageous. Therefore, it was necessary to produce a cooling preparation for transplantation medicine, which in a temperature range from ?5° C. to 4° C. is gel-like and soft, transparent and sufficiently mechanically stable and yet remains formable. In accordance with the invention, such preparation can be produced from gelatin solutions in the concentration range of 3-20 wt-%, which are isotonized or adjusted to 280-650 mosmol/kg and are almost pH-neutral, by simple cooling and/or freezing.Type: ApplicationFiled: December 6, 2013Publication date: April 3, 2014Applicant: Fresenius Kabi Deutschland GmbHInventors: Bernd W. Mueller, Klaus Sommermeyer
-
Publication number: 20130230898Abstract: The invention relates to a method for the preparation of a hydroxyalkyl starch derivative which comprises reacting hydroxyalkyl starch (HAS) via the optionally oxidised reducing end of the HAS with the amino group M of a crosslinking compound which, apart from the amino group, comprises a specifically protected carbonyl group, namely an acetal group or a ketal group.Type: ApplicationFiled: February 19, 2013Publication date: September 5, 2013Applicant: Fresenius Kabi Deutschland GmbHInventors: Frank Hacket, Thomas Hey, Franziska Hauschild, Helmut Knoller, Martin Schimmel, Klaus Sommermeyer
-
Patent number: 8466277Abstract: The invention relates to a method for coupling low-molecular weight substances to a starch-derived modified polysaccharide. The binding interaction between the modified polysaccharide and the low-molecular weight substance is based on a covalent bond which is the result of a coupling reaction between the terminal aldehyde group or a functional group of the modified polysaccharide molecule resulting from the chemical reaction of this aldehyde group and a functional group of the low-molecular weight substance which reacts with this aldehyde group or with the resulting functional group of the polysaccharide molecule. The bond directly resulting from the coupling reaction can be optionally modified by a further reaction to the aforementioned covalent bond. The invention further relates to pharmaceutical compositions that comprise conjugates formed in this coupling process and to the use of said conjugates and compositions for the prophylaxis or therapy of the human or animal body.Type: GrantFiled: February 28, 2003Date of Patent: June 18, 2013Assignee: Fresenius Kabi Deutschland GmbHInventors: Michele Orlando, Jurgen Hemberger, Klaus Sommermeyer, Wolfram Eichner, Sven Frie, Katharina Lutterbeck, Cornelius Jungheinrich, Roland Scharpf
-
Patent number: 8404834Abstract: The invention relates to a method for the preparation of a hydroxyalkyl starch derivative which comprises reacting hydroxyalkyl starch (HAS) via the optionally oxidized reducing end of the HAS with the amino group M of a crosslinking compound which, apart from the amino group, comprises a specifically protected carbonyl group, namely an acetal group or a ketal group.Type: GrantFiled: December 15, 2008Date of Patent: March 26, 2013Assignee: Fresenius Kabi Deutschland GmbHInventors: Frank Hacket, Thomas Hey, Franziska Hauschild, Helmut Knoller, Martin Schimmel, Klaus Sommermeyer
-
Publication number: 20120259107Abstract: The invention relates to a method for coupling low-molecular substances to a starch-derived modified polysaccharide. The binding interaction between the modified polysaccharide and the low-molecular substance is based on a covalent bond which is the result of a coupling reaction between the terminal aldehyde group or a functional group of the modified polysaccharide molecule resulting from the chemical reaction of this aldehyde group and a functional group of the low-molecular substance which reacts with this aldehyde group or with the resulting functional group of the polysaccharide molecule. The bond directly resulting from the coupling reaction can be optionally modified by a further reaction to the aforementioned covalent bond. The invention further relates to pharmaceutical compositions that comprise conjugates formed in this coupling process and to the use of said conjugates and compositions for the prophylaxis or therapy of the human or animal body.Type: ApplicationFiled: June 12, 2012Publication date: October 11, 2012Inventors: Michele Orlando, Jurgen Hemberger, Klaus Sommermeyer, Wolfram Eichner, Sven Frie, Katharina Lutterbeck, Cornelius Jungheinrich, Roland Scharpf
-
Patent number: 8017739Abstract: Conjugates of hydroxyalkyl starch and a protein are provided herein. The conjugates are formed by a convalent linkage between the hydroxyalkyl starch or a derivative of the hydroxyalkyl starch and the protein. Methods of producing the conjugates and the use of the conjugates also are provided herein.Type: GrantFiled: September 8, 2006Date of Patent: September 13, 2011Assignee: Fresenius Kabi Deutschland GmbHInventors: Wolfram Eichner, Martin Schimmel, Frank Hacket, Elmar Kraus, Norbert Zander, Ronald Frank, Harald Conradt, Klaus Langer, Michele Orlando, Klaus Sommermeyer
-
Publication number: 20110200555Abstract: Conjugates of hydroxyalkyl starch and a protein are provided herein. The conjugates are formed by a convalent linkage between the hydroxyalkyl starch or a derivative of the hydroxyalkyl starch and the protein. Methods of producing the conjugates and the use of the conjugates also are provided herein.Type: ApplicationFiled: February 1, 2011Publication date: August 18, 2011Applicant: FRESENIUS KABI DEUTSCHLAND GMBHInventors: Wolfram Eichner, Martin Schimmel, Frank Hacket, Elmar Kraus, Norbert Zander, Ronald Frank, Harald Conradt, Klaus Langer, Michele Orlando, Klaus Sommermeyer
-
Patent number: 7932377Abstract: A molecular complex of a high molecular weight carrier substance and of a medicinal substance. The carrier substance has functional groups whereby the carrier substance and the medicinal substance are bound non-covalently. The medicinal substance is insoluble or slightly soluble in water and the carrier substance is readily soluble in water. The carrier substance can be starch or a starch derivative and can have only one functional group for non-covalent binding of the medicinal substance in each molecule.Type: GrantFiled: May 28, 2004Date of Patent: April 26, 2011Assignee: Supramol Parenteral Colloids GmbHInventor: Klaus Sommermeyer
-
Publication number: 20100305033Abstract: The invention relates to a method for the preparation of a hydroxyalkyl starch derivative which comprises reacting hydroxyalkyl starch (HAS) via the optionally oxidised reducing end of the HAS with the amino group M of a crosslinking compound which, apart from the amino group, comprises a specifically protected carbonyl group, namely an acetal group or a ketal group.Type: ApplicationFiled: December 15, 2008Publication date: December 2, 2010Applicant: Fresenius Kabi Deutschland GmbHInventors: Frank Hacket, Thomas Hey, Franziska Hauschild, Helmut Knoller, Martin Schimmel, Klaus Sommermeyer
-
Publication number: 20100297599Abstract: For cooling organs and tissues in transplantation medicine, only ice preparations are used so far which are not soft like a gel and are brought to the necessary degree of comminution by mechanically comminuting frozen, sterile, pyrogen-free isotonic infusion solutions, such as 5% glucose or 0.9% saline, with great effort. The lack of gel-like consistency of the preparations and the expensive production process are very disadvantageous. Therefore, it was necessary to produce a cooling preparation for transplantation medicine, which in a temperature range from ?5° C. to 4° C. is gel-like and soft, transparent and sufficiently mechanically stable and yet remains formable. In accordance with the invention, such preparation can be produced from gelatin solutions in the concentration range of 3-20 wt-%, which are isotonized or adjusted to 280-650 mosmol/kg and are almost pH-neutral, by simple cooling and/or freezing.Type: ApplicationFiled: September 17, 2008Publication date: November 25, 2010Inventors: Bernd W. Mueller, Klaus Sommermeyer
-
Patent number: 7816516Abstract: The invention relates to compounds, comprising a conjugate of hydroxyalkyl starch (HAS) and an active agent, whereby the hydroxyalkyl starch is either directly covalently bonded to the active agent, or by means of a linker. The invention further relates to methods for the production of a covalent HAS-active agent conjugate, whereby HAS and an active agent are reacted in a reaction medium, characterised in that the reaction medium is water or a mixture of water and an organic solvent, comprising at least 10 wt. % water.Type: GrantFiled: March 15, 2002Date of Patent: October 19, 2010Assignee: Fresenius Kabi Deutschland GmbHInventors: Klaus Sommermeyer, Wolfram Eichner, Sven Frie, Cornelius Jungheinrich, Roland Scharpf, Katharina Lutterbeck, Jurgen Hemberger, Michele Orlando
-
Publication number: 20090233847Abstract: The invention relates to a method for coupling proteins to a starch-derived modified polysaccharide. The binding interaction between the modified polysaccharide and the protein is based on a covalent bond which is the result of a coupling reaction between the terminal aldehyde group or a functional group of the modified polysaccharide molecule resulting from the chemical reaction of this aldehyde group and a functional group of the protein which reacts with the aldehyde group or with the resulting functional group of the polysaccharide molecule. The bond directly resulting from the coupling reaction can be optionally modified by a further reaction to the aforementioned covalent bond. The invention further relates to pharmaceutical compositions that comprise conjugates formed in this coupling process and to the use of conjugates and compositions for the prophylaxis or therapy of the human or animal body.Type: ApplicationFiled: May 28, 2009Publication date: September 17, 2009Inventors: Jurgen Hemberger, Michele Orlando, Klaus Sommermeyer, Wolfram Eichner, Sven Frie, Katharina Lutterbeck, Cornelius Jungheinrich, Roland Scharpf
-
Patent number: 7541328Abstract: The invention relates to a method for coupling proteins to a starch-derived modified polysaccharide. The binding interaction between the modified polysaccharide and the protein is based on a covalent bond which is the result of a coupling reaction between the terminal aldehyde group or a functional group of the modified polysaccharide molecule resulting from the chemical reaction of this aldehyde group and a functional group of the protein which reacts with the aldehyde group or with the resulting functional group of the polysaccharide molecule. The bond directly resulting from the coupling reaction can be optionally modified by a further reaction to the aforementioned covalent bond. The invention further relates to pharmaceutical compositions that comprise conjugates formed in this coupling process and to the use of conjugates and compositions for the prophylaxis or therapy of the human or animal body.Type: GrantFiled: February 28, 2003Date of Patent: June 2, 2009Assignee: Fresenius Kabi Deutschland GmbHInventors: Jurgen Hemberger, Michele Orlando, Klaus Sommermeyer, Wolfram Eichner, Sven Frie, Katharina Lutterbeck, Cornelius Jungheinrich, Roland Scharpf
-
Publication number: 20090047251Abstract: Conjugates of hydroxyalkyl starch and a protein are provided herein. The conjugates are formed by a convalent linkage between the hydroxyalkyl starch or a derivative of the hydroxyalkyl starch and the protein. Methods of producing the conjugates and the use of the conjugates also are provided herein.Type: ApplicationFiled: September 8, 2006Publication date: February 19, 2009Inventors: Wolfram Eichner, Martin Schimmel, Frank Hacket, Elmar Kraus, Norbert Zander, Ronald Frank, Harald Conradt, Klaus Langer, Michele Orlando, Klaus Sommermeyer
-
Publication number: 20080274948Abstract: The present invention relates to conjugates of hydroxyalkyl starch and a granulocyte colony stimulating factor protein (G-CSF) wherein these conjugates are formed by a covalent linkage between the hydroxyalkyl starch or a derivative of the hydroxyalkyl starch and the protein. The present invention also relates to the methods of producing these conjugates and the use of these conjugates.Type: ApplicationFiled: August 6, 2004Publication date: November 6, 2008Applicant: FRESENIUS KABI DEUTSCHLAND GMBHInventors: Wolfram Eichner, Helmut Knoller, Katherina Lutterbeck, Norbert Zander, Ronald Frank, Harald Conradt, Klaus Sommermeyer, Eckard Grabenhorst
-
Publication number: 20080206182Abstract: The present invention relates to polymers functionalized by an aminooxy group or a derivative thereof, conjugates, wherein the functionalized polymers are covalently coupled with a protein by an oxime linking group, a process for preparing the functionalized polymers, a process for preparing the conjugates, functionalize polymers as obtainable by the process of the present invention, conjugates as obtainable by the process of the present invention, and pharmaceutical compositions comprising at least one conjugate of the present invention and the use of said conjugates and compositions for the prophylaxis or therapy of the human or animal body.Type: ApplicationFiled: August 6, 2004Publication date: August 28, 2008Applicant: FRESENIUS KABI DEUTSCHLAND GMBHInventors: Klaus Sommermeyer, Ronald Frank, Norbert Zander
-
Patent number: 7393841Abstract: The invention relates to the use of hyperbranched amylopectin which has an average branch degree of between >10 and 25 mol % and a molecular weight (Mw) ranging from 40.000-800.000 Dalton and the derivatives thereof in methods for surgical or therapeutic treatment of human or animal bodies or in a diagnostic method, preferably as a plasma volume expander. Plasma volume expanders based on hydroxy-ethylated amylopectin have, as a result of hydroxy ethylation, hitherto exhibited the disadvantage of incomplete metabolism and thus temporary tissue storage which is linked to side-effects. According to the invention, novel plasma expanders based on polysaccharides which do not exhibit the same disadvantages as the former are provided.Type: GrantFiled: August 6, 2002Date of Patent: July 1, 2008Assignee: Supramol Parenteral Colloids GmbHInventor: Klaus Sommermeyer