Patents by Inventor Norbert Zander
Norbert Zander 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: 8685636Abstract: The invention is in the field of coagulation diagnostics and relates to a heparin-insensitive method for determining direct coagulation factor inhibitors in a sample, in particular direct thrombin and factor Xa inhibitors.Type: GrantFiled: February 6, 2012Date of Patent: April 1, 2014Assignee: Siemens Healthcare Diagnostics Products GmbHInventors: Konrad Braun, Wolfgang Klein, Norbert Zander, Michael Timme
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Publication number: 20140088298Abstract: The present invention relates to a hydroxyalkyl starch conjugate and a method for preparing the same, said hydroxy-yalkyl starch conjugate comprising a hydroxyalkyl starch derivative and a cytotoxic agent, the cytotoxic agent comprising at least one secondary hydroxyl group, wherein the hydroxyalkyl starch is linked via said secondary hydroxyl group to the cytotoxic agent. The conjugate according to the present invention has a structure according to the following formula HAS?(-L-M)n wherein M is a residue of the cytotoxic agent, L is a linking moiety, HAS? is the residue of the hydroxyalkyl starch derivative, and n is greater than or equal to 1, and wherein the hydroxyalkyl starch derivative has a mean molecular weight (MW) above the renal threshold.Type: ApplicationFiled: July 11, 2011Publication date: March 27, 2014Applicant: Fresenius Kabi Deutschland GmbHInventors: Helmut Knoller, Dominik Heckmann, Frank Hacket, Norbert Zander, Frank Nocken, Saswata Lahiri, Nitin Gupta, Sunil Sanghani, Azim Abul, Hemant Kumar Singh, Sandeep Grewal, Sandeep Kaur
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Publication number: 20140073778Abstract: The present invention relates to hydroxyalkyl starch conjugates, a method for preparing the same, the hydroxyalkyl starch conjugate comprising a hydroxyalkyl starch derivative and a cytotoxic agent and the cytotoxic agent comprising at least one tertiary hydroxyl group, wherein the hydroxyalkyl starch is linked via said tertiary hydroxyl group to the cytotoxic agent. The conjugates according to the present invention have a structure according to the following formula HAS?(-L-M)n wherein M is a residue of the cytotoxic agent, L is a linking moiety, HAS? is the residue of the hydroxyalkyl starch derivative, and n is greater than or equal to 1, and wherein the hydroxyalkyl starch derivative has a mean molecular weight (MW) above the renal threshold.Type: ApplicationFiled: July 11, 2011Publication date: March 13, 2014Applicant: Fresenius Kabi Deutschland GmbHInventors: Helmut Knoller, Dominik Heckmann, Frank Hacket, Norbert Zander, Frank Nocken
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Publication number: 20140073779Abstract: The present invention relates to a hydroxyalkyl starch conjugate and a method for preparing the same, said hydroxyalkyl starch conjugate comprising a hydroxyalkyl starch derivative and a cytotoxic agent, the cytotoxic agent comprising at least one secondary hydroxyl group, wherein the hydroxyalkyl starch is linked via said secondary hydroxyl group to the cytotoxic agent. The conjugate according to the present invention has a structure according to the following formula HAS?(-L-M)n wherein M is a residue of the cytotoxic agent, L is a linking moiety, HAS? is the residue of the hydroxyalkyl starch derivative, and n is greater than or equal to 1, and wherein the hydroxyalkyl starch derivative has a mean molecular weight (MW) above the renal threshold.Type: ApplicationFiled: July 11, 2011Publication date: March 13, 2014Applicant: Fresenius Kabi Deutschland GmbHInventors: Helmut Knoller, Dominik Heckmann, Frank Hacket, Norbert Zander, Frank Nocken, Saswata Lahiri, Nitin Gupta, Sunil Sanghani, Azim Abul, Hemant Kumar Singh, Sandeep Grewal, Sandeep Kaur
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Patent number: 8618266Abstract: The present invention relates to hydroxyalkylstarch (HAS)-polypeptide-conjugate (HAS-polypeptide) comprising one or more HAS molecules, wherein each HAS is conjugated to the polypeptide via a carbohydrate moiety or a thioether as well as to methods for the production thereof. In a preferred embodiment, the polypeptide is erythropoietin (EPO).Type: GrantFiled: March 11, 2005Date of Patent: December 31, 2013Assignee: Fresenius Kabi Deutschland GmbHInventors: Harald S. Conradt, Eckart Grabenhorst, Manfred Nimtz, Norbert Zander, Ronald Frank, Wolfram Eichner
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Publication number: 20130217871Abstract: The present invention relates to hydroxyalkyl starch conjugates and a method for preparing the same, the hydroxyalkyl starch conjugate comprising a hydroxyalkyl starch derivative and a cytotoxic agent, the cytotoxic agent comprising at least one primary hydroxyl group, wherein the hydroxyalkyl starch is linked via said primary hydroxyl group to the cytotoxic agent. The conjugates according to the present invention have a structure according to the following formula HAS?(-L-M)n wherein M is a residue of the cytotoxic agent, L is a linking moiety, HAS? is the residue of the hydroxyalkyl starch derivative, and n is greater than or equal to 1, and wherein the hydroxyalkyl starch derivative has a mean molecular weight (MW) above the renal threshold and a molar substitution (MS) in the range of from 0.6 to 1.5.Type: ApplicationFiled: July 11, 2011Publication date: August 22, 2013Inventors: Helmut Knoller, Dominik Heckmann, Frank Hacket, Norbert Zander, Saswata Lahiri, Nitin Gupta, Vivek Kumar, Mukesh Madan Mudgal
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Publication number: 20130211060Abstract: The present invention relates to a hydroxyalkyl starch conjugate and a method for preparing the same, said hydroxy-yalkyl starch conjugate comprising a hydroxyalkyl starch derivative and a cytotoxic agent, the cytotoxic agent comprising at least one secondary hydroxyl group, wherein the hydroxyalkyl starch is linked via said secondary hydroxyl group to the cytotoxic agent. The conjugate according to the present invention has a structure according to the following formula HAS?(-L-M)n wherein M is a residue of the cytotoxic agent, L is a linking moiety, HAS? is the residue of the hydroxyalkyl starch derivative, and n is greater than or equal to 1, and wherein the hydroxyalkyl starch derivative has a mean molecular weight (MW) above the renal threshold.Type: ApplicationFiled: July 11, 2011Publication date: August 15, 2013Applicant: Fresenius Kabi Deutschland GmbHInventors: Helmut Knoller, Dominik Heckmann, Frank Hacker, Norbert Zander, Frank Nocken, Saswata Lahiri, Nitin Gupta, Sunil Sanghani, Azim Abul, Hemant Kumar Singh, Sandeep Grewal, Sandeep Kaur
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Publication number: 20130184455Abstract: The present invention relates to a hydroxyalkyl starch conjugate and a method for preparing the same, said hydroxyalkyl starch conjugate comprising a hydroxyalkyl starch derivative and a cytotoxic agent, the cytotoxic agent comprising at least one secondary hydroxyl group, wherein the hydroxyalkyl starch is linked via said secondary hydroxyl group to the cytotoxic agent. The conjugate according to the present invention has a structure according to the following formula HAS?(-L-M)n wherein M is a residue of the cytotoxic agent, L is a linking moiety, HAS? is the residue of the hydroxyalkyl starch derivative, and n is greater than or equal to 1, and wherein the hydroxyalkyl starch derivative has a mean molecular weight (MW) above the renal threshold.Type: ApplicationFiled: July 11, 2011Publication date: July 18, 2013Applicant: Fresenius Kabi Deutschland GmbHInventors: Helmut Knoller, Dominik Heckmann, Frank Hacket, Norbert Zander, Frank Nocken, Saswata Lahiri, Nitin Gupta, Sunil Sanghani, Azim Abul, Hemant Kumar Singh, Sandeep Grewal, Sandeep Kaur
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Publication number: 20130184454Abstract: The present invention relates to hydroxyalkyl starch conjugates, a method for preparing the same, the hydroxyalkyl starch conjugate comprising a hydroxyalkyl starch derivative and a cytotoxic agent and the cytotoxic agent comprising at least one tertiary hydroxyl group, wherein the hydroxyalkyl starch is linked via said tertiary hydroxyl group to the cytotoxic agent. The conjugates according to the present invention have a structure according to the following formula HAS?(-L-M)n wherein M is a residue of the cytotoxic agent, L is a linking moiety, HAS? is the residue of the hydroxyalkyl starch derivative, and n is greater than or equal to 1, and wherein the hydroxyalkyl starch derivative has a mean molecular weight (MW) above the renal threshold.Type: ApplicationFiled: July 11, 2011Publication date: July 18, 2013Applicant: Fresenius Kabi Deutschland GmbHInventors: Helmut Knoller, Dominik Heckmann, Frank Hacket, Norbert Zander, Frank Nocken
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Publication number: 20130178437Abstract: The present invention relates to hydroxyalkyl starch (HAS) conjugates and to a method for preparing the hydroxyalkyl starch (HAS) conjugates, the hydroxyalkyl starch (HAS) conjugates comprising a hydroxyalkyl starch derivative and a cytotoxic agent, said conjugate having a structure according the following formula HAS?(-M)n wherein M is a residue of a cytotoxic agent, the cytotoxic agent comprising a carbonyl group, HAS? is a residue of the hydroxyalkyl starch derivative comprising at least one functional group X, n is greater than or equal to 1, and wherein the cytotoxic agent is linked via the carbonyl function present in the cytotoxic agent to the functional group X comprised in the hydroxyalkyl starch derivative, wherein the linkage via the carbonyl function is a cleavable linkage, which is capable of being cleaved in vivo so as to release the cytotoxic agent.Type: ApplicationFiled: July 11, 2011Publication date: July 11, 2013Applicant: FRESENIUS KABI DEUTSCHLAND GMBHInventors: Helmut Knoller, Dominik Heckmann, Frank Hacket, Norbert Zander
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Patent number: 8475765Abstract: The present invention relates to a method of producing a hydroxyalkyl starch derivative comprising reacting hydroxyalkyl starch of formula (I) at its reducing end which is not oxidized prior to said reaction, with a compound of formula (II) R?NH—R? (II) wherein R1-R2 and R3 are independently hydrogen or a linear or branched hydroxyalkyl group, and wherein either R? or R? or R? and R? comprise at least one functional group X capable of being reacted with at least one other compound prior to or after the reaction of (I) and (II), as well as to the hydroxyalkyl starch derivative as such, obtainable by said method, and to a pharmaceutical composition comprising said hydroxyalkyl starch derivative.Type: GrantFiled: August 12, 2010Date of Patent: July 2, 2013Assignee: Fresenius Kabi Deutschland GmbHInventors: Norbert Zander, Harald Conradt, Wolfram Eichner
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Patent number: 8304205Abstract: The invention relates to methods for determining the activity of a proteolytic coagulation factor of the blood coagulation cascade in a body fluid such as whole blood or plasma. A combination is provided in a reaction mixture. The combination comprises the sample and an activation agent for activating a proteolytic coagulation factor of the blood coagulation cascade or for activating the blood coagulation cascade. The effect of the activating on a reagent system comprising a cleavable moiety is evaluated. The cleavable moiety is or becomes bound to a chemiluminescent agent or a sensitizer agent or both. The chemiluminescent agent and the sensitizer agent are related in that, when in close proximity, energization of the sensitizer agent results in energization of the chemiluminescent agent. The effect of the activating is related to the activity of a proteolytic coagulation factor of the blood coagulation cascade wherein the effect is the extent of cleavage of the cleavable moiety.Type: GrantFiled: September 29, 2009Date of Patent: November 6, 2012Assignee: Siemens Healthcare Diagnostics Products GmbHInventors: Andreas Kappel, Andrea Lichte, Norbert Zander, Stefan Teigelkamp, Sabine Teigelkamp, legal representative, Carsten Schelp
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Patent number: 8287850Abstract: Conjugates of hydroxyalkyl starch and a protein are provided. The conjugates are formed by a reductive amination reaction between at least one aldehyde group or keto group or hemiacetal group of the hydroxyalkyl starch or of a derivative of the hydroxyalkyl starch, and at least one amino group of the protein, so that the hydroxyalkyl starch or the derivative thereof is covalently linked to the protein via an azomethine linkage or a amino linkage. Methods of producing these conjugates and specific uses of the conjugates also are provided.Type: GrantFiled: September 8, 2006Date of Patent: October 16, 2012Assignee: Fresenius Kabi Deutschland GmbHInventors: Wolfram Eichner, Michele Orlando, Norbert Zander, Harald S. Conradt, Frank Hacket, Klaus Langer, Ronald Frank
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Publication number: 20120252044Abstract: The present invention is in the field of coagulation diagnostics and relates to a kit and method for preparing controls for use in test methods for determining thrombocyte function.Type: ApplicationFiled: March 29, 2012Publication date: October 4, 2012Applicant: SIEMENS HEALTHCARE DIAGNOSTICS PRODUCTS GMBHInventors: Andreas Rechner, Norbert Zander
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Publication number: 20120237960Abstract: The invention lies in the field of platelet function diagnostics and relates to devices and methods for determining the platelet function in a centrifugal analyzer.Type: ApplicationFiled: March 15, 2012Publication date: September 20, 2012Applicant: SIEMENS HEALTHCARE DIAGNOSTICS PRODUCTS GMBHInventors: Joerg Endermann, Andreas Rechner, Norbert Zander
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Publication number: 20120202232Abstract: The invention is in the field of coagulation diagnostics and relates to a heparin-insensitive method for determining direct coagulation factor inhibitors in a sample, in particular direct thrombin and factor Xa inhibitors.Type: ApplicationFiled: February 6, 2012Publication date: August 9, 2012Applicant: SIEMENS HEALTHCARE DIAGNOSTICS PRODUCTS GMBHInventors: Konrad Braun, Wolfgang KLEIN, Norbert Zander, Michael Timme
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Publication number: 20120190053Abstract: The present invention is in the field of in-vitro diagnostics and relates to a method of determining the blood-clotting factor XIII (factor XIII, F XIII) with the aid of plasma-based reference material, and a test kit for carrying out the method.Type: ApplicationFiled: June 17, 2010Publication date: July 26, 2012Applicant: SIEMENS HEALTHCARE DIAGNOSTICS PRODUCTS GMBHInventors: Gerlinde Christ, Andreas Kappel, Lena Pechmann, Frank Vitzhum, Norbert Zander
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Publication number: 20120156708Abstract: The present invention relates to a chromogenic method for simultaneously determining the activity of multiple coagulation proteases or for simultaneously determining the inhibition of multiple coagulation proteases in a single test reaction. For this purpose, use is made of two chromogenic substrates which have different absorption maxima and whose color signals can be separated spectrally.Type: ApplicationFiled: December 15, 2011Publication date: June 21, 2012Applicant: SIEMENS HEALTHCARE DIAGNOSTICS PRODUCTS GMBHInventor: Norbert ZANDER
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Publication number: 20120046240Abstract: The present invention relates to methods of producing hydroxyalkyl starch (HAS) derivatives having a structure according to formula (I) comprising reacting HAS of formula (I) at its optionally oxidized reducing end or a HAS derivative, obtainable by reacting HAS of formula (I) at its optionally oxidized reducing end with a compound (D) comprising at least one functional group Z1 capable of being reacted with the optionally oxidized reducing end of the HAS and at least one functional group W, with a compound (L) comprising at least one functional group Z1 capable of being reacted with said HAS, or at least one functional group Z2 capable of being reacted with functional group W comprised in said HAS derivative, and at least one functional group X capable of being reacted with a functional group Y of a further compound. The present invention further relates to HAS derivatives and pharmaceutical compositions comprising them.Type: ApplicationFiled: June 28, 2010Publication date: February 23, 2012Inventors: Norbert Zander, Harald Conradt, Wolfram Eichner
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Patent number: 8071723Abstract: The invention is in the field of coagulation diagnosis and relates to a liquid, buffer-based D-dimer composition, which additionally contains fibrinogen and which is suitable as a standard material for control or calibration purposes for D-dimer test procedures.Type: GrantFiled: May 28, 2008Date of Patent: December 6, 2011Assignee: Siemens Healthcare Diagnostics Products GmbHInventors: Sabine Pilgrim, Norbert Zander