Patents by Inventor Michael Harold Town

Michael Harold Town 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).

  • Publication number: 20220243250
    Abstract: A method for determining a non-anticoagulant interferent in a blood-derived sample of a subject, the method comprising a) determining a value of a coagulation time-related parameter in the sample; b) comparing the value of the coagulation time-related parameter determined in a) to a value of the coagulation time-related parameter determined in at least one reference sample; and c) based on the result of comparison step b), determining the non-anticoagulant interferent in a blood-derived sample of a subject. A method for identifying a blood-derived sample having insufficient quality is further disclosed, the method comprising determining non-anticoagulant interferent(s) according to the aforesaid method.
    Type: Application
    Filed: April 14, 2022
    Publication date: August 4, 2022
    Applicant: Roche Diagnostics Operations, Inc.
    Inventors: Andrea Lichte, Michael-Harold Town
  • Publication number: 20190276872
    Abstract: A method for determining a non-anticoagulant interferent in a blood-derived sample of a subject, the method comprising a) determining a value of a coagulation time-related parameter in the sample; b) comparing the value of the coagulation time-related parameter determined in a) to a value of the coagulation time-related parameter determined in at least one reference sample; and c) based on the result of comparison step b), determining the non-anticoagulant interferent in a blood-derived sample of a subject. A method for identifying a blood-derived sample having insufficient quality is further disclosed, the method comprising determining non-anticoagulant interferent(s) according to the aforesaid method, and to devices, kits, and uses related thereto.
    Type: Application
    Filed: May 29, 2019
    Publication date: September 12, 2019
    Applicant: Roche Diagnostics Operations, Inc.
    Inventors: Andrea Lichte, Michael-Harold Town
  • Publication number: 20040052688
    Abstract: Cover for vessels to reduce the evaporation of a liquid from a vessel and/or the introduction of gases, especially carbon dioxide, into a liquid in a vessel, wherein the cover has at least one opening through which a pipette or the like can be inserted into the inside of the vessel and the cover also contains an active material or a material that can be activated, that releases moisture and/or absorbs gas or which is suitable for taking up a liquid that can release moisture or absorb gas. System for storing liquids comprising a vessel and a cover that is attached to the vessel. System comprising a vessel storage space on the opening of which a cover of the afore-mentioned type is mounted.
    Type: Application
    Filed: September 22, 2003
    Publication date: March 18, 2004
    Inventors: Enno Adema, Michael-Harold Town
  • Publication number: 20020160956
    Abstract: The invention is concerned with pharmaceutical combination preparations containing erythropoietin preparations and one or more modified haemoglobins. The combination preparations are especially useful for the treatment of manifest anaemias.
    Type: Application
    Filed: May 8, 2002
    Publication date: October 31, 2002
    Inventors: Paul Lehmann, Jurgen Feuerstein, Michael Harold Town
  • Patent number: 6440932
    Abstract: The present invention provides a pharmaceutical combination preparation comprising an erythropoietin preparation that provides active erythropoietin and at least one modified haemoglobin wherein the erythropoietin preparation and modified haemoglobin can be present in separate forms of administration or in a single form of administration. The pharmaceutical combination preparations of the present invention can be used to treat manifest anemias with or without iron utilization disorders.
    Type: Grant
    Filed: February 7, 2000
    Date of Patent: August 27, 2002
    Assignee: Roche Diagnostics GmbH
    Inventors: Paul Lehmann, Jürgen Feuerstein, Michael Harold Town
  • Patent number: 6068971
    Abstract: A process and a reagent for the determination of ions in fluids, wherein the influence of these ions on the activity of an enzyme is measured. The ions for example are sodium, potassium, calcium, magnesium, manganese, lithium, lead, zinc, copper, iron or other heavy metals or non-metallic ions comprising chloride, bicarbonate, protons, ammonium and substances that give rise to ammonium. The enzymes which are used may be a transferase, a hydrolase, an oxidoreductase or a lyase. An essential feature is a method to exclude interferences by ions by masking the interfering ions with a binding agent.
    Type: Grant
    Filed: June 22, 1992
    Date of Patent: May 30, 2000
    Assignee: Roche Diagnostics GmbH
    Inventors: Michael Nathaniel Berry, Michael-Harold Town, Georg-Burkhard Kresse, Uwe Herrmann
  • Patent number: 6013467
    Abstract: The invention concerns a method for the elimination or/and reduction of interferences which are caused by the presence of free haemoglobin in the determination of an analyte in a sample by optical measurement, wherein one or several peroxidic compounds are added to the analytical reagent or to a part thereof before the measurement. In addition a reagent kit is disclosed which contains at least one peroxidic compound.
    Type: Grant
    Filed: March 17, 1999
    Date of Patent: January 11, 2000
    Assignee: Boehringer Mannheim GmbH
    Inventors: Joachim Siedel, Michael Harold Town, Christian Birkner
  • Patent number: 5501958
    Abstract: A process and a reagent for the determination of ions in fluids, wherein the influence of these ions on the activity of an enzyme is measured. The ions for example are sodium, potassium, calcium, magnesium, manganese, lithium, lead, zinc, copper, iron or other heavy metals or non-metallic ions comprising chloride, bicarbonate, protons, ammonium and substances that give rise to ammonium. The enzymes which are used may be a transferase, a hydrolase, an oxidoreductase or a lyase. An essential feature is a method to exclude interferences by ions by masking the interfering ions with a binding agent.
    Type: Grant
    Filed: September 19, 1994
    Date of Patent: March 26, 1996
    Assignees: Boehringer Mannheim GmbH, The Flinder University of South Australia
    Inventors: Michael N. Berry, Michael-Harold Town, Georg-Burkhard Kresse, Uwe Herrmann
  • Patent number: 5409814
    Abstract: A process and a reagent for the determination of ions in fluids, wherein the influence of these ions on the activity of an enzyme is measured. The ions for example are sodium, potassium, calcium, magnesium, manganese, lithium, lead, zinc, copper, iron or other heavy metals or non-metallic ions comprising chloride, bicarbonate, protons, ammonium and substances that give rise to ammonium. The enzymes which are used may be a transferase, a hydrolase, an oxidoreductase or a lyase. An essential feature is a method to exclude interferences by ions by masking the interfering ions with a binding agent.
    Type: Grant
    Filed: June 22, 1992
    Date of Patent: April 25, 1995
    Assignees: Boehringer Mannheim GmbH, The Flinders University of South Australia
    Inventors: Michael N. Berry, Michael-Harold Town, Georg-Burkhard Kresse, Uwe Herrmann
  • Patent number: 5384247
    Abstract: A process and a reagent for the determination of ions in fluids, wherein the influence of these ions on the activity of an enzyme is measured. The ions for example are sodium, potassium, calcium, magnesium, manganese, lithium, lead, zinc, copper, iron or other heavy metals or non-metallic ions comprising chloride, bicarbonate, protons, ammonium and substances that give rise to ammonium. The enzymes which are used may be a transferase, a hydrolase, an oxidoreductase or a lyase. An essential feature is a method to exclude interferences by ions by masking the interfering ions with a binding agent.
    Type: Grant
    Filed: June 22, 1992
    Date of Patent: January 24, 1995
    Assignees: Boehringer Mannheim, GmbH, The Flinders University of South Australia
    Inventors: Michael N. Berry, Michael-Harold Town, Georg-Burkhard Kresse, Uwe Hermann
  • Patent number: 5384246
    Abstract: A process and a reagent for the determination of ions in fluids, wherein the influence of these ions on the activity of an enzyme is measured. The ions for example are sodium, potassium, calcium, magnesium, manganese, lithium, lead, zinc, copper, iron or other heavy metals or non-metallic ions comprising chloride, bicarbonate, protons, ammonium and substances that give rise to ammonium. The enzymes which are used may be a transferase, a hydrolase, an oxidoreductase or a lyase. An essential feature is a method to exclude interferences by ions by masking the interfering ions with a binding agent.
    Type: Grant
    Filed: June 22, 1992
    Date of Patent: January 24, 1995
    Assignees: Boehringer Mannheim GmbH, The Flinders University of South Australia
    Inventors: Michael N. Berry, Michael-Harold Town, Georg-Burkhard Kresse, Uwe Herrmann
  • Patent number: 5380649
    Abstract: A process and a reagent for the determination of ions in fluids, wherein the influence of these ions on the activity of an enzyme is measured. The ions for example are sodium, potassium, calcium, magnesium, manganese, lithium, lead, zinc, copper, iron or other heavy metals or non-metallic ions comprising chloride, bicarbonate, protons, ammonium and substances that give rise to ammonium. The enzymes which are used may be a transferase, a hydrolase, an oxidoreductase or a lyase. An essential feature is a method to exclude interferences by ions by masking the interfering ions with a binding agent.
    Type: Grant
    Filed: June 22, 1992
    Date of Patent: January 10, 1995
    Assignees: Boehringer Mannheim GmbH, The Flinders University of South Australia
    Inventors: Michael N. Berry, Michael-Harold Town, Georg-Burkhard Kresse, Uwe Herrmann
  • Patent number: 5196314
    Abstract: A process for the determination of substrate or enzyme activities by the use of a redox reaction as a measurement reaction is carried out in the presence of one or more additionally added tetrazolium salts to remove disturbing substances. The tetrazolium salts have the formula ##STR1## in which R.sup.1 is a hydrogen atom, a carboxyl group or an alkyl, phenyl, nitrophenyl, dinitrophenyl, carboxyl-substituted phenyl or trialkylammoniumphenyl radical, R.sup.2 is a phenyl, nitrophenyl, biphenylyl or naphthyl radical, R.sup.3 is a phenyl, carboxyl-substituted phenyl, carboxyl-substituted hydroxyphenyl or dimethylthiazolyl radical, and A.sup..crclbar. is a monovalent anion. The formazanes formed by reaction with reducing substances do not absorb light at all, or absorb light only to a negligible extent, at the measurement wavelength of the redox reaction.New compounds included within the structural formula are those in which R.sup.
    Type: Grant
    Filed: February 26, 1991
    Date of Patent: March 23, 1993
    Assignee: Boehringer Mannheim GmbH
    Inventors: Michael-Harold Town, Joachim Siedel, Joachim Ziegenhorn
  • Patent number: 5190964
    Abstract: 5-fluorocarbacyclin derivatives of the Formula I ##STR1## wherein R.sub.1 is CH.sub.2 OH orA is --CH.sub.2 --CH.sub.2 --, trans --CH.dbd.CH-- or --C.tbd.C--,W is a free or functionally modified hydroxymethylene group or free or functionally modified ##STR2## in which the OH group can be in the .alpha.-- or .beta.-position, D is ##STR3## a C.sub.1-10 -aliphatic group (e.g., alkyl or alkenyl) which optionally can be substituted by fluorine atoms,n is 1, 2 or 3,E is a direct bond, --C.tbd.C-- or --CR.sub.6 .tbd.CR.sub.7 -- in which R.sub.6 represents a hydrogen atom or an alkyl group with 1-5 atoms and R.sub.7 represents a hydrogen atom, a halogen atom or an alkyl group with 1-5 C atoms,R.sub.4 is alkyl, cycloalkyl or optionally substituted aryl or a heterocyclic group,R.sub.5 is a free or functionally modified hydroxy groupand, when R.sub.2 is a hydrogen atom, its salts with physiologically compatible bases,have valuable pharmacological properties.
    Type: Grant
    Filed: February 15, 1990
    Date of Patent: March 2, 1993
    Assignee: Schering Aktiengesellschaft
    Inventors: Werner Skuballa, Bernd Raduchel, Helmut Vorbruggen, Martin Haberey, Claus-Steffen Sturzebecher, Michael-Harold Town
  • Patent number: 5013647
    Abstract: A process for the determination of substrate or enzyme activities by the use of a redox reaction as a measurement reaction is carried out in the presence of one or more additionally added tetrazolium salts to remove disturbing substances. The tetrazolium salts have the formula ##STR1## in which R.sup.1 is a hydrogen atom, a carboxyl group or an alkyl, phenyl, nitrophenyl, dinitrophenyl, carboxyl-substituted phenyl or trialkylammoniumphenyl radical, R.sup.2 is a phenyl, nitrophenyl, biphenylyl or naphthyl radical, R.sup.3 is a phenyl, carboxyl-substituted phenyl, carboxyl-substituted hydroxyphenyl or dimethylthiazolyl radical, and A.sup..crclbar. is a monovalent anion. The formazanes formed by reaction with reducing substances do not absorb light at all, or absorb light only to a negligible extent, at the measurement wavelength of the redox reaction. New compounds included within the formula are those in which R.sup.
    Type: Grant
    Filed: April 3, 1987
    Date of Patent: May 7, 1991
    Assignee: Boehringer Mannheim GmbH
    Inventors: Michael-Harold Town, Joachim Siedel, Joachim Ziegenhorn
  • Patent number: 4961970
    Abstract: The present invention provides a process for the determination of iron in body fluids by liberation of the bound iron, reduction to Fe.sup.2+, addition of a color system appropriate for the detection of iron and photometric measurement in a tenside-containing sample solution, wherein a fatty acid polyethylene glycol ester, an alkanol polyglycol ether and at least 1 mole/liter quanidine hydrochloride are added to the sample solution. The present invention also provides a reagent for the determination of iron in serum, containing a reducing agent, a color material system appropriate for the detection of iron and guanidine hydrochloride and at least one tenside, wherein it contains a fatty acid polyethylene glycol ester and a alkanol polyglycol ether.
    Type: Grant
    Filed: August 30, 1988
    Date of Patent: October 9, 1990
    Assignee: Boehringer Mannheim GmbH
    Inventors: Joachim Siedel, Lieselotte Schellong, Johnny Staepels, Uwe Herrmann, Michael-Harold Town
  • Patent number: 4910135
    Abstract: A water-soluble peroxidase derivative obtainable by the oxidation of peroxidase with periodic acid or with a salt thereof and binding to a water-soluble polymer selected from polysaccharides, polyethylene glycols, polyvinylpyrrolidones and polyacid anhydrides. Also provided is a process for the preparation of this water-soluble peroxidase derivative and for the use of this water-soluble peroxidase derivative for the determination of hydrogen peroxide.
    Type: Grant
    Filed: November 14, 1986
    Date of Patent: March 20, 1990
    Assignee: Boehringer Mannheim GmbH
    Inventors: Wilhelm Tischer, Josef Heinle, Michael-Harold Town
  • Patent number: 4789685
    Abstract: 9-fluoroprostane derivatives of Formula I ##STR1## wherein R.sub.1 is CH.sub.2 OH or ##STR2## wherein R.sub.2 is hydrogen, alkyl, cycloalkyl, aryl, or a heterocyclic residue; or R.sub.1 is the residue ##STR3## wherein R.sub.3 is an acid residue or R.sub.2 and A is --CH.sub.2 --CH.sub.2 -- or cis--CH.dbd.CH--,B is --CH.sub.2 --CH.sub.2 --, trans--CH.dbd.CH-- or --C.tbd.C,W is a free or functionally modified hydroxymethylene group wherein the OH-group can be in the .alpha.- or .beta.- position,D and E jointly are a direct bond orD is straight-chain or branched alkylene or alkenylene of 1-10 carbon atoms which can optionally be substituted by fluorine atoms, and E is oxygen or sulfur, a direct bond, --C.tbd.C-- or --CR.sub.6 .dbd.CR.sub.7 -- wherein R.sub.6 and R.sub.7 differ from each other and each is hydrogen, chlorine, or alkyl,R.sub.4 is a free or functionally modified hydroxy group, andR.sub.5 is hydrogen, an optionally substituted aliphatic group, e.g.
    Type: Grant
    Filed: January 20, 1987
    Date of Patent: December 6, 1988
    Assignee: Schering Aktiengesellschaft
    Inventors: Werner Skuballa, Bernd Raduechel, Norbert Schwarz, Helmut Vorbrueggen, Walter Elger, Olaf Loge, Michael-Harold Town
  • Patent number: 4631276
    Abstract: Compounds of Formula I ##STR1## wherein R.sub.1 is a prostaglandin or prostacyclin residue;Y is oxygen, sulfur, imino, or N-(C.sub.1 -C.sub.4 -alkyl) imino;Q is (CR.sub.6 R.sub.7).sub.p wherein p is an integer of 0 to 3;R.sub.2 is hydrogen; alkyl of 1-6 carbon atoms optionally substituted by hydroxy or amino; C.sub.1 -C.sub.4 -alkoxycarbonyl; benzyloxycarbonyl; cyano; or di-C.sub.1 -C.sub.4 -alkylamino-carbonyl;R.sub.3, R.sub.4, R.sub.5, R.sub.6 and R.sub.7 each independently is hydrogen; alkyl of 1-6 carbon atoms optionally substituted by hydroxy or amino; or aryl; andR.sub.3 and R.sub.4 together form a trimethylene, tetramethylene, or 1,3-butadienylene group when R.sub.2 and R.sub.5 together represent a direct bond;have valuable pharmacological properties, e.g., as blood-pressure-lowering or abortive agents.
    Type: Grant
    Filed: July 3, 1984
    Date of Patent: December 23, 1986
    Assignee: Schering Aktiengesellschaft
    Inventors: Helmut Vorbruggen, Walter Elger, Michael-Harold Town, Ekkehard Schillinger
  • Patent number: 4618626
    Abstract: Carbacyclin esters of Formula I ##STR1## wherein R.sub.1 is an unsubstituted or substituted aromatic residue,R.sub.2 is a free or functionally modified hydroxy group,R.sub.3 is an alkyl or cycloalkyl group, or an optionally substituted aryl group, or a heterocyclic group,X is an oxygen atom or the group --CH.sub.2 --,A is a --CH.sub.2 --CH.sub.2 --, trans--CH.dbd.CH--, or --C.tbd.C--group,W is a free or functionally modified hydroxymethylene group or a free or functionally modified ##STR2## wherein the OH-group can be in the .alpha.- or .beta.-position D is the group ##STR3## a straight-chain saturated alkylene group of 1-5 carbon atoms, a branched, saturated or a straight-chain or branched, unsaturated alkylene group of 2-5 carbon atoms, which groups can optionally be substituted by fluorine atoms,E is a direct bond, a --C.tbd.C--group, or a --CR.sub.4 .dbd.CR.sub.5 -- group wherein R.sub.2 and R.sub.
    Type: Grant
    Filed: September 16, 1985
    Date of Patent: October 21, 1986
    Assignee: Schering Aktiengesellschaft
    Inventors: Werner Skuballa, Bernd Raduechel, Helmut Vorbrueggen, Gerda Mannesmann, Bob Nieuweboer, Michael-Harold Town