Patents by Inventor Imre Toth

Imre Toth 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: 10968224
    Abstract: The one subject of the invention is the compounds of general formula (I), their isomers, their physiologically acceptable salts and/or Mn(II), Fe(II), Fe(III), Co(II) and Ni(II) complexes. The other subject of the invention is the application of the above compounds.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: April 6, 2021
    Assignee: DEBRECENI EGYETEM
    Inventors: Richárd Botár, Zoltán Garda, Tamás Fodor, Ferenc Krisztián Kálmán, Viktória Nagy, Gyula Tircsó, Imre Tóth
  • Patent number: 10894096
    Abstract: A compound of the following general formula (I), and isomers, physiologically acceptable salts, and complexes thereof, for use as a contrast agent in diagnostic imaging:
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: January 19, 2021
    Assignee: DEBRECENI EGYETEM
    Inventors: Richárd Botár, Zoltán Garda, Tamás Fodor, Ferenc Krisztián Kálmán, Viktória Nagy, Gyula Tircsó, Imre Tóth
  • Publication number: 20200157099
    Abstract: A compound of the following general formula (I), and isomers, physiologically acceptable salts, and complexes thereof, for use as a contrast agent in diagnostic imaging:
    Type: Application
    Filed: January 7, 2020
    Publication date: May 21, 2020
    Applicant: DEBRECENI EGYETEM
    Inventors: Richárd BOTÁR, Zoltán GARDA, Tamás FODOR, Ferenc Krisztián KÁLMÁN, Viktória NAGY, Gyula TIRCSÓ, Imre TÓTH
  • Patent number: 10568976
    Abstract: A compound of the following general formula (I), and isomers, physiologically acceptable salts, and complexes thereof, for use as a contrast agent in diagnostic imaging:
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: February 25, 2020
    Assignee: DEBRECENI EGYETEM
    Inventors: Richárd Botár, Zoltán Garda, Tamás Fodor, Ferenc Krisztián Kálmán, Viktória Nagy, Gyula Tircsó, Imre Tóth
  • Patent number: 10494379
    Abstract: The one subject of the invention is the compounds of general formula (I), their isomers, their physiologically acceptable salts and/or Mn(II), Fe(II), Fe(III), Co(II) and Ni(II) complexes and their application: where R1|=—OH or —NR3R4 amide functionality.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: December 3, 2019
    Inventors: Richárd Botár, Zoltán Garda, Tamás Fodor, Ferenc Krisztián Kálmán, Viktória Nagy, Gyula Tircsó, Imre Tóth
  • Patent number: 10265422
    Abstract: The present invention relates to novel substituted ethylenediaminetetraacetic acid bisamide derivatives, their complexes with Mn(II) ion and the use thereof as contrast agents for Magnetic Resonance Imaging (MRI) analysis.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: April 23, 2019
    Assignee: Bracco Imaging S.P.A.
    Inventors: Zsolt Baranyai, Zoltán Garda, Simona Ghiani, Ferenc Krisztián Kálmán, László Krusper, Alessandro Maiocchi, Gyula Tircsó, Imre Toth
  • Publication number: 20180354969
    Abstract: The one subject of the invention is the compounds of general formula (I), their isomers, their physiologically acceptable salts and/or Mn(ll), Fe(ll), Fe(lll), Co(ll) and Ni(ll) complexes and their application: where R1|=—OH or —NR3R4 amide functionality
    Type: Application
    Filed: November 25, 2016
    Publication date: December 13, 2018
    Applicant: DEBRECENI EGYETEM
    Inventors: Richárd BOTÁR, Zoltán GARDA, Tamás FODOR, Ferenc Krisztián KÁLMÁN, Viktória NAGY, Gyula TIRCSÓ, Imre TÓTH
  • Publication number: 20180344883
    Abstract: The one subject of the invention is the compounds of general formula (I), their isomers, their physiologically acceptable salts and/or Mn(II), Fe(II), Fe(III), Co(II) and Ni(II) complexes. The other subject of the invention is the application of the above compounds.
    Type: Application
    Filed: November 25, 2016
    Publication date: December 6, 2018
    Applicant: DEBRECENI EGYETEM
    Inventors: Richárd BOTÁR, Zoltán GARDA, Tamás FODOR, Ferenc Krisztián KÁLMÁN, Viktória NAGY, Gyula TIRCSÓ, Imre TÓTH
  • Publication number: 20180282333
    Abstract: The one subject of the invention is the compounds of general formula (I), their isomers, their physiologically acceptable salts and/or Mn(II), Fe(II), Fe(III), Co(II) and Ni(II) complexes. The other subject of the invention is the application of the above compounds.
    Type: Application
    Filed: November 25, 2016
    Publication date: October 4, 2018
    Applicant: DEBRECENI EGYETEM
    Inventors: Richárd BOTÁR, Zoltán GARDA, Tamás FODOR, Ferenc Krisztián KÁLMÁN, Viktória NAGY, Gyula TIRCSÓ, Imre TÓTH
  • Publication number: 20180036436
    Abstract: The present invention relates to novel substituted ethylenediaminetetraacetic acid bisamide derivatives, their complexes with Mn(II) ion and the use thereof as contrast agents for Magnetic Resonance Imaging (MRI) analysis.
    Type: Application
    Filed: February 25, 2016
    Publication date: February 8, 2018
    Applicant: Bracco Imaging S.p.A.
    Inventors: Zsolt BARANYAI, Zoltán GARDA, Simona GHIANI, Ferenc Krisztián KÁLMÁN, László KRUSPER, Alessandro MAIOCCHI, Gyula TIRCSÓ, Imre TOTH
  • Patent number: 7956221
    Abstract: The present invention relates to a process for decomposing cyclohexylhydroperoxide into cyclohexanone, said process comprising mixing an organic feed solution comprising cyclohexylhydroperoxide with an aqueous base solution in the absence of a transition metal catalyst resulting in a mixture comprising (i) an aqueous phase and (ii) an organic phase comprising cyclohexanone and cyclohexanol.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: June 7, 2011
    Assignee: DSM IP Assets B.V.
    Inventor: Imre Toth
  • Patent number: 7820849
    Abstract: A process is provided, in particular a continuous process for the carbonylation of butadiene by reacting the butadiene with carbon monoxide and a hydroxyl group-containing compound in the presence of a palladium catalyst system in a reaction zone to form a reaction mixture, said catalyst system comprising (a) a source of palladium cations, (b) a mono-, bi- or multidentate phosphine ligand, containing at least one phosphorus atom which is directly bound to two or three aliphatic carbon atoms, as process ligand to produce a palladium-phosphine ligand complex catalyst, and (c) a source of anions, said process ligand (b) containing the moiety shown in formula (I), wherein A1 and A2 each represent an aliphatic carbon atom which can be connected to one or more aliphatic or aromatic carbon atoms or both A1 and A2 are part of an at least 5-membered ring including the phosphorus atom, and X represents an aliphatic or aromatic carbon atom which can be connected to one or more aliphatic or aromatic carbon atoms or X
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: October 26, 2010
    Assignee: DSM IP Assets B.V.
    Inventors: Otto Erik Sielcken, Imre Toth, Henricus Anna Christiaan Baur
  • Publication number: 20100137645
    Abstract: The present invention relates to a process for decomposing cyclohexylhydroperoxide into cyclohexanone, said process comprising mixing an organic feed solution comprising cyclohexylhydroperoxide with an aqueous base solution in the absence of a transition metal catalyst resulting in a mixture comprising (i) an aqueous phase and (ii) an organic phase comprising cyclohexanone and cyclohexanol.
    Type: Application
    Filed: December 16, 2005
    Publication date: June 3, 2010
    Inventor: Imre Toth
  • Publication number: 20080171189
    Abstract: The invention relates to a system for detecting the defects of a wall used for enclosing a space where—generally liquid—materials are stored, with a coating on its internal side, especially a container wall, or/and the defects in the coating. In numerous fields of life all types of different materials, such as chemicals, solvents, petroleum oil and petroleum fractions, etc. need to be stored in a way excluding the possibility of these materials getting into the environment or other materials from the environment intermixing with the stored materials. In most cases such materials are stored in containers made of different materials, mostly metal, the walls of which holes may appear either as a result of corrosion or other damage, and through the appearing holes materials can flow either from outside into the container or from inside the container into the environment, and so the stored material may become unsuitable for use or serious environmental pollution may occur.
    Type: Application
    Filed: November 29, 2005
    Publication date: July 17, 2008
    Inventors: Laszlo Varga, Laszlo Kalafszky, Imre Toth
  • Publication number: 20070155984
    Abstract: A process is provided, in particular a continuous process for the carbonylation of butadiene by reacting the butadiene with carbon monoxide and a hydroxyl group-containing compound in the presence of a palladium catalyst system in a reaction zone to form a reaction mixture, said catalyst system comprising (a) a source of palladium cations, (b) a mono-, bi- or multidentate phosphine ligand, containing at least one phosphorus atom which is directly bound to two or three aliphatic carbon atoms, as process ligand to produce a palladium-phosphine ligand complex catalyst, and (c) a source of anions, said process ligand (b) containing the moiety shown in formula (I), wherein A1 and A2 each represent an aliphatic carbon atom which can be connected to one or more aliphatic or aromatic carbon atoms or both A1 and A2 are part of an at least 5-membered ring including the phosphorus atom, and X represents an aliphatic or aromatic carbon atom which can be connected to one or more aliphatic or aromatic carbon atoms or
    Type: Application
    Filed: June 28, 2004
    Publication date: July 5, 2007
    Applicant: DSM IP ASSETS B.V.
    Inventors: Otto Sielcken, Imre Toth, Henricus Anna Baur
  • Patent number: 7102033
    Abstract: A continuous hydroformylation process for producing an aldehyde comprising 1) reacting an olefinically unsaturated compound, carbon monoxide and hydrogen in the presence of a rhodium-organobisphosphite complex catalyst at a partial pressure of carbon monoxide and hydrogen, and 2) exposing a mixture comprising at least a portion of the catalyst of 1) to a gaseous mixture comprising hydrogen at a pressure that is greater than the partial pressure of carbon monoxide and hydrogen during the reaction.
    Type: Grant
    Filed: April 11, 2002
    Date of Patent: September 5, 2006
    Assignee: DSM IP Assets B.V.
    Inventors: Otto Erik Sielcken, Hubertus Adrianus Smits, Imre Toth
  • Patent number: 7087797
    Abstract: A continuous hydroformylation process for forming an aldehyde comprising 1) reacting an olefinically unsaturated compound containing from 2 to 30 carbon atoms with carbon monoxide and hydrogen in the presence of a rhodium-bisphosphite ligand complex catalyst and 2) distilling a mixture comprising at least a part of the catalyst of 1), wherein the distilling is performed in the substantial absence of molecular hydrogen.
    Type: Grant
    Filed: April 11, 2002
    Date of Patent: August 8, 2006
    Assignee: DSM IP Assets B.V.
    Inventors: Otto Erik Sielcken, Hubertus Adrianus Smits, Imre Toth
  • Publication number: 20060052644
    Abstract: A continuous hydroformylation process for producing an aldehyde comprising 1) reacting an olefinically unsaturated compound, carbon monoxide and hydrogen in the presence of a rhodium-organobisphosphite complex catalyst at a partial pressure of carbon monoxide and hydrogen, and 2) exposing a mixture comprising at least a portion of the catalyst of 1) to a gaseous mixture comprising hydrogen at a pressure that is greater than the partial pressure of carbon monoxide and hydrogen during the reaction.
    Type: Application
    Filed: April 11, 2002
    Publication date: March 9, 2006
    Inventors: Otto Sielcken, Hubertus Smits, Imre Toth
  • Patent number: 6835850
    Abstract: Process for the carbonylation of a conjugated diene by reacting the conjugated diene with carbon monoxide and an hydroxyl group containing compound in the presence of a catalyst system based on: (a) a source of palladium cations, (b) a diphosphine ligand, and (c) a source of anions, wherein the diphosphine ligand is a ligand having the general formula I wherein x1 and x2 represent a cyclic group with at least 5 ring atoms, of which one is a phosphorus atom, and R represents a bivalent aliphatic bridging group, connecting both phosphorus atoms, containing from 2 to 4 atoms in the bridge, which is substituted with at least one substituent or R represents a phenyl group with both phosphorus groups bound to the 1,2-position.
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: December 28, 2004
    Assignee: DSW IP Assets B.V.
    Inventors: Eit Drent, Willem Wabe Jager, Otto Erik Sielcken, Imre Toth
  • Publication number: 20040152924
    Abstract: A continuous hydroformylation process for forming an aldehyde comprising 1) reacting an olefinically unsaturated compound containing from 2 to 30 carbon atoms with carbon monoxide and hydrogen in the presence of a rhodium-bisphosphite ligand complex catalyst and 2) distilling a mixture comprising at least a part of the catalyst of 1), wherein the distilling is performed in the substantial absence of molecular hydrogen
    Type: Application
    Filed: March 31, 2004
    Publication date: August 5, 2004
    Inventors: Otto Erik Sielcken, Hubertus Adrianus Smits, Imre Toth