Patents by Inventor Dieter Heldmann

Dieter Heldmann 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: 20210292483
    Abstract: Crosslinkable silicone resins of high molecular weight are produced in a multistep process by reacting a mixture of at least two different silicone resin intermediates (A) composed of units of the formula Ra(OR1)bO(4-a-b)/2 (1), having a molecular weight Mw of 600 to 2500 to an extent such groups OR1 are reduced by at least 5% resulting alcohol is preferably removed by distillation to obtain silicone resins having a molecular weight Mw between 2500 and 10,000 g/mol, and then the silicone resins are further condensed with polyhydric alcohols in the presence of water to obtain silicone resins having a molecular weight Mw of 5000 to 50,000 g/mol.
    Type: Application
    Filed: November 27, 2017
    Publication date: September 23, 2021
    Applicant: WACKER CHEMIE AG
    Inventors: Frank SANDMEYER, Dieter HELDMANN
  • Patent number: 8846808
    Abstract: Crosslinkable compositions containing an alkoxy-functional polyorganosiloxane and a titanium chelate complex exhibit good moisture-curing properties and produce coatings resistant to temperature ramp extremes.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: September 30, 2014
    Assignee: Wacker Chemie AG
    Inventor: Dieter Heldmann
  • Publication number: 20130178581
    Abstract: Crosslinkable compositions containing an alkoxy-functional polyorganosiloxane and a titanium chelate complex exhibit good moisture-curing properties and produce coatings resistant to temperature ramp extremes.
    Type: Application
    Filed: September 15, 2011
    Publication date: July 11, 2013
    Applicant: WACKER CHEMIE AG
    Inventor: Dieter Heldmann
  • Publication number: 20110190246
    Abstract: The present invention is directed to novel pyrazolo-estrien and triazolo-estrien-derivatives, pharmaceutical compositions containing them and their use in the treatment or prevention of disorders and diseases mediated by an estrogen receptor such as hot flashes, vaginal dryness, osteopenia, osteoporosis, hyperlipidemia, loss of cognitive function, degenerative brain diseases, cardiovascular diseases, cerebrovascular diseases, hormone sensitive cancers and hyperplasia (in tissues including breast, endometrium, and cervix in women and prostate in men), endometriosis, uterine fibroids, osteoarthritis; and as contraceptive agents either alone or in combination with a progestogen or progestogen antagonist. The compounds of the invention are selective estrogen receptor modulators.
    Type: Application
    Filed: July 14, 2009
    Publication date: August 4, 2011
    Applicant: Bayer Schering Pharma Aktiengesellschaft
    Inventors: Thorsten Blume, Dieter Heldmann, Norbert Schmees, Christiane Otto, Tim Wintermantel, Joachim Kuhnke
  • Publication number: 20070032694
    Abstract: The invention relates to radioactive stents, characterized in that the stent is coated on the surface with the radioactive isotope, as well as processes for their production.
    Type: Application
    Filed: November 24, 2003
    Publication date: February 8, 2007
    Inventors: Ludger Dinkelborg, Friedhelm Blume, Christoph-Stephan Hilger, Dieter Heldmann, Johannes Platzek, Ulrich Niedballa, Heribert Miklautz, Ulrich Speck, Stephan Duda, Gunnar Tepe, Bernhard Noll, Heidemarie Goerner
  • Patent number: 7081537
    Abstract: A process for preparing ?-functionalized thiazolidines or oxazolidines, each of which are oxycarbonyl-functionalized in the 4-position, by adding a base to a reaction mixture comprising an oxycarbonyl-functionalized thiazolidine or oxazolidine and an electrophile at a temperature of greater than ?40° C.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: July 25, 2006
    Assignee: Consortium für elektrochemische Industrie GmbH
    Inventors: Dieter Heldmann, Jürgen Stohrer
  • Publication number: 20060030732
    Abstract: Preparation of ?-substituted cysteine derivatives takes place by acidic hydrolysis of thiazolidines, wherein the hydrolysis is effected in the presence of a further phase comprising an organic solvent and a vapor comprising water, acid, organic solvent and aldehyde is removed from the reaction mixture, or a vapor comprising water, acid and aldehyde is removed from the reaction mixture and the vapor or its condensate is subsequently contacted with a phase comprising an organic solvent. The process requires less hydrolysis time and allows for recycle and/or recovery of acid and by product aldehyde.
    Type: Application
    Filed: July 27, 2005
    Publication date: February 9, 2006
    Applicant: Consortium fur elektrochemische Industrie GmbH
    Inventors: Dieter Heldmann, Juergen Stohrer
  • Publication number: 20050112690
    Abstract: This invention relates to the use of labeled L19 derivatives for the production of a pharmaceutical composition for detection of arteriosclerotic plaque.
    Type: Application
    Filed: October 18, 2004
    Publication date: May 26, 2005
    Inventor: Dieter Heldmann
  • Patent number: 6881855
    Abstract: Silanes of the formula Ra1R4-a-xSiLx??(I) where each R is identical or different and is a monovalent, optionally substituted hydrocarbon radical which is free of aliphatic carbon—carbon multiple bonds and has from 1 to 18 carbon atoms per radical, R1 is an optionally substituted 2-norbornyl radical, L is a leaving group, a is 1, 2 or 3 and x is 1 or 2, with the proviso that the sum of a+x?4, are useful for protecting functional groups of organic compounds (2) which have at least one functional group having an active hydrogen atom, preferably as a hydroxyl group —OH, a thiol groups —SH, an amine group —NH— or —NH2, a carboxyl group —COOH, or an amide group —CONH— or —CONH2.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: April 19, 2005
    Assignee: Consortium fur Elektrochemische Industrie GmbH
    Inventors: Dieter Heldmann, Oliver Schaefer, Juergen Stohrer
  • Publication number: 20040171840
    Abstract: A process for preparing &agr;-functionalized thiazolidines or oxazolidines, each of which are oxycarbonyl-functionalized in the 4-position, by adding a base to a reaction mixture comprising an oxycarbonyl-functionalized thiazolidine or oxazolidine and an electrophile at a temperature of greater than −40° C.
    Type: Application
    Filed: February 24, 2004
    Publication date: September 2, 2004
    Applicant: Consortium fur Elektrochemische Industrie GmbH
    Inventors: Dieter Heldmann, Jurgen Stohrer
  • Patent number: 6709693
    Abstract: The invention relates to radioactive stents, characterized in that the stent is coated on the surface with the radioactive isotope, as well as processes for their production.
    Type: Grant
    Filed: July 27, 2000
    Date of Patent: March 23, 2004
    Assignee: Schering Aktiengesellschaft
    Inventors: Ludger Dinkelborg, Friedhelm Blume, Christoph-Stephan Hilger, Dieter Heldmann, Johannes Platzek, Ulrich Niedballa, Heribert Miklautz, Ulrich Speck, Stephan Duda, Gunnar Tepe, Bernhard Noll, Heidemarie Goerner
  • Patent number: 6667422
    Abstract: A process for preparing an &agr;-haloketone of the formula (1) where R1 is an optionally heteroatom-containing and optionally substituted hydrocarbon radical, R2 is a hydrogen, alkyl, aralkyl or aryl radical, and X is a halogen radical, by reacting a carboxylic acid derivative of the general formula (2) where L is a leaving group, with a mono- or dienolate of a silyl ester of the formula (3) where R3 and R4 are identical or different alkyl, aryl, alkenyl or aralkyl radicals; and hydrolyzing the reaction product immediately afterwards by adding acid and decarboxylating to (1). The product &agr;-haloketone may be reduced to the corresponding &agr;-haloalcohol.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: December 23, 2003
    Assignee: Consortium fuer Elektrochemische Industrie GmbH
    Inventors: Dieter Heldmann, Juergen Stohrer
  • Publication number: 20030097015
    Abstract: Silanes of the formula
    Type: Application
    Filed: September 26, 2002
    Publication date: May 22, 2003
    Applicant: Consortium fur elektrochemische Industrie GmbH
    Inventors: Dieter Heldmann, Oliver Schaefer, Juergen Stohrer
  • Publication number: 20030060666
    Abstract: A process for preparing an &agr;-haloketone of the formula (1) 1
    Type: Application
    Filed: September 3, 2002
    Publication date: March 27, 2003
    Inventors: Dieter Heldmann, Juergen Stohrer
  • Patent number: 6488909
    Abstract: New chelating agents as well as their tricarbonyl complexes with technetium and rhenium and the use of these compounds in radiodiagnosis and radiotherapy are described. The new chelating agents are coupled to substances that accumulate in the diseased tissue.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: December 3, 2002
    Assignee: Schering Aktiengesellschaft
    Inventors: Stephan Hilger, Ludger Dinkelborg, Dieter Heldmann, Friedhelm Blume, Dietmar Berndorff
  • Patent number: 6436365
    Abstract: The invention relates to a process for therapeutic treatment of proliferative diseases, which is characterized in that first an administration catheter is placed on the site of the lesion, and a radioactive substance is administered topically via the catheter, then the catheter is again removed, and the radioactive substance remains on the site of the lesion.
    Type: Grant
    Filed: September 22, 1998
    Date of Patent: August 20, 2002
    Assignee: Schering Aktiengesellschaft
    Inventors: Ludger Dinkelborg, Stephan Christoph Hilger, Dieter Heldmann, Friedhelm Blume
  • Patent number: 6383470
    Abstract: The invention relates to microparticle preparations made of biodegradable copolymers for use in treatment and diagnosis, especially ultrasonic diagnosis, as well as a process for their production.
    Type: Grant
    Filed: July 21, 1997
    Date of Patent: May 7, 2002
    Inventors: Thomas Fritzsch, Dieter Heldmann, Werner Weitschies
  • Publication number: 20020028217
    Abstract: The invention relates to microparticle preparations made of biodegradable copolymers for use in treatment and diagnosis, especially ultrasonic diagnosis, as well as a process for their production.
    Type: Application
    Filed: July 21, 1997
    Publication date: March 7, 2002
    Inventors: THOMAS FRITZSCH, DIETER HELDMANN, WERNER WEITCHIES
  • Publication number: 20020022004
    Abstract: This invention relates to colloidal systems charged with polymethine dyes and having suitable photophysical and pharmacological properties, their use as a contrast medium in fluorescence and transillumination diagnostics in the near infrared spectral range, as well as methods for their production.
    Type: Application
    Filed: September 25, 2001
    Publication date: February 21, 2002
    Inventors: Kai Licha, Bjorn Riefke, Werner Weitschiess, Dieter Heldmann, Violetta Sudmann
  • Publication number: 20020004031
    Abstract: The invention relates to a process for therapeutic treatment of proliferative diseases, which is characterized in that first an administration catheter is placed on the site of the lesion, and a radioactive substance is administered topically via the catheter, then the catheter is again removed, and the radioactive substance remains on the site of the lesion.
    Type: Application
    Filed: September 22, 1998
    Publication date: January 10, 2002
    Inventors: LUDGER DINKELBORG, STEPHAN HILGER, DIETER HELDMANN, FRIEDHELM BLUME