Patents by Inventor Walter Heinzelmann

Walter Heinzelmann 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).

  • Nitrate ester cyclodextrin complexes
    Publication number: 20080091006
    Abstract: The invention relates to 1:1 complexes of organic nitrate esters with cyclodextrins, to the production of these complexes and to the use thereof in the field of coronary medicine.
    Type: Application
    Filed: October 10, 2007
    Publication date: April 17, 2008
    Inventors: Walter Heinzelmann, Stephan Bojar, Cornelius Ruloff
  • Nitrate ester-cyclodextrin complexes
    Publication number: 20040198698
    Abstract: The invention relates to 1:1 complexes of organic nitrate esters with cyclodextrins, to the production of these complexes and to the use thereof in the field of coronary medicine.
    Type: Application
    Filed: March 10, 2004
    Publication date: October 7, 2004
    Inventors: Walter Heinzelmann, Stephan Bojar, Cornelius Ruloff
  • Fireproof, non-exploding nitroglycerine and solid mixtures containing anhydrous lactose
    Patent number: 6335365
    Abstract: The present invention relates to fireproof, non-explosive solids mixtures containing nitroglycerin and anhydrous lactose that do not have to be classified as an explosive in accordance with ADR/RID, IATA, IMCO and/or UN guidelines, to methods for the preparation of such solids mixtures and to the use of anhydrous lactose for the preparation of fireproof, non-explosive solid mixtures containing nitroglycerin and lactose that do not have to be classified as an explosive in accordance with ADR/RID, IATA, IMCO and/or UN guidelines.
    Type: Grant
    Filed: April 28, 1999
    Date of Patent: January 1, 2002
    Assignee: Dynamit Nobel GmbH Explosivstoff-und Systemtechnik
    Inventors: Walter Heinzelmann, Cornelius Ruloff
  • Cylinder head threaded connection arrangement
    Patent number: 5463991
    Abstract: An annular gap formed between a shaft of a cylinder head bolt and adjacent components is filled with a wire knit for example to increase the heat transfer. The improved heat transfer reduces the increase in bolt force, especially after a cold start of the internal combustion engine.
    Type: Grant
    Filed: July 25, 1994
    Date of Patent: November 7, 1995
    Assignee: Ing. h.c.F. Porsche AG
    Inventors: Peter Krotky, Markus Bauhofer, Walter Heinzelmann
  • Preparation of nitroesters for coronary artery therapy
    Patent number: 4611008
    Abstract: A gel or gel preparation of improved stability and shelf life having an action on the coronary arteries comprising nitroesters, an oil base and finely disperse silica, wherein the finely disperse silica contains hydrophilic and hydrophobic, finely disperse silica is disclosed. A method for making the gel preparation is also disclosed.
    Type: Grant
    Filed: September 14, 1984
    Date of Patent: September 9, 1986
    Assignee: Dynamit Nobel AG
    Inventor: Walter Heinzelmann
  • Method of racemizing optically active 1-phenylethylamine
    Patent number: 4252744
    Abstract: A process for the preparation of racemic phenylethylamine which comprises contacting an optical antipode therefore, e.g., L(-) or D(+)-1-phenylethylamine with sodium amide or sodium hydride.
    Type: Grant
    Filed: June 15, 1976
    Date of Patent: February 24, 1981
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Gunter Bison, Kurt Breideneichen, Walter Heinzelmann, Wolfgang Wolfes
  • Process for splitting the L-(-)-.alpha.-phenylethylamine salt of D-(-)-.alpha.-azidophenylacetic acid
    Patent number: 4190592
    Abstract: A process for splitting the L-(-)-.alpha.-phenylethylamine salt of D-(-)-.alpha.-azidophenylacetic acid which comprises the steps of mixing the salt with a liquid diluent and an acidic cation exchange material, effecting agitation of the resulting admixture and therefore isolating a highly purified D-(-)-.alpha.-azidophenylacetic acid. This acid product is characterized by an amine content of less than 0.2% by weight.
    Type: Grant
    Filed: September 26, 1975
    Date of Patent: February 26, 1980
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Gunter Bison, Reiner Elfgen, Walter Heinzelmann, Josef Winterscheid, Wolfgang Wolfes
  • Process for the production of pure tetrazole-1-acetic acid
    Patent number: 3932441
    Abstract: Process for producing tetrazole-1-acetic acid of maximum purity includes the steps of providing a crude reaction product containing an alkyl ester of tetrazole-1-acetic acid having from 1 to 4 carbon atoms in the alkyl group, effecting molecular distillation of this reaction product at a temperature below 130.degree.C. under a vacuum of 10.sup.-.sup.1 torr to obtain a distillant containing the alkyl ester and then gently hydrolyzing the resultant distillate to obtain the desired acid product.
    Type: Grant
    Filed: September 27, 1974
    Date of Patent: January 13, 1976
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Gunter Bison, Walter Heinzelmann, Norbert Linkat, Wolfgang Wolfes