Patents by Inventor Antonius Corvers

Antonius Corvers 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).

  • Process for the removal of arsine from a hydrocarbon stream with an adsorbent
    Publication number: 20060048645
    Abstract: A process for the removal of arsine (AsH3) from a hydrocarbon stream, having an atmospheric boiling point lower than about 0° C., by contacting the hydrocarbon stream with an adsorbent that contains elemental sulphur deposited on a support material. The amount of sulfur is in the range between 5 and 25 wt. % relative to the total amount of sulfur and support material. In addition, to arsine, mercury may also be removed from the hydrocarbon stream.
    Type: Application
    Filed: March 28, 2003
    Publication date: March 9, 2006
    Inventors: Leonardus Postma, Antonius Corvers
  • Diazabicyclo (2,2,2) octadiones
    Patent number: 4577023
    Abstract: Disclosed are diazabicyclo (2,2,2) octadiones having the formula: ##STR1## wherein R.sub.1 -R.sub.6 are independently selected from the group consisting of hydrogen, methyl, and ethyl.A method for synthesizing the compounds shown above is also disclosed and consists essentially of:A. reacting a compound having the formula: ##STR2## wherein R and R' are independently selected from the group consisting of hydrogen and alkyl or cyclo alkyl having 1 to 10 carbon atoms, and R.sub.1 -R.sub.6 are independently selected from the group consisting of hydrogen, methyl, and ethyl, withB. a reactant selected from the group consisting of ammonia and primary amines having the formula R.sub.2 -NH.sub.2 wherein R.sub.2 is selected from the group consisting of hydrogen, methyl, and ethyl. The disclosed compounds can be used as starting materials for preparing the corresponding octanes which octanes exhibit useful biological activity, particularly as blood pressure depressants.
    Type: Grant
    Filed: May 25, 1984
    Date of Patent: March 18, 1986
    Assignee: Stamicarbon B.V.
    Inventors: Antonius Corvers, Johannes H. A. Hofman
  • Preparation of derivatives of dichloroacetic acid esters
    Patent number: 4542220
    Abstract: The invention relates to a process for the preparation of derivatives of dichloroacetic acid esters, by reaction of a glyoxylic acid ester having the general formula R.sub.1 --CO--COOR.sub.2, wherein R.sub.1 represents an optionally substituted aryl or heteroaryl group and R.sub.2 an alkyl, cycloalkyl or aryl group, with phosphoruspentachloride in the presence of a dispersant suitable for distributing the phosphoruspentachloride.
    Type: Grant
    Filed: September 15, 1982
    Date of Patent: September 17, 1985
    Assignee: Stamicarbon B.V., Licensing Subsidiary of DSM
    Inventors: Antonius Corvers, Joannes M. C. A. Mulders
  • Process for the preparation of substituted glyoxylic acid derivatives
    Patent number: 4417053
    Abstract: A process for preparing substituted glyoxylic acid derivatives by oxidizing with a molecular oxygen containing gas an amide or ester of a hydroxy acid in the presence of a catalytic amount of a cobalt compound.
    Type: Grant
    Filed: November 12, 1981
    Date of Patent: November 22, 1983
    Assignee: Stamicarbon B.V.
    Inventors: Antonius Corvers, Cornelis W. van den Broek, Geertrudes H. Suverkropp