Patents by Inventor Ronald Apel

Ronald Apel 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).

  • Pyrogenically produced aluminum-silicon mixed oxides
    Patent number: 7241336
    Abstract: Pyrogenically produced aluminum-silicon mixed oxides with a BET surface of more than 300 m2/g and a composition of 0.01 to 99.99% by wt. AI2O3, remainder SiO2 are produced in accordance with the method of flame pyrolysis or preferably flame hydrolysis by a joint combustion of the gaseous raw substances. They can be used to produce coating colors, especially for inkjet papers or inkjet foils or other inkjet materials.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: July 10, 2007
    Assignee: Degussa GmbH
    Inventors: Thomas Scharfe, Ronald Apel, Alfons Moster, Helmut Mangold, Ralph Brandes
  • Pyrogenically produced aluminum-silicon mixed oxides
    Publication number: 20030095905
    Abstract: Pyrogenically produced aluminum-silicon mixed oxides with a BET surface of more than 300 m2/g and a composition of 0.01 to 99.99% by wt. Al2O3, remainder SiO2 are produced in accordance with the method of flame pyrolysis or preferably flame hydrolysis by a joint combustion of the gaseous raw substances. They can be used to produce coating colors, especially for inkjet papers or inkjet foils or other inkjet materials.
    Type: Application
    Filed: July 22, 2002
    Publication date: May 22, 2003
    Inventors: Thomas Scharfe, Ronald Apel, Alfons Moster, Helmut Mangold, Ralph Brandes
  • Process for removing NOx from nitrosylsulphuric acid
    Patent number: 6238639
    Abstract: Nitrosylsulphuric acid is mixed in a mixing reactor with sulphuric acid saturated with SO2. The acid mixture is led into a saturating reactor into the bottom region of which water and an SO2-containing gas are introduced. The gas partially serves as stripping gas inside the saturating reactor. SO2-saturated, Nox-free sulphuric acid with 5 to 60 wt % H2SO4 is removed from the bottom region of the saturating reactor and part thereof is mixed with nitrosylsulphuric acid in the mixing reactor.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: May 29, 2001
    Assignee: Metallgesellschaft Aktiengesellschaft
    Inventors: Georg Schmidt, Egon Winkler, Hartmut Wagner, Ronald Apel, Roland Fach, Dieter Knoblich, Peter-Bernhard Stougie