Patents by Inventor John Franciscus Zevenbergen

John Franciscus Zevenbergen 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).

  • Low-smoke pyrotechnic composition for producing colored flames
    Patent number: 8486207
    Abstract: The present invention provides a chlorine-containing pyrotechnic composition which is substantially free of per-chlorate which composition comprises a nitrocellulose which is derived from a fibrous nitrocellulose starting material that has at least partially been dissolved during the process of preparing the pyrotechnic composition, and a colorant. The invention further provides a firework article comprising said pyrotechnic composition, and a method for preparing the same.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: July 16, 2013
    Assignee: Clearspark, LLC
    Inventors: Rutger Webb, Martijn Zebregs, John Franciscus Zevenbergen, Murk Pieter Van Rooijen
  • Pyrotechnic colour composition
    Patent number: 8142581
    Abstract: The invention provides a chlorine-containing pyrotechnic composition which comprises a binder, an oxidator, a pyrotechnic fuel, and a colorant comprising a metal salt of 5-aminotetrazole. The invention further relates to a firework article comprising such a pyrotechnic composition. In addition, the invention provides a method for preparing said colorant.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: March 27, 2012
    Assignee: Clearspark, LLC
    Inventors: John Franciscus Zevenbergen, Rutger Webb, Murk Pieter Van Rooijen
  • PYROTECHNIC COLOUR COMPOSITION
    Publication number: 20100024931
    Abstract: The invention provides a chlorine-containing pyrotechnic composition which comprises a binder, an oxidator, a pyrotechnic fuel, and a colorant comprising a metal salt of 5-aminotetrazole. The invention further relates to a firework article comprising such a pyrotechnic composition.
    Type: Application
    Filed: October 9, 2009
    Publication date: February 4, 2010
    Inventors: John Franciscus ZEVENBERGEN, Rutger Webb, Murk Pieter Van Rooijen