Patents by Inventor Petrus Alphonsus Maria Van Woensel

Petrus Alphonsus Maria Van Woensel 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).

  • European vaccine strains of the porcine reproductive and respiratory syndrome virus
    Patent number: 5925359
    Abstract: The present invention is concerned with European strains of the Porcine Reproductive Respiratory Syndrome (PRRS) virus, having as a unique feature that they are non-infectious to macrophages, and to methods for the production of such strains. The invention also provides vaccines for the protection of pigs against PRRS, based on these strains, as well as methods for the production of such vaccines.
    Type: Grant
    Filed: October 9, 1997
    Date of Patent: July 20, 1999
    Assignee: Akzo Nobel, N.V.
    Inventors: Petrus Alphonsus Maria Van Woensel, Jean Guillaume Joseph Demaret
  • Expression of porcine reproductive respiratory syndrome virus polypeptides in the same cell
    Patent number: 5858729
    Abstract: The present invention provides a process for the recombinant DNA production of a mature form of the PRRSV ORF 3 or ORF 4 protein. This is achieved by the co-expression of the PRRSV ORF 2, ORF 3 and ORF 4 proteins by the same cell.
    Type: Grant
    Filed: March 14, 1996
    Date of Patent: January 12, 1999
    Assignee: Akzo Nobel, N.V.
    Inventors: Petrus Alphonsus Maria Van Woensel, Karl-Klaus Conzelmann
  • Vaccine against viruses associated with antibody-dependent-enhancement of viral infectivity
    Patent number: 5789388
    Abstract: The present invention relates to a vaccine against a virus associated with antibody-dependent-enhancement of viral infectivity. Such a vaccine comprises a herpesvirus vector which is able to spread from cell-to-cell and which does produce non-infectious progeny virions having a gene encoding an antigen of said virus inserted into the herpesvirus genome.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: August 4, 1998
    Assignee: Akzo Nobel N.V.
    Inventors: Nicolaas Visser, Petrus Alphonsus Maria van Woensel, Thomas Christoph Mettenleiter
  • European vaccine strains of the Porcine Reproductive Respiratory Syndrome virus (PRRSV)
    Patent number: 5698203
    Abstract: The present invention is concerned with European strains of the Porcine Reproductive Respiratory Syndrome (PRRS) virus, which are attenuated, and show a characteristic reaction pattern with two monoclonal antibodies against wild-type PRRSV.The invention also relates to vaccines for the protection of pigs against PRRS, to monoclonal antibodies reactive with PRRS virus and monoclonal antibodies specifically non-reactive with the attenuated strains.
    Type: Grant
    Filed: April 11, 1995
    Date of Patent: December 16, 1997
    Assignee: Akzo Nobel N.V.
    Inventors: Nicolaas Visser, Petrus Alphonsus Maria Van Woensel, Volker Ohlinger, Emilie Weiland