Patents by Inventor Petrus Theodorus Johannes Andries van Gelder

Petrus Theodorus Johannes Andries van Gelder 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).

  • Chemically defined vaccine stabiliser
    Patent number: 8778868
    Abstract: The present invention relates to a stabilizer composition comprising an amino acid, and a sugar wherein all compounds are chemically defined; to a vaccine composition comprising such a stabilizer composition and a biological molecule and/or a micro-organism; to a method for preparing a pharmaceutical composition comprising admixing such a stabilizer composition with a biological molecule and/or a micro-organism; to the use of such a stabilizer composition, and of vaccines prepared therewith.
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: July 15, 2014
    Assignee: Intervet International B.V.
    Inventors: Petrus Theodorus Johannes Andries van Gelder, Arnoldus Theodorus Petrus Loermans, Mathias Arnold Maassen
  • METHOD TO GROW LAWSONIA INTRACELLULARIS BACTERIA IN PERSISTENTLY INFECTED MCCOY CELLS
    Publication number: 20120213739
    Abstract: The present invention pertains to a method to obtain McCoy cells persistently infected with Lawsonia intracellularis bacteria, comprising infecting McCoy cells with Lawsonia intracellularis bacteria, growing the infected McCoy cells in a suitable medium at an oxygen concentration less than 18% to arrive at a culture of McCoy cells infected with Lawsonia intracellularis bacteria, passing at least a part of the said culture to fresh medium, and without adding uninfected McCoy cells to the medium, growing the infected McCoy cells contained in the said at least part in the fresh medium at an oxygen concentration less than 18%, to obtain the persistently infected McCoy cells. The invention also pertains to the use of such persistently infected cells to grow and obtain these bacteria in purified form.
    Type: Application
    Filed: November 8, 2010
    Publication date: August 23, 2012
    Inventors: Yvonne Maria Johanna Corina Biermann, Carla Christina Schrier, Petrus Theodorus Johannes Andries van Gelder, Bram Verdellen, Barry Lijsdonk
  • Chemically defined stabiliser
    Publication number: 20100028383
    Abstract: The present invention relates to a stabiliser composition comprising an amino acid, and a sugar wherein all compounds are chemically defined; to a vaccine composition comprising such a stabiliser composition and a biological molecule and/or a micro-organism; to a method for preparing a pharmaceutical composition comprising admixing such a stabiliser composition with a biological molecule and/or a micro-organism; to the use of such a stabiliser composition, and of vaccines prepared therewith.
    Type: Application
    Filed: March 7, 2006
    Publication date: February 4, 2010
    Applicant: INTERVET INTERNATIONAL B.V.
    Inventors: Petrus Theodorus Johannes Andries van Gelder, Arnoldus Theodorus Petrus Loermans, Mathias Arnold Maassen