Patents Assigned to Stichting Dienst Landbouwkundig Onderzoek
  • Patent number: 7744907
    Abstract: The invention relates to an ex vivo animal or challenge model as a method to identify protective (recombinant) proteins and rapidly measure protective immunity in intestinal segments directed against parasites and vaccines directed against parasitic infections. The invention further relates to vaccines directed against infection with parasites, such as Fasciola hepatica, which vaccines contain protective (recombinant) proteins identified and shown to be protective in studies using the ex vivo model. The invention further relates to protective (recombinant) proteins obtained from newly excysted juveniles (NEJ) of Fasciola hepatica. The protective (recombinant) protein corresponding to an NEJ protein has an apparent molecular weight of 32 kD and an N-terminal amino acid sequence comprising the sequence XXDVSWPFWDRMYNY (SEQ ID NO:1).
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: June 29, 2010
    Assignee: Stichting Dienst Landbouwkundig Onderzoek
    Inventors: Florine Johanna van Milligen, Johannes Bernardus Wilhelmus Joseph Cornelissen, Bernard Adri Bokhout
  • Publication number: 20080138358
    Abstract: The invention relates to an ex vivo animal or challenge model as a method to identify protective (recombinant) proteins and rapidly measure protective immunity in intestinal segments directed against parasites and vaccines directed against parasitic infections. The invention further relates to vaccines directed against infection with parasites, such as Fasciola hepatica, which vaccines contain protective (recombinant) proteins identified and shown to be protective in studies using the ex vivo model. The invention further relates to protective (recombinant) proteins obtained from newly excysted juveniles (NEJ) of Fasciola hepatica. The protective (recombinant) protein corresponding to an NEJ protein has an apparent molecular weight of 32 kD and an N-terminal amino acid sequence comprising the sequence XXDVSWPFWDRMYNY (SEQ ID NO:1).
    Type: Application
    Filed: July 26, 2007
    Publication date: June 12, 2008
    Applicant: Stichting Dienst Landbouwkundig Onderzoek
    Inventors: Florine Johanna van Milligen, Johannes Bernardus Wilhelmus Joseph Cornelissen, Bernard Adri Bokhout
  • Patent number: 7125548
    Abstract: The invention relates to Streptococcus suis infection in pigs, vaccines directed against those infections and tests for diagnosing Streptococcus suis infections. The invention provides an isolated or recombinant nucleic acid encoding a capsular gene cluster of Streptococcus suis or a gene or gene fragment derivated thereof. The invention further provides a nucleic acid probe or primer allowing species or serotype-specific detection of Streptococcus suis. The invention also provides a Streptococcus suis antigen and vaccine derived thereof.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: October 24, 2006
    Assignee: Stichting Dienst Landbouwkundig Onderzoek
    Inventor: Hilda Elizabeth Smith
  • Patent number: 6551594
    Abstract: The invention relates to an ex vivo animal or challenge model as a method to identify protective (recombinant) proteins and rapidly measure protective immunity in intestinal segments directed against parasites and vaccines directed against parasitic infections. The invention further relates to vaccines directed against infection with parasites, such as Fasciola hepatica, which vaccines contain protective (recombinant) proteins identified and shown to be protective in studies using the ex vivo model. The invention further relates to protective (recombinant) proteins obtained from newly excysted juveniles (NEJ) of Fasciola hepatica. The protective (recombinant) protein corresponding to an NEJ protein has an apparent molecular weight of 32 kDa and an N-terminal amino acid sequence comprising the sequence XXDVSWPFWDRMYNY (SEQ ID NO:1).
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: April 22, 2003
    Assignee: Stichting Dienst Landbouwkundig Onderzoek
    Inventors: Florine Johanna van Milligen, Johannes Bernardus Wilhelmus Joseph Cornelissen, Bernard Adri Bokhout
  • Patent number: 6495138
    Abstract: The invention provides antigenic sites of PRRSV isolates. The antigenic sites are neutralizing, conserved, non-conserved and conformational, can elicit antibodies and are found on protein GP4 and N encoded ORF4 and ORF7 of PRRSV. The peptide sequences identified by the sites can be incorporated in vaccines directed against PRRS and in diagnostic tests for PRRS. Also, discriminating tests can be developed that can be used next to marker vaccines in programs designed to eradicate PRRS from pig herds.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: December 17, 2002
    Assignee: Stichting Dienst Landbouwkundig Onderzoek
    Inventors: Antonie Paul van Nieuwstadt, Jan Langeveld, Janneke Meulenberg
  • Patent number: 6303285
    Abstract: An apparatus for freezing live cells, in particular sperm, which cells are included in at least one sample in at least one container, wherein means are provided for cooling the or each container, wherein the cooling means (5, 6, 7; 105, 106, 107) comprise at least one contact face (3, 103), capable of being cooled, for cooling, during use, the or each container (16, 116) and the or each sample included therein through abutting contact, wherein control means (10, 110) are provided for controlling, during cooling, the cooling rate (TG) and the ambient temperature of the or each container (16, 116).
    Type: Grant
    Filed: October 6, 1999
    Date of Patent: October 16, 2001
    Assignee: Stichting Dienst Landbouwkundig Onderzoek
    Inventor: Henri Woelders
  • Patent number: 6268199
    Abstract: An infectious clone based on the genome of a wild-type RNA virus is produced by the process of providing a host cell not susceptible to infection by the wild-type RNA virus, providing a recombinant nucleic acid based on the genome of the wild-type RNA virus, transfecting the host cell with the recombinant nucleic acid and selecting for infectious clones. The recombinant nucleic acid comprises at least one full-length DNA copy or in vitro-transcribed RNA copy or a derivative of either. The infectious clones can be used in single or dual purpose vaccines and in viral vector vaccines.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: July 31, 2001
    Assignee: Stichting Dienst Landbouwkundig Onderzoek
    Inventors: Johanna Jacoba Maria Meulenberg, Johannes Maria Antonius Pol, Judy Norma Aletta Bos-de Ruijter