Patents by Inventor Marinus W. Weststrate

Marinus W. Weststrate 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).

  • Method of stabilizing colostrum for immunochemical examination
    Patent number: 5143848
    Abstract: A method of stabilizing a sample of colostrum or milk which is intended for immunochemical examination, by adding a stabilizing system which comprises the following components:(a) a microbiological preservative,(b) a buffer solution which buffers the sample at a pH between 5 and 8, preferably between 5.5 and 6.5, and(c) one or more non-ionic surface-active substances, the components (a), (b) and (c) being selected in such manner that they do not interfere with the immunochemical examination to be carried out. The invention also relates to the stabilization kit to be used for this purpose.
    Type: Grant
    Filed: September 10, 1990
    Date of Patent: September 1, 1992
    Assignee: Duphar International Research B.V.
    Inventors: Rudolf Scholten, Lucas A. T. Hilgers, Marinus W. Weststrate
  • Stabilized adjuvant suspension comprising dimethyl dioctadecyl ammonium bromide
    Patent number: 5026546
    Abstract: A stabilized aqueous adjuvant suspension of dimethyl dioctadecyl ammonium bromide stabilized with at least 0.1 part by weight of a polymer of acrylic acid crosslinked with polyallyl sucrose per part by weight of dimethyl dioctadecyl ammonium bromide, plusa method of stabilizing vaccines adjuvanted with such dimethyl dioctadecyl ammonium bromide.
    Type: Grant
    Filed: December 17, 1987
    Date of Patent: June 25, 1991
    Assignee: Duphar International Research B.V.
    Inventors: Lucas A. T. Hilgers, Marinus W. Weststrate