Patents by Inventor Hendrik Jan Marsman

Hendrik Jan Marsman 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 making SAPO-34 membranes for use in gas separations
    Patent number: 8568518
    Abstract: A method of making a crystalline silicoaluminophosphate-34 (SAPO-34) membrane. The method comprises the steps of providing a porous support having a pore size distribution such that a small proportion of its pores are larger than 10 microns, seeding the porous support with SAPO-34 seed crystals by capillary suspension infiltration to give a seeded support, and growing a SAPO-34 membrane layer on the surface of the seeded support.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: October 29, 2013
    Assignee: Shell Oil Company
    Inventors: Benedictus Clemens Bonekamp, Hendrik Jan Marsman, Johannis Pieter Overbeek, Paul Jason Williams
  • METHOD OF MAKING SAPO-34 MEMBRANES FOR USE IN GAS SEPARATIONS
    Publication number: 20130008312
    Abstract: A method of making a crystalline silicoaluminophosphate-34 (SAPO-34) membrane. The method comprises the steps of providing a porous support having a pore size distribution such that a small proportion of its pores are larger than 10 microns, seeding the porous support with SAPO-34 seed crystals by capillary suspension infiltration to give a seeded support, and growing a SAPO-34 membrane layer on the surface of the seeded support.
    Type: Application
    Filed: March 3, 2011
    Publication date: January 10, 2013
    Inventors: Benedictus Clemens Bonekamp, Hendrik Jan Marsman, Johannis Pieter Overbeek, Paul Jason Williams