Patents by Inventor Theodorus A. B. M. Bolsman

Theodorus A. B. M. Bolsman 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).

  • Detergent composition containing an internal olefin sulfonate component having an enhanced content of beta-hydroxy alkane sulfonate compounds
    Patent number: 5078916
    Abstract: The invention relates to a detergent composition comprising an internal olefin sulfonate salt having from 8 to 26 carbon atoms, wherein at least 25% by weight of the internal olfein sulfonate salt is in the beta-hydroxy alkane sulfonate form. It has been found that internal olefin sulfonate salts having enhanced beta-hydroxy alkane sulfonate content provide excellent detergency.
    Type: Grant
    Filed: April 9, 1991
    Date of Patent: January 7, 1992
    Assignee: Shell Oil Company
    Inventors: Riekert Kok, Hendrikus H. Deuling, Theodorus A. B. M. Bolsman
  • Alkylxylene sulfonate compositions
    Patent number: 4873025
    Abstract: Compositions comprising alkylxylene sulfonate compounds of the formula ##STR1## wherein R' represents a C.sub.6 to C.sub.20 alkyl group and wherein M represents a hydrogen, a metal, an ammonium or an amine ion, are useful as surfactants, particularly in enhanced oil recovery techniques.
    Type: Grant
    Filed: December 12, 1983
    Date of Patent: October 10, 1989
    Assignee: Shell Oil Company
    Inventor: Theodorus A. B. M. Bolsman
  • Aqueous organic sulfonate surfactant systems containing phenylethersulfonate cosurfactants
    Patent number: 4609474
    Abstract: An aqueous organic sulfonate surfactant system containing an alkylpolyalkoxyphenylethersulfonate cosurfactant has a salt tolerance comparable to one containing NEODOL.RTM. 25-3S and has greater heat stability.
    Type: Grant
    Filed: December 6, 1984
    Date of Patent: September 2, 1986
    Assignee: Shell Oil Company
    Inventors: Joseph Reisberg, Hendrik T. Verkouw, Theodorus A. B. M. Bolsman