Patents by Inventor Henricus M. Princen

Henricus M. Princen 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).

  • Patent number: 4564463
    Abstract: A heavy duty liquid detergent composition and a method for imparting soil release benefits to a fabric is herein provided. The composition comprises:(a) from about 2 to 10% of a nonionic surfactant selected from the group consisting of a C.sub.12 -C.sub.13 fatty alcohol ethoxylated with an average of 6.5 moles ethylene oxide, a C.sub.9 -C.sub.11 fatty alcohol ethoxylated with an average of 6 moles ethylene oxide, and mixtures thereof;(b) from about 10 to 25% of an anionic surfactant; and(c) from about 0.1 to 0.8% of methylcellulose.Small amounts of sodium citrate or sodium nitrilotriacetic acid may be present to aid in general detergency.
    Type: Grant
    Filed: June 15, 1984
    Date of Patent: January 14, 1986
    Assignee: Lever Brothers Company
    Inventors: Isaac I. Secemski, Lynn H. Lander, Henricus M. Princen
  • Patent number: 4299739
    Abstract: An improved detergent composition containing as essential ingredients:(a) a surface active agent;(b) alkali metal carbonates; and(c) water-soluble inorganic aluminum compounds.
    Type: Grant
    Filed: August 22, 1977
    Date of Patent: November 10, 1981
    Assignee: Lever Brothers Company
    Inventors: Michael A. Esposito, Henricus M. Princen
  • Patent number: 4176200
    Abstract: Surface discoloration of water-in-oil emulsion type food spreads such as margarines can be reduced by incorporating into the fat or water phase of the spread a substance which makes the optical properties of the spread, when dehydrated, comparable to the optical properties of a freshly prepared spread. Titanium dioxide may be used for this purpose at levels as low as 0.1% by weight of the spread.
    Type: Grant
    Filed: September 19, 1977
    Date of Patent: November 27, 1979
    Assignee: Lever Brothers Company
    Inventors: Henricus M. Princen, Michael P. Aronson