Patents by Inventor Krister Severinsson

Krister Severinsson 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).

  • Silicate composition
    Patent number: 5547603
    Abstract: The invention concerns a solid alkalimetal silicate having a molar ratio SiO.sub.2 :M.sub.2 O from about 1.5 to about 3, in which M is an alkali metal and substantially consists of sodium and optionally potassium. The silicate contains from about 7 to about 20% by weight of sodium carbonate based on the dry material and has a water content from about 14 to about 22% by weight. Further, the invention concerns a method of preparing the silicate above, use of the same and cleaning agent compositions containing such a silicate.
    Type: Grant
    Filed: May 13, 1994
    Date of Patent: August 20, 1996
    Assignee: Eka Nobel AB
    Inventors: Olle Sorensson, Krister Severinsson
  • Alkali metal silicate composition with potassium compound additive
    Patent number: 5344633
    Abstract: The invention concerns a solid alkalimetal silicate having a molar ratio SiO.sub.2 :M.sub.2 O from about 1.5 to about 3, in which M is an alkalimetal substantially consisting of sodium and potassium. The silicate contains from about 1 and up to about 5% by weight of K.sub.2 O based on the dry material and the water content being from about 16 to about 25% by weight based on the total weight.Further, the invention concerns a method of its preparation, its use and a cleaning agent composition containing the silicate above.
    Type: Grant
    Filed: June 14, 1993
    Date of Patent: September 6, 1994
    Assignee: Eka Nobel AB
    Inventors: Olle Sorensson, Krister Severinsson
  • Alkali metal silicate composition with sodium carbonate additive
    Patent number: 5338528
    Abstract: The invention concerns a solid alkalimetal silicate having a molar ratio SiO.sub.2 :M.sub.2 O from about 1.5 to about 3, in which M is an alkalimetal and substantially consists of sodium and optionally potassium. The silicate contains from about 7 to about 20% by weight of sodium carbonate based on the dry material and has a water content from about 14 to about 22% by weight.Further, the invention concerns a method of preparing the silicate above, use of the same and cleaning agent compositions containing such a silicate.
    Type: Grant
    Filed: June 14, 1993
    Date of Patent: August 16, 1994
    Assignee: Eka Nobel AB
    Inventors: Olle Sorensson, Krister Severinsson