Patents by Inventor Lars-Inge R. Olsson

Lars-Inge R. Olsson 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).

  • Flowability improving agent, process for the production thereof and use thereof
    Patent number: 5010124
    Abstract: Flowability improving agent comprising a combination of(A) a sulphonated melamine-formaldehyde resin, a sulphonated melamine-urea-formaldehyde resin or a sulphonated naphthalene-formaldehyde resin and(B) a compound of the general formulaAr O--[R.sub.1 ].sub.n --R.sub.2.
    Type: Grant
    Filed: January 30, 1989
    Date of Patent: April 23, 1991
    Assignee: Perstorp AB
    Inventors: Lars-Inge R. Olsson, Kent F. Hamacek