Patents by Inventor Nils O. Pearson

Nils O. Pearson 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: 5858055
    Abstract: A non-explosive water in oil emulsion fertilizer composition is provided which comprises:a discontinuous aqueous phase comprising at least one fertilizer component;a continuous oil phase;an emulsifier comprising the reaction product of at least one hydrocarbyl substituted phenol with at least one amine and at least one aldehyde.
    Type: Grant
    Filed: October 7, 1997
    Date of Patent: January 12, 1999
    Assignee: The Lubrizol Corporation
    Inventors: Richard W. Jahnke, John W. Forsberg, Nils O. Pearson
  • Patent number: 5518517
    Abstract: A non-explosive water in oil emulsion fertilizer composition comprising: a discontinuous aqueous phase comprising at least one fertilizer component; a continuous oil phase; an emulsifier comprising the reaction product of at least one succinic acylating agent and at least one co-reactant selected from the group consisting of: primary alkanol amines, secondary alkanol amines, tertiary alkanol amines, primary amines, secondary amines, tertiary amines, poly-amines, alcohols, polyols, and phenols is disclosed. The ferilizer compositions provide for delayed release of the fertilizer components.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: May 21, 1996
    Assignee: The Lubrizol Corporation
    Inventors: Richard W. Jahnke, John W. Forsberg, Nils O. Pearson
  • Patent number: 5512079
    Abstract: A non-explosive water in oil emulsion fertilizer composition is provided which comprises:a discontinuous aqueous phase comprising at least one fertilizer component;a continuous oil phase;an emulsifier comprising the reaction product of at least one hydrocarbyl substituted succinic anhydride acylating agent and at least one tertiary alkanol amine.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: April 30, 1996
    Assignee: The Lubrizol Corporation
    Inventors: Richard W. Jahnke, John W. Forsberg, Nils O. Pearson
  • Patent number: 5401341
    Abstract: This invention relates to water-in-oil emulsion explosives in which an oxidizing material is contained in the discontinuous water phase, and the continuous oil phase acts as a carbonaceous fuel. More particularly, this invention relates to such explosives in which polyfunctional carboxylic acids, sulfonic acids, or phosphorous-containing acids, soluble in the oil phase, are caused to cross-link using an inorganic cross-linker, thereby causing the viscosity of the emulsion to increase.
    Type: Grant
    Filed: January 19, 1994
    Date of Patent: March 28, 1995
    Assignee: The Lubrizol Corporation
    Inventors: John W. Forsberg, Nils O. Pearson