Patents by Inventor Kathleen Marie Creegan

Kathleen Marie Creegan 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).

  • Molybdenum-antioxidant lube oil compositions
    Patent number: 6358894
    Abstract: The invention relates to lubricating oil compositions of a major amount of an oil of lubricating viscosity in admixture with an effective minor amount of an oil soluble or dispersible trinuclear molybdenum containing complex and of an antioxidant, preferably, copper containing antioxidants and diphenyl amines and effective diphenylamine derivatives to enhance the lubricating properties of the oil. Also included are additive concentrates containing these compositions. The invention further includes the method of making these compositions.
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: March 19, 2002
    Assignee: Infineum USA L.P.
    Inventors: Daniel Paul Leta, Jonathan M. McConnachie, Edward Ira Stiefel, Charles Frederick Pictroski, Kathleen Marie Creegan