Patents by Inventor Leif Hammer

Leif Hammer 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).

  • Method for preventing the growth of aerobic fungi in aqueous hydrocarbons
    Patent number: 5314510
    Abstract: Aerobic fungal growth in hydrocarbons contaminated with water is prevented by addition thereto of an additive comprising boron and a hydrocarbyl-substituted succinimide in which the hydrocarbyl substituent is of a size sufficient to impart hydrocarbon solubility.
    Type: Grant
    Filed: February 8, 1993
    Date of Patent: May 24, 1994
    Assignee: BP Chemicals (Additives) Limited
    Inventors: Leif Hammer, Benny Smith