Patents by Inventor Andre O. Lepain

Andre O. Lepain 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: 4477258
    Abstract: Stable diesel fuel emulsions of the water-in-oil type comprising from about 97 to about 90 volume percent of a mixture of a major amount of usual diesel fuel and a minor amount of at least about 5 volume percent of an aqueous solution of methanol, ethanol or a mixture thereof, and from about 3 to about 10 volume percent of an emulsifying blend of sorbitan monooleate and a water soluble, ethoxylated, non-ionic surfactant; and a process for producing such stable emulsions comprising adding while stirring the aqueous alcohol solution to a mixture of diesel fuel and emulsifying blend.
    Type: Grant
    Filed: October 30, 1980
    Date of Patent: October 16, 1984
    Assignee: Labofina, S.A.
    Inventor: Andre O. Lepain
  • Patent number: 4224152
    Abstract: Disclosed are surface-active compositions for dispersing or collecting oil slicks on water or for protecting or cleaning beaches, which compositions comprise(a) a mixture of surface-active compounds comprising at least one solid compound and at least one liquid compound, and(b) a mixture of solvents comprising a glycol ether and at least one n-paraffin having from about 10 to 16 carbon atoms.
    Type: Grant
    Filed: December 27, 1978
    Date of Patent: September 23, 1980
    Assignee: Labofina S.A.
    Inventor: Andre O. Lepain