Patents by Inventor Angelo Bordin

Angelo Bordin 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).

  • Process for the purification of technical-grade N-alkyl urea
    Patent number: 5446200
    Abstract: A process for the purification of technical-grade N-alkyl urea, particularly mono-ethyl urea, including an alkali metal sulphate, characterised in that it includes the steps of:treating the technical alkyl urea with a C.sub.1 -C.sub.4 alcoholic solvent to cause the selective dissolution of the alkyl urea,separating the soluble fraction from the alkali metal sulphate which is insoluble in the alcoholic solvent, andremoving the alcoholic solvent from the soluble fraction to recover the N-alkyl urea.
    Type: Grant
    Filed: December 24, 1992
    Date of Patent: August 29, 1995
    Assignee: I.PI.CI. S.p.A.
    Inventor: Angelo Bordin