Patents by Inventor Robert Ralainirina

Robert Ralainirina 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).

  • Surface active galacturonic acid derivatives
    Patent number: 5688929
    Abstract: The galacturonic acid derivatives of formula: ##STR1## R1 being a linear or branched alkyl having 2 to 22 carbon atoms, R being: ##STR2## for which the carbon carrying the hydroxyl group is attached to the endocyclic oxygen atom.R2 being hydrogen, R1, an alkali metal atom, an alkaline-earth metal atom or a quaternary ammonium group of formula: ##STR3## in which R3 to R6 is each independently of the other hydrogen, an alkyl having 1 to 6 carbon atoms or a hydroxyalkyl having 1 to 6 carbon atoms, are surface-active agents.
    Type: Grant
    Filed: February 18, 1993
    Date of Patent: November 18, 1997
    Assignees: Agro Industrie Recherches et Developpements (A.R.D.), Zschimmer & Schwarz GmbH & Co. Chemische Fabriken
    Inventors: Serge Petit, Robert Ralainirina, Serge Favre, Regis De Baynast