Patents by Inventor Achille Jules Edmond Doumen

Achille Jules Edmond Doumen 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: 5958866
    Abstract: A spray-dried component which is in the form of a free-flowing particle with high chelant activity comprising: i) at least 50%, preferably at leaxt 60%, by weight, of a chelant; ii) from 1% to 25%, preferably from 5% to 10%, by weight of an alkali metal or alkaline earth metal sulfate; and iii) preferably less than 10% by weight of free moisture.
    Type: Grant
    Filed: November 3, 1998
    Date of Patent: September 28, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Scott John Donoghue, Achille Jules Edmond Doumen
  • Patent number: 5780419
    Abstract: A free-flowing detergent powder is prepared by spray drying and comprises from 10% to 90%, by weight, of a complex of a chelating agent and a metal ion selected from the group consisting of magnesium, calcium, strontium, zinc, aluminum and mixtures thereof, and from 10% to 90%, by weight, of a polymer comprising anionic functional groups. The detergent powder comprises less than 20%, by weight, on an anhydrous basis, of inorganic components other than the metal ion.
    Type: Grant
    Filed: October 18, 1996
    Date of Patent: July 14, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Achille Jules Edmond Doumen, Luc Goovaerts, Jose Luis Vega
  • Patent number: 5703037
    Abstract: A process for the manufacture of free flowing detergent granules having a bulk density of at least 600 g/l, comprises the steps of:a) neutralising anionic surfactant acid or acids in an excess of alkali to form a paste, and optionally mixing other surfactants with the paste, to give a total surfactant level in the paste of at least 40% by weight;b) mixing said paste with one or more powders to form a granular product; andc) optionally drying the granular product,wherein at least one of the powders in step b) is spray dried and comprises anionic polymer and cationic surfactant.
    Type: Grant
    Filed: October 18, 1996
    Date of Patent: December 30, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Achille Jules Edmond Doumen, Luc Goovaerts, Jose Luis Vega