Patents by Inventor Tianli Wen

Tianli Wen 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 forming an agglomerated particle
    Patent number: 6514929
    Abstract: The present invention relates to a process for forming an agglomerated particle containing the steps of providing at least one alkaline material, a core material, and at least one acid active. The alkaline material and the core material are added to a mixer and agglomerated therein, to form an agglomerated particle comprising an interior and an exterior. The acid active is then added to the mixer. The core material is concentrated into the interior of the agglomerated particle by adding substantially all of the core material to the alkaline material before more than about 50% of the acid active is added to the mixer.
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: February 4, 2003
    Assignee: The Procter & Gamble Company
    Inventors: Manivannan Kandasamy, Tianli Wen
  • Process for forming a cleaning composition
    Patent number: 6511956
    Abstract: The present invention relates to a process for forming a cleaning composition containing the steps of providing at least one alkaline material and at least one acid active, and adding the acid active and the alkaline material to a mixer. The acid active is substantially neutralized within the mixer to form a neutralized detergent active. At least one acid-sensitive polymer is added to the neutralized detergent active to form a slurry, and the slurry is formed into a cleaning composition. A cleaning composition as formed by the above process is also described herein.
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: January 28, 2003
    Assignee: The Procter & Gamble Company
    Inventors: Tianli Wen, Manivannan Kandasamy