Patents by Inventor Sembian Chandrasekaran

Sembian Chandrasekaran 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).

  • Toothpaste comprising calcium based abrasives
    Patent number: 9308158
    Abstract: It has been found that toothpastes containing balance amounts of calcium based abrasive, copolymer of vinylmethylether and maleic acid and clay have significantly better stability even at elevated temperature. It has also been determined that the selected combination allows for complete removal of or at least a significant reduction in thickening silica, with almost no adverse effect on rheology. Disclosed is a toothpaste composition comprising: (i) a calcium based abrasive; (ii) a copolymer of vinylmethyl ether and maleic acid; and (iii) a clay, wherein ratio of the calcium based abrasive to said copolymer of vinylmethyl ether and maleic acid is at least 1:0075 and ratio of said calcium based abrasive to said clay is at least 1:0.02.
    Type: Grant
    Filed: July 4, 2012
    Date of Patent: April 12, 2016
    Assignee: Conopco, Inc.
    Inventors: Sembian Chandrasekaran, Meenakshi Iyer
  • TOOTHPASTE COMPRISING CALCIUM BASED ABRASIVES
    Publication number: 20140127143
    Abstract: It has been found that toothpastes containing balance amounts of calcium based abrasive, copolymer of vinylmethylether and maleic acid and clay have significantly better stability even at elevated temperature. It has also been determined that the selected combination allows for complete removal of or at least a significant reduction in thickening silica, with almost no adverse effect on rheology. Disclosed is a toothpaste composition comprising: (i) a calcium based abrasive; (ii) a copolymer of vinylmethyl ether and maleic acid; and (iii) a clay, wherein ratio of the calcium based abrasive to said copolymer of vinylmethyl ether and maleic acid is at least 1:0075 and ratio of said calcium based abrasive to said clay is at least 1:0.02.
    Type: Application
    Filed: July 4, 2012
    Publication date: May 8, 2014
    Inventors: Sembian Chandrasekaran, Meenakshi Iyer