Patents by Inventor Kuntal Chatterjee

Kuntal Chatterjee 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).

  • Publication number: 20120252713
    Abstract: These disclosures relate to a composition comprising a combination of chemicals and to a process for using the same composition. This process provides a means to use the composition in cleaning floors and surfaces previously coated with a wax coating for protection of the surface. The composition can include a combination of chemicals selected from microemulsion concentrates based on benzyl alcohol in combination with aqueous ammonia solution.
    Type: Application
    Filed: September 23, 2011
    Publication date: October 4, 2012
    Applicant: INVISTA North America S.a.r.l.
    Inventors: Richard P. BEATTY, Kuntal CHATTERJEE
  • Patent number: 6326341
    Abstract: Automatic dishwashing detergent compositions comprising a mixed surfactant system comprising low cloud point nonionic surfactant and charged surfactant selected from anionic surfactants, zwitterionic surfactants, and mixtures thereof.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: December 4, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Kuntal Chatterjee, William Michael Scheper, Lynda Anne Speed, Graeme Duncan Cruickshank
  • Patent number: 6034044
    Abstract: Automatic dishwashing detergent compositions comprising a mixed nonionic surfactant system comprising low cloud point and high cloud point nonionic surfactants.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: March 7, 2000
    Assignee: The Procter & Gamble Company
    Inventors: William Michael Scheper, Laura Lee Turner, Kuntal Chatterjee, Lynda Anne Speed, Graeme Duncan Cruickshank
  • Patent number: 6013613
    Abstract: Automatic dishwashing detergent compositions comprising a mixed nonionic surfactant system comprising low cloud point and high cloud point nonionic surfactants.
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: January 11, 2000
    Assignee: The Procter & Gamble Company
    Inventors: William Michael Scheper, Laura Lee Turner, Kuntal Chatterjee
  • Patent number: 5967157
    Abstract: Automatic dishwashing detergent compositions comprising a nonionic surfactant having the formula:R.sub.1 O[CH.sub.2 CH(CH.sub.3)O].sub.x [CH.sub.2 CH.sub.2 O].sub.y [CH.sub.2 CH(OH)R.sub.2 ]wherein R.sub.1 is a linear or branched, aliphatic hydrocarbon radical having from about 4 to about 18 carbon atoms including mixtures thereof; R.sub.2 is a linear or branched aliphatic hydrocarbon radical having from about 2 to about 26 carbon atoms including mixtures thereof; x is an integer having an average value of from 0.5 to about 1.5; and y is an integer having a value of least about 15; employed in conjunction with a detersive enzyme such as amylase are provided.
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: October 19, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Kuntal Chatterjee, Graeme Duncan Cruickshank, Lynda Anne Jones, Eugene Steven Sadlowski
  • Patent number: 5912218
    Abstract: Automatic dishwashing detergent compositions comprising a mixed surfactant system comprising low cloud point nonionic surfactant and charged surfactant selected from anionic surfactants, zwitterionic surfactants, and mixtures thereof
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: June 15, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Kuntal Chatterjee, William Michael Scheper
  • Patent number: 5877134
    Abstract: Automatic dishwashing detergent compositions comprising a mixed nonionic surfactant system comprising low cloud point and high cloud point nonionic surfactants. The low cloud point nonionic surfactant has the formula:R.sub.1 O?CH.sub.2 CH(CH.sub.3)O!.sub.x ?CH.sub.2 CH.sub.2 O!.sub.y CH.sub.2 CH(OH)R.sub.2wherein R.sub.1 is a linear or branched, aliphatic hydrocarbon radical having from about 4 to about 18 carbon atoms; R.sub.2 is a linear or branched aliphatic hydrocarbon radical having from about 2 to about 26 carbon atoms; x is an integer having an average value of from 0.5 to about 1.5; and y is an integer having a value of least about 15. The high cloud point nonionic surfactant comprises an ethoxylated surfactant derived from the reaction of a monohydroxy alcohol containing from about 10 to about 16 carbon atoms, with from about 6 to about 15 moles of ethylene oxide per mole of alcohol on an average basis and having a hydrophile-lipophile balance value within the range of from about 12 to about 14.
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: March 2, 1999
    Assignee: The Procter & Gamble Company
    Inventors: William Michael Scheper, Laura Lee Turner, Kuntal Chatterjee