Patents by Inventor Purvita Patel

Purvita Patel 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).

  • Tablet of compacted particulate cleaning composition
    Patent number: 6586386
    Abstract: A tablet of compacted particulate cleaning composition, wherein the tablet or a discrete region thereof contains surfactant and detergency builder, characterized by containing about 1-10% by wt. of a composite disintegrant blend comprising, by weight, (a) about 40-70% of a water soluble salt, (b) about 30-60% of a mixture of about 10-90% of cellulosic material and 90-10% of crosslinked polyvinylpyrrolidone, the tablet having a disintegration rate of at least 100 g/min.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: July 1, 2003
    Assignee: ISP Investments Inc.
    Inventors: Bala Srinivas, Purvita Patel
  • Tablet of compacted particulate cleaning composition
    Publication number: 20030083221
    Abstract: A tablet of compacted particulate cleaning composition, wherein the tablet or a discrete region thereof contains surfactant and detergency builder, characterized by containing about 1-10% by wt. of a composite disintegrant blend comprising, by weight, (a) about 40-70% of a water soluble salt, (b) about 30-60% of a mixture of about 10-90% of cellulosic material and 90-10% of crosslinked polyvinylpyrrolidone, said tablet having a disintegration rate of at least 100 g/min.
    Type: Application
    Filed: October 26, 2001
    Publication date: May 1, 2003
    Applicant: ISP INVESTMENTS INC.
    Inventors: Bala Srinivas, Purvita Patel