Patents by Inventor Jawed Sarkar

Jawed Sarkar 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).

  • Enzyme-assisted clarification and dewatering of wastewater
    Publication number: 20050258095
    Abstract: A method of clarifying and dewatering wastewater comprising adding an effective clarifying and dewatering amount of one or more cellulolytic enzymes and one or more flocculants to the sludge to form a mixture of water and coagulated and flocculated solids and separating the coagulated and flocculated solids from the water.
    Type: Application
    Filed: January 23, 2004
    Publication date: November 24, 2005
    Inventors: Jawed Sarkar, Michael Braden, Jitendra Shah
  • Method of dewatering sludge using enzymes
    Patent number: 6733674
    Abstract: A method of dewatering sludge comprising adding an effective amount of one or more cellulolytic enzymes, one or more oxidants and one or more flocculants to the sludge to form a mixture of water and coagulated and flocculated solids and separating the coagulated and flocculated solids from the water.
    Type: Grant
    Filed: January 22, 2003
    Date of Patent: May 11, 2004
    Assignee: Ondeo Nalco Company
    Inventors: Jawed Sarkar, Jitendra Shah, Manian Ramesh
  • Method of dewatering sludge using enzymes
    Patent number: 6733673
    Abstract: This invention concerns a method of dewatering sludge comprising adding an effective amount of one or more cellulolytic enzymes and one or more peroxidases to the sludge.
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: May 11, 2004
    Assignee: Ondeo Nalco Company
    Inventors: Jawed Sarkar, Jitendra Shah, Manian Ramesh
  • Method of dewatering sludge using enzymes
    Publication number: 20030141256
    Abstract: A method of dewatering sludge comprising adding an effective amount of one or more cellulolytic enzymes, one or more oxidants and one or more flocculants to the sludge to form a mixture of water and coagulated and flocculated solids and separating the coagulated and flocculated solids from the water.
    Type: Application
    Filed: January 22, 2003
    Publication date: July 31, 2003
    Inventors: Jawed Sarkar, Jitendra Shah, Manian Ramesh
  • Method of dewatering sludge using enzymes
    Publication number: 20030141255
    Abstract: This invention concerns a method of dewatering sludge comprising adding an effective amount of one or more cellulolytic enzymes and one or more peroxidases to the sludge.
    Type: Application
    Filed: January 29, 2002
    Publication date: July 31, 2003
    Inventors: Jawed Sarkar, Jitendra Shah, Manian Ramesh
  • Modification of soy flour proteins for producing coagulants in papermaking and waste water treatment applications
    Publication number: 20020144951
    Abstract: Compositions and methods for treating water are provided. Pursuant to the present invention, a modified protein coagulant composition for treating water is provided that includes a quaternized protein having a protein and a cationic monomer. The present invention has been found useful for treating industrial waters relating to, for example, the paper, mining, food, agriculture, and waste treatment industries.
    Type: Application
    Filed: December 21, 2000
    Publication date: October 10, 2002
    Inventors: Jawed Sarkar, Manian Ramesh