Patents by Inventor Rakesh H. Mehta

Rakesh H. Mehta 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).

  • Method for providing nano-structures of uniform length
    Patent number: 6998358
    Abstract: This invention relates to the field of nanotechnology. Specifically the invention describes a method for cutting a multiplicity of nano-structures to uniform dimensions of length, length and width, or area, or to a specific distribution of lengths or area using various cutting techniques.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: February 14, 2006
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Roger Harquail French, Timothy Gierke, Mark Andrew Harmer, Anand Jagota, Steven Raymond Lustig, Rakesh H. Mehta, Paula Beyer Hietpas, Bibiana Onoa
  • Method for providing nano-structures of uniform length
    Patent number: 6946410
    Abstract: This invention relates to the field of nanotechnology. Specifically the invention describes a method for cutting a multiplicity of nano-structures to uniform dimensions of length, length and width, or area, or to a specific distribution of lengths or area using various cutting techniques.
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: September 20, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Roger Harquail French, Timothy Gierke, Mark Andrew Harmer, Anand Jagota, Steven Raymond Lustig, Rakesh H. Mehta, Paula Beyer Hietpas, Bibiana Onoa
  • Hetero-composite yarn, fabrics thereof and methods of making
    Patent number: 6783853
    Abstract: A hetero-composite yarn useful in making garments comprises a combined biconstituent yarn and a companion yarn, wherein the biconstituent yarn comprises an axial core comprising a thermoplastic elastomeric polymer, and a plurality of wings attached to the core and comprising a thermoplastic, non-elastomeric polymer.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: August 31, 2004
    Assignee: Invista North America S.a.r.l.
    Inventors: Garret D. Figuly, Marc B. Goldfinger, Rakesh H. Mehta, H. Vaughn Samuelson, Anthony J. Soroka, Gregory P. Weeks
  • Method for providing nano-structures of uniform length
    Publication number: 20040038556
    Abstract: This invention relates to the field of nanotechnology. Specifically the invention describes a method for cutting a multiplicity of nano-structures to uniform dimensions of length, length and width, or area, or to a specific distribution of lengths or area using various cutting techniques.
    Type: Application
    Filed: April 3, 2003
    Publication date: February 26, 2004
    Inventors: Roger Harquail French, Timothy Gierke, Mark Andrew Harmer, Anand Jagota, Steven Raymond Lustig, Rakesh H. Mehta, Paula Beyer Hietpas, Bibiana Onoa
  • Preparation of levulinic acid esters and formic acid esters from biomass and olefins; compositons prepared thereby; and uses of the compositions as fuel additives
    Publication number: 20030233011
    Abstract: This invention relates to a process for producing a mixture of levulinic acid esters and formic acid esters from biomass and olefins, and the composition prepared therefrom. This invention also relates to usage of the mixture of these esters as fuel and as fuel additives for gasoline fuel, diesel fuel, and biofuel.
    Type: Application
    Filed: April 1, 2003
    Publication date: December 18, 2003
    Inventors: Paul Joseph Fagan, Ekaterini Korovessi, Leo Ernest Manzer, Rakesh H. Mehta, Stuart M. Thomas
  • Hetero-composite yarn, fabrics thereof and methods of making
    Publication number: 20030186051
    Abstract: A hetero-composite yarn useful in making garments comprises a combined biconstituent yarn and a companion yarn, wherein the biconstituent yarn comprises an axial core comprising a thermoplastic elastomeric polymer, and a plurality of wings attached to the core and comprising a thermoplastic, non-elastomeric polymer.
    Type: Application
    Filed: September 27, 2002
    Publication date: October 2, 2003
    Inventors: Garret D. Figuly, Marc B. Goldfinger, Rakesh H. Mehta, H. Vaughn Samuelson, Anthony J. Soroka, Gregory P. Weeks
  • Stretchable fibers of polymers, spinnerets useful to form the fibers, and articles produced therefrom
    Patent number: 6548166
    Abstract: A stretchable synthetic polymer fiber comprising an axial core formed from an elastomeric polymer, and two or more wings attached to the core and formed from a non-elastomeric polymer, wherein preferably at least one of the wings is mechanically locked with the axial core. The fibers can be used to form garments, such as hosiery. A spinneret pack for producing such fibers is also provided.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: April 15, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Garret D. Figuly, Anthony J. Soroka, Marc B. Goldfinger, Rakesh H. Mehta, H. Vaughn Samuelson, Gregory P. Weeks
  • Stretchable polymeric fibers and articles produced therefrom
    Publication number: 20020155290
    Abstract: A stretchable synthetic polymer fiber comprises an axial core formed from an elastomeric polymer, and two or more wings formed from a non-elastomeric polymer attached to the core. The fiber has a substantially radially symmetric cross-section. Such fibers can be used to form garments, such as hosiery.
    Type: Application
    Filed: September 28, 2001
    Publication date: October 24, 2002
    Inventors: Garret D. Figuly, Anthony J. Soroka, Marc B. Goldfinger, Rakesh H. Mehta, H. Vaughn Samuelson, Gregory P. Weeks
  • Stretchable fibers of polymers, spinnerets useful to form the fibers, and articles produced therefrom
    Publication number: 20020106509
    Abstract: A stretchable synthetic polymer fiber comprising an axial core formed from an elastomeric polymer, and two or more wings attached to the core and formed from a non-elastomeric polymer, wherein preferably at least one of the wings is mechanically locked with the axial core. The fibers can be used to form garments, such as hosiery. A spinneret pack for producing such fibers is also provided.
    Type: Application
    Filed: September 28, 2001
    Publication date: August 8, 2002
    Inventors: Garret D. Figuly, Anthony J. Soroka, Marc B. Goldfinger, Rakesh H. Mehta, H. Vaughn Samuelson, Gregory P. Weeks