Patents by Inventor Venkata Goparaju

Venkata Goparaju 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).

  • Monodisperse mesoporous silica microspheres formed by evaporation-induced self-assembly of surfactant templates in aerosoles
    Patent number: 7879304
    Abstract: The present invention provides for evaporation induced self-assembly (EISA) within microdroplets produced by a vibrating orifice aerosol generator (VOAG) for the production of monodisperse mesoporous silica particles. The process of the present invention exploits the concentration of evaporating droplets to induce the organization of various amphiphilic molecules, effectively partitioning a silica precursor to the hydrophilic regions of the structure. Promotion of silica condensation, followed by removal of the surfactant, provides ordered spherical mesoporous particles.
    Type: Grant
    Filed: January 16, 2008
    Date of Patent: February 1, 2011
    Assignee: STC. UNM
    Inventors: Timothy L Ward, Jaime Bravo, Abhaya Datye, Gabriel Lopez, Hien Pham, Shailendra Rathod, Venkata Goparaju
  • Process for manufacturing titanium dioxide pigment
    Publication number: 20080110373
    Abstract: A process is described for manufacturing a titanium dioxide pigment, comprising the steps of a) preparing an aqueous, high solids slurry by gathering materials including crude titanium dioxide from the oxidation of titanium tetrachloride, a dispersant and water and then mixing the gathered materials to form an about 50 to about 70 weight percent slurry of the crude titanium dioxide solids in water, b) diluting the aqueous, high solids slurry by adding a further amount of water to the high solids slurry with mixing, the resultant, lesser solids slurry still containing at least about 50 percent by weight of crude titanium dioxide solids, c) media-milling the resultant aqueous, lesser solids slurry, d) recovering the media-milled, crude titanium dioxide product and e) finishing the media-milled, crude titanium dioxide product to produce a finished titanium dioxide pigment product.
    Type: Application
    Filed: November 8, 2007
    Publication date: May 15, 2008
    Inventors: Venkata Goparaju, Ronnie Hoskins, Darci Pillars
  • Stimuli responsive mesoporous materials for control of molecular transport
    Publication number: 20050013988
    Abstract: The present subject matter relates generally to design, synthesis, and characterization of materials with well-defined porous networks of molecular dimensions in which the size and surface energy of the pores can be externally and reversibly controlled to dynamically modulate the adsorption and transport of molecular species.
    Type: Application
    Filed: April 16, 2004
    Publication date: January 20, 2005
    Inventors: Qiang Fu, Venkata Goparaju, Linnea Ista, Yang Wu, Brett Andrzejewski, Yunfeng Lu, Larry Sklar, Timothy Ward, Gabriel Lopez
  • Stimuli-responsive hybrid materials containing molecular actuators and their applications
    Patent number: 6615855
    Abstract: The present invention provides a hybrid material and a method for forming a hybrid material comprising actuator made from a stimuli responsive polymer mounted in a porous framework. The present invention also provides devices employing the actuator of the present invention.
    Type: Grant
    Filed: September 11, 2002
    Date of Patent: September 9, 2003
    Assignee: Science & Technology Corporation @t UNM
    Inventors: Gabriel Lopez, Ashutosh Chilkoti, Plamen Atanassov, Venkata Goparaju
  • Stimuli-responsive hybrid materials containing molecular actuators and their applications
    Publication number: 20030047220
    Abstract: The present invention provides a hybrid material and a method for forming a hybrid material comprising actuator made from a stimuli responsive polymer mounted in a porous framework. The present invention also provides devices employing the actuator of the present invention.
    Type: Application
    Filed: September 11, 2002
    Publication date: March 13, 2003
    Inventors: Gabriel P. Lopez, Ashutosh Chilkoti, Plamen Atanassov, Venkata Goparaju
  • Stimuli responsive hybrid materials containing molecular actuators and their applications
    Patent number: 6491061
    Abstract: The present invention provides a hybrid material and a method for forming a hybrid material comprising actuator made from a stimuli responsive polymer mounted in a porous framework. The present invention also provides devices employing the actuator of the present invention.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: December 10, 2002
    Assignee: University of New Mexico
    Inventors: Gabriel Lopez, Ashutosh Chilkoti, Plamen Atanassov, Venkata Goparaju