Patents by Inventor Elijah B. Sansom

Elijah B. Sansom 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).

  • Patent number: 8021967
    Abstract: A fluid transport method and fluid transport device are disclosed. Nanoscale fibers disposed in a patterned configuration allow transport of a fluid in absence of an external power source. The device may include two or more fluid transport components having different fluid transport efficiencies. The components may be separated by additional fluid transport components, to control fluid flow.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: September 20, 2011
    Assignee: California Institute of Technology
    Inventors: Jijie Zhou, Michael Bronikowski, Flavio Noca, Elijah B. Sansom
  • Patent number: 7959969
    Abstract: A method of fabricating optical energy collection and conversion devices using carbon nanotubes (CNTs), and a method of anchoring CNT's into thin polymeric layers is disclosed. The basic method comprises an initial act of surrounding a plurality of substantially aligned nanostructures within at least one fluid layer of substantially uniform thickness such that a first end of the plurality of nanostructures protrudes from the fluid layer. Next, the fluid layer is altered to form an anchoring layer, thereby fastening the nanostructures within the primary anchoring layer with the first ends of the nanostructures protruding from a first surface of the primary anchoring layer. Finally, a portion of the anchoring layer is selectively removed such that a second end of the nanostructures is exposed and protrudes from the anchoring layer. The resulting product is an optically absorbent composite material having aligned nanostructures protruding from both sides of an anchoring layer.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: June 14, 2011
    Assignee: California Institute of Technology
    Inventors: Elijah B. Sansom, Morteza Gharib, Derek Rinderknecht
  • Publication number: 20100196446
    Abstract: The present invention relates to a nano-enhanced device for substance transfer between the device and a tissue. The device comprises a substrate with substantially aligned carbon nanotubes anchored within the substrate, and with at least one end of the carbon nanotubes protruding from the substrate. The protruding nanotube ends may be coated with a drug for delivery of the drug into body tissue. The present invention may be incorporated into an angioplasty catheter balloon or into a patch that is worn on the skin. The carbon nanotubes can be grouped in clusters to effectively form nano-needles which can transfer fluid to or from the subdermal tissue. The nano-needles can be used in conjunction with a sensor to ascertain body fluid information such as pH, glucose level, etc.
    Type: Application
    Filed: January 27, 2010
    Publication date: August 5, 2010
    Inventors: Morteza Gharib, Elijah B. Sansom, Adrianus I. Aria
  • Publication number: 20090130370
    Abstract: A method of fabricating optical energy collection and conversion devices using carbon nanotubes (CNTs), and a method of anchoring CNT's into thin polymeric layers is disclosed. The basic method comprises an initial act of surrounding a plurality of substantially aligned nanostructures within at least one fluid layer of substantially uniform thickness such that a first end of the plurality of nanostructures protrudes from the fluid layer. Next, the fluid layer is altered to form an anchoring layer, thereby fastening the nanostructures within the primary anchoring layer with the first ends of the nanostructures protruding from a first surface of the primary anchoring layer. Finally, a portion of the anchoring layer is selectively removed such that a second end of the nanostructures is exposed and protrudes from the anchoring layer. The resulting product is an optically absorbent composite material having aligned nanostructures protruding from both sides of an anchoring layer.
    Type: Application
    Filed: November 10, 2008
    Publication date: May 21, 2009
    Inventors: Elijah B. Sansom, Morteza Gharib, Derick Rinderknecht
  • Patent number: 7491628
    Abstract: A method of assembling large numbers of nanoscale structures in pre-determined ways using fluids or capillary lithography to control the patterning and arrangement of the individual nanoscale objects and nanostructures formed in accordance with the inventive method are provided. In summary, the current method uses the controlled dispersion and evaporation of fluids to form controlled patterns of nanoscale objects or features anchored on a substrate, such as nanoscale fibers like carbon nanotubes.
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: February 17, 2009
    Assignee: California Institute of Technology
    Inventors: Flavio Noca, Elijah B. Sansom, Jijie Zhou, Morteza Gharib