Patents by Inventor David Shih-Wei Chou

David Shih-Wei Chou 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: 8945916
    Abstract: A device and system for growing of a photosynthetic culture is provided which employs one or a plurality of vertically disposed photopanels having interior cavities configured for holding liquid and the photosynthetic culture such as algae. Interior surfaces are enhanced in size by projections defined by deformation in sidewalls of the photopanels. The projections communicate between the sidewalls also providing structural integrity to the photopanel and allowing for thinner sidewalls and increased light transmission therethrough. The system may employ a support rack and pivotal mount to each such photopanel to allow positioning adjacent to each other in rows. Pivoting during different lighting conditions afforded the racked photopanels provides a manner to reduce light blockage to individual photo panels from adjacent photopanels.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: February 3, 2015
    Inventor: David Shih-Wei Chou
  • Publication number: 20130146741
    Abstract: A device and system for growing a photosynthetic culture is provided which employs one or a plurality of vertically disposed photopanels having interior cavities configured for holding liquid and the photosynthetic culture such as algae. The inner chamber of the photopanels may have a shape that is structurally supported by bridging elements. The bridging elements may be formed as stepped cones that may function as light guides to the interior chamber.
    Type: Application
    Filed: December 14, 2012
    Publication date: June 13, 2013
    Inventor: David Shih-Wei Chou
  • Publication number: 20130140425
    Abstract: A device and system for growing a photosynthetic culture is provided which employs one or a plurality of vertically disposed photopanels having an inner chamber configured for holding liquid and the photosynthetic culture such as algae. The inner chamber of the photopanels may have a shape that is defined as well as structurally supported by bridging elements. The photopanels with the bridging elements may be formed as stepped cones and pyramids utilizing common recyclable clear plastic sheets and membranes. The bridging elements also serve to increases the surface area to volume ratio of the inner chamber, expand the surface area exposed to light, alter the hydrodynamics within the photopanel as well as distribute light as light guides to facilitate homogenization of light exposure to individual cells. The bridging elements also have features that allow utilization of direct light beams with shallow grazing angles.
    Type: Application
    Filed: February 1, 2013
    Publication date: June 6, 2013
    Inventor: David Shih-Wei Chou
  • Publication number: 20120115217
    Abstract: A device and system for growing a photosynthetic culture is provided which employs one or a plurality of vertically disposed photopanels having interior cavities configured for holding liquid and the photosynthetic culture such as algae. The inner chamber of the photopanels may have a shape that is structurally supported by bridging elements. The bridging elements may be formed as stepped cones that may function as light guides to the interior chamber.
    Type: Application
    Filed: December 15, 2011
    Publication date: May 10, 2012
    Inventor: David Shih-Wei Chou
  • Publication number: 20110306121
    Abstract: A device and system for growing of a photosynthetic culture is provided which employs one or a plurality of vertically disposed photopanels having interior cavities configured for holding liquid and the photosynthetic culture such as algae. Interior surfaces are enhanced in size by projections defined by deformation in sidewalls of the photopanels. The projections communicate between the sidewalls also providing structural integrity to the photopanel and allowing for thinner sidewalls and increased light transmission therethrough. The system may employ a support rack and pivotal mount to each such photopanel to allow positioning adjacent to each other in rows. Pivoting during different lighting conditions afforded the racked photopanels provides a manner to reduce light blockage to individual photo panels from adjacent photopanels.
    Type: Application
    Filed: June 15, 2011
    Publication date: December 15, 2011
    Inventor: David Shih-Wei Chou M.D.