Patents by Inventor Roberto Rodriguez

Roberto Rodriguez 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).

  • Suppression of electroendosmosis in capillary electrophoresis
    Patent number: 5069766
    Abstract: Spontaneous and undesired electroendosmosis in a capillary during an electrophoretic separation procedure is suppressed by the inclusion of a viscosity-raising additive in one or both of the electrode chamber solutions. The additive is either a viscous water-soluble polymer, a hydrophilic gel, or a combination of the two.
    Type: Grant
    Filed: December 20, 1990
    Date of Patent: December 3, 1991
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Ming-De Zhu, Roberto Rodriguez, C. Timothy Wehr
  • Hot-tray manipulating device
    Patent number: 4171144
    Abstract: A device for lifting and manipulating hot trays, principally aluminum foil containers for food products, is constructed with a substantially tubular, insulating handle, and a pair of cranked tines projecting from the forward end of the handle. The separation between the tines, corresponding to the lateral dimension of the tray to be lifted, is adjustable by means of radial slots machined around the periphery of a bezel in the forward end of the handle and by allowing for the radial displacement of one, or both, of the cranked tines in the handle into engagement with a particular slot.
    Type: Grant
    Filed: December 5, 1977
    Date of Patent: October 16, 1979
    Inventor: Roberto Rodriguez