Patents by Inventor Sergio E. Bravo

Sergio E. Bravo 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).

  • Process for irradiation producing constant depth/dose profile
    Patent number: 6180951
    Abstract: Irradiation of a target material disposed around a reel rotated about an axis perpendicular to the sweep of a beam of radiation produces a linear relationship between the depth into the target material and the radiation dose received. Where the core of the reel is sufficiently transparent to the radiation beam, target material located on the backside of the reel is also irradiated, creating a constant relationship between depth into the target material and the radiation dose received. The depth/dose profile can be tuned to a constant value by varying parameters of the irradiation process, such as target material thickness, target material density, reel diameter, and energy of the applied beam of radiation.
    Type: Grant
    Filed: August 6, 1999
    Date of Patent: January 30, 2001
    Assignee: Nutek Corporation
    Inventors: Edward J. Joehnk, Sergio E. Bravo