Patents by Inventor Alejandro Castillo

Alejandro Castillo 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: 10801268
    Abstract: A drill bit with individually-balanced cutting elements. The working surface of the cutters includes a balancing feature, such as an elongate ridge, and a balancing line that extends along the length of the feature, and through the center of the working surface. The cutters are positioned in the bit so that the working surface of each cutter removes formation material in an area of cut, and so that the cutter's balancing line passes through a centroid of its area of cut. A method for making a bit with individually-balanced cutters includes positioning cutters in the bit so that a cutter's balancing line passes through a selected centroid of the cutter's area of cut.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: October 13, 2020
    Assignee: National Oilwell DHT, L.P.
    Inventors: Reza Rahmani, Alejandro Castillo
  • Publication number: 20180291690
    Abstract: A drill bit with individually-balanced cutting elements. The working surface of the cutters includes a balancing feature, such as an elongate ridge, and a balancing line that extends along the length of the feature, and through the center of the working surface. The cutters are positioned in the bit so that the working surface of each cutter removes formation material in an area of cut, and so that the cutter's balancing line passes through a centroid of its area of cut. A method for making a bit with individually-balanced cutters includes positioning cutters in the bit so that a cutter's balancing line passes through a selected centroid of the cutter's area of cut.
    Type: Application
    Filed: September 21, 2016
    Publication date: October 11, 2018
    Applicant: National Oilwell DHT, L.P.
    Inventors: Reza RAHMANI, Alejandro CASTILLO
  • Patent number: 8008640
    Abstract: The present invention includes a system, methods and apparatus for sterilization of an object (e.g., food products). The present invention takes advantage of the electron scatter that occurs when electron beam is applied onto a surface. The present invention is capable of treating irregular surfaces (e.g., carcasses, spherical/round surfaces) or any type of surface where complete penetration is not needed or desired.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: August 30, 2011
    Assignee: The Texas A&M University System
    Inventors: Joseph E. Maxim, Jack A. Neal, Alejandro Castillo
  • Publication number: 20100001206
    Abstract: The present invention includes a system, methods and apparatus for sterilization of an object (e.g., food products). The present invention takes advantage of the electron scatter that occurs when electron beam is applied onto a surface. The present invention is capable of treating irregular surfaces (e.g., carcasses, spherical/round surfaces) or any type of surface where complete penetration is not needed or desired.
    Type: Application
    Filed: July 1, 2009
    Publication date: January 7, 2010
    Applicant: The Texas A&M University System
    Inventors: Joseph E. Maxim, Jack A. Neal, Alejandro Castillo
  • Publication number: 20070065413
    Abstract: Acid compositions for ruminants containing a plurality of acid-neutralizing salts with pKa's effective at different ruminant gastrointestinal pH ranges and an active probiotic culture capable of stimulating the growth and concentration of beneficial acid-consuming rumen microorganisms. Methods for preventing clinical and sub-clinical acidosis in ruminants with the acid-neutralizing salts and feed compositions to which the acid-neutralizing salts have been added are also disclosed.
    Type: Application
    Filed: September 21, 2006
    Publication date: March 22, 2007
    Inventor: Alejandro Castillo