Patents by Inventor Donald Lu

Donald Lu 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).

  • Schanz screw wrench combination tool
    Patent number: 10933516
    Abstract: A wrench device includes a proximal member including a first recess and a second recess open to the first recess. The second recess has a width smaller than the first recess. The first recess receives a first screw and the second recess receives a second screw smaller in diameter than the first screw. The device also includes a distal member coupled to the proximal member. The distal member includes a first recess, a second recess open to the first recess, and a third recess open to the second. The first recess has a width larger than a diameter of the second recess. The second recess has a diameter larger than the third recess. When the proximal and distal members are coupled, the first and second recesses of the proximal member are in open communication with the first, second and third recesses of the distal member.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: March 2, 2021
    Assignee: DEPUY SYNTHES PRODUCTS, INC.
    Inventors: Jeffrey Darrow, Steven Krevitski, Kory Smith, Robert Mazzarello, Donald Lu
  • SCHANZ SCREW WRENCH COMBINATION TOOL
    Publication number: 20200139517
    Abstract: A wrench device includes a proximal member including a first recess and a second recess open to the first recess. The second recess has a width smaller than the first recess. The first recess receives a first screw and the second recess receives a second screw smaller in diameter than the first screw. The device also includes a distal member coupled to the proximal member. The distal member includes a first recess, a second recess open to the first recess, and a third recess open to the second. The first recess has a width larger than a diameter of the second recess. The second recess has a diameter larger than the third recess. When the proximal and distal members are coupled, the first and second recesses of the proximal member are in open communication with the first, second and third recesses of the distal member.
    Type: Application
    Filed: November 1, 2018
    Publication date: May 7, 2020
    Inventors: Jeffrey Darrow, Steven Krevitski, Kory Smith, Robert Mazzarello, Donald Lu