Patents by Inventor Gordon D. Donald

Gordon D. Donald 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: 11332840
    Abstract: A method of preparing a modified-metal surface by attaching a phosphorous-based acid to a surface of a metal: preparing a solution of the phosphorous-based acid in a protic solvent; immersing a strip of a metal work piece into the solution of the phosphorous-based acid, immersing a strip of a reference metal into the solution of the phosphorous-based acid, supplying a voltage for a duration of time, removing the metal work piece, cleaning the metal work piece, and drying the cleaned metal work piece under an inert atmosphere to obtain a modified metal work piece.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: May 17, 2022
    Assignee: Molecular Surface Technologies, LLC
    Inventors: Randell Clevenger, Gordon D. Donald
  • Publication number: 20210207282
    Abstract: A method of preparing a modified-metal surface by attaching a phosphorous-based acid to a surface of a metal: preparing a solution of the phosphorous-based acid in a protic solvent; immersing a strip of a metal work piece into the solution of the phosphorous-based acid, immersing a strip of a reference metal into the solution of the phosphorous-based acid, supplying a voltage for a duration of time, removing the metal work piece, cleaning the metal work piece, and drying the cleaned metal work piece under an inert atmosphere to obtain a modified metal work piece.
    Type: Application
    Filed: December 28, 2020
    Publication date: July 8, 2021
    Inventors: Randell Clevenger, Gordon D. Donald
  • Patent number: 10952718
    Abstract: A retractor system is provided having a plurality of blade portions that collectively present a low profile tapered configuration for insertion through tissue along a natural tissue plane. Once inserted through tissue the blade portions may be independently moved apart to form an access path to a surgical site, such as by first moving the blade portions apart along the natural tissue plane followed by moving the blade portions apart transverse to the natural tissue plane. The blade portions may be attached to retractor frame members, and rack and pinion frame components may be used to control movement of the blade portions relative to one another. Pins may be used to secure the blade portions to bone.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: March 23, 2021
    Inventor: Gordon D. Donald
  • Publication number: 20200404905
    Abstract: A method of preparing a modified-metal surface. The method includes preparing a solution of a phosphorous-based acid in a solvent; immersing a strip of the metal work piece into the solution of the phosphorous-based acid; immersing a strip of a reference metal into the solution of the phosphorous-based acid; supplying a voltage for a duration of time to prepare a phosphorous acid-modified metal work piece; removing the phosphorous acid-modified metal work piece; cleaning and drying the phosphorous acid-modified metal work piece; applying a chitosan solution to the surface in order to attach chitosan/modified chitosan to the phosphorous acid based modified surface; prepare the modified-metal surface; and cleaning and drying the modified-metal surface.
    Type: Application
    Filed: June 19, 2020
    Publication date: December 31, 2020
    Inventors: Randell Clevenger, Gordon D. Donald, Cheoljin Kim
  • Patent number: 10876217
    Abstract: A method of preparing a modified-metal surface by attaching a phosphorous-based acid to a surface of a metal: preparing a solution of the phosphorous-based acid in a protic solvent; immersing a strip of a metal work piece into the solution of the phosphorous-based acid, immersing a strip of a reference metal into the solution of the phosphorous-based acid, supplying a voltage for a duration of time, removing the metal work piece, cleaning the metal work piece, and drying the cleaned metal work piece under an inert atmosphere to obtain a modified metal work piece.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: December 29, 2020
    Assignee: Molecular Surface Technologies, LLC
    Inventors: Randell Clevenger, Gordon D. Donald
  • Publication number: 20200289178
    Abstract: Self-aligning plating systems and methods are disclosed. The self-aligning plating system may include an interbody spacer, a medical device plate, and an insertion member. The interbody spacer may be inserted between a top vertebra and a bottom vertebra of a patient's spinal column. A medical device plate may slide along an insertion member in operable connectivity with the interbody spacer so that the medical device plate comes into contact with and can be secured to the patient's anatomy.
    Type: Application
    Filed: January 13, 2020
    Publication date: September 17, 2020
    Inventors: Gordon D Donald, Arthur A Alfaro
  • Publication number: 20200206776
    Abstract: A method of photografting organic molecules to a metal oxide comprising: (a) contacting a substrate having a metal oxide layer on a surface thereof with an acrylate, derivative thereof or a photolabile functional group; and (b) exposing the metal oxide layer and the acrylate, derivative thereof or photolabile group to UV or visible radiation to form covalent bonds between the metal oxide and the acrylate, the derivative thereof or the photolabile.
    Type: Application
    Filed: December 26, 2019
    Publication date: July 2, 2020
    Inventors: Randell Clevenger, Gordon D. Donald
  • Publication number: 20200109483
    Abstract: A method of preparing a modified-metal surface by attaching a phosphorous-based acid to a surface of a metal: preparing a solution of the phosphorous-based acid in a protic solvent; immersing a strip of a metal work piece into the solution of the phosphorous-based acid, immersing a strip of a reference metal into the solution of the phosphorous-based acid, supplying a voltage for a duration of time, removing the metal work piece, cleaning the metal work piece, and drying the cleaned metal work piece under an inert atmosphere to obtain a modified metal work piece.
    Type: Application
    Filed: April 12, 2019
    Publication date: April 9, 2020
    Inventors: Randell Clevenger, Gordon D. Donald
  • Publication number: 20190167249
    Abstract: A retractor system is provided having a plurality of blade portions that collectively present a low profile tapered configuration for insertion through tissue along a natural tissue plane. Once inserted through tissue the blade portions may be independently moved apart to form an access path to a surgical site, such as by first moving the blade portions apart along the natural tissue plane followed by moving the blade portions apart transverse to the natural tissue plane. The blade portions may be attached to retractor frame members, and rack and pinion frame components may be used to control movement of the blade portions relative to one another. Pins may be used to secure the blade portions to bone.
    Type: Application
    Filed: February 4, 2019
    Publication date: June 6, 2019
    Inventor: Gordon D. Donald
  • Patent number: 10194896
    Abstract: A retractor system is provided having a plurality of blade portions that collectively present a low profile tapered configuration for insertion through tissue along a natural tissue plane. Once inserted through tissue the blade portions may be independently moved apart to form an access path to a surgical site, such as by first moving the blade portions apart along the natural tissue plane followed by moving the blade portions apart transverse to the natural tissue plane. The blade portions may be attached to retractor frame members, and rack and pinion frame components may be used to control movement of the blade portions relative to one another. Pins may be used to secure the blade portions to bone.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: February 5, 2019
    Inventor: Gordon D. Donald
  • Publication number: 20170020404
    Abstract: A neuromonitoring system comprises a plurality of needle electrodes, a ground electrode, a monopolar stimulating probe having an electrode tip and configured to be coupled to a cable, and a stimulating probe sleeve. The sleeve is adapted and configured to be removably coupled to the monopolar stimulating probe. The sleeve has a slot and is configured and adapted to coaxially slide relative to the monopolar stimulating probe between a first retracted position and a second advanced position. The electrode tip generates an omnidirectional signal when in use while the sleeve is in the retracted position or in an uncoupled position. The electrode tip generates a unidirectional signal when in use while the sleeve is in the advanced position.
    Type: Application
    Filed: March 30, 2015
    Publication date: January 26, 2017
    Inventor: Gordon D. Donald, III
  • Publication number: 20160374740
    Abstract: A surgical screw system comprising a cannulated screw, a guide wire and a driver. The screw has a head, a tubular body with a bore, and a tip opposite the head. The guide wire, shorter than the screw, is slidably disposed within the bore of the screw. The guide wire has a working end deployable beyond the tip of the screw, and the working end is sharpened to penetrate the bone and produce a pilot hole when an axial force is applied. The guide wire extends to deploy the working end beyond the tip to create the pilot hole, and fully retracts into the screw upon installation of the screw. The driver passes through the head of the screw into the bore, and applies the axial force to the guide wire. The driver may be used to drive the screw into the bone, and is removable from the screw.
    Type: Application
    Filed: June 23, 2016
    Publication date: December 29, 2016
    Inventor: GORDON D. DONALD
  • Publication number: 20160374659
    Abstract: A distracting portal device for use between two adjacent vertebrae during an intervertebral surgical procedure. The distracting portal device is a three-dimensional object having a two-dimensional cross-section extended into a third dimension, where the cross-section has a shape which defines one or two portal openings. Each portal opening creates a space between the vertebrae into which a surgeon has clear access to perform the surgical procedure, such as a discectomy. Opposing top and bottom surfaces of the portal device are configured for contact with and distraction of the two adjacent vertebrae. The portal device is selected from a family having a single portal opening and having a cross-section resembling one of the letters “C”, “O” or “U”, or a family having two portal openings and having a cross-section resembling one of the letters “H” or “I”.
    Type: Application
    Filed: June 23, 2016
    Publication date: December 29, 2016
    Inventor: GORDON D. DONALD
  • Publication number: 20160374828
    Abstract: A modular implant device for placement between two adjacent vertebrae during a surgical procedure. The implant device comprises a distractor/nosecone portion configured for placement in a first location between the vertebrae and providing distraction and fixation of a desired vertical separation between the vertebrae at the first location. An alignment guide being a long slender element has a first end inserted into the distractor/nosecone portion and extending away from the distractor/nosecone portion, where the alignment guide is used to position the distractor/nosecone portion in the first location between the vertebrae. A body portion is configured for placement in a second location between the vertebrae, providing distraction and fixation of a desired vertical separation between the vertebrae at the second location, where the body portion includes a bore to receive the alignment guide, and the body portion is translated along the alignment guide into position between the vertebrae.
    Type: Application
    Filed: June 23, 2016
    Publication date: December 29, 2016
    Inventor: GORDON D. DONALD
  • Publication number: 20160120532
    Abstract: A retractor system is provided having a plurality of blade portions that collectively present a low profile tapered configuration for insertion through tissue along a natural tissue plane. Once inserted through tissue the blade portions may be independently moved apart to form an access path to a surgical site, such as by first moving the blade portions apart along the natural tissue plane followed by moving the blade portions apart transverse to the natural tissue plane. The blade portions may be attached to retractor frame members, and rack and pinion frame components may be used to control movement of the blade portions relative to one another. Pins may be used to secure the blade portions to bone.
    Type: Application
    Filed: November 3, 2015
    Publication date: May 5, 2016
    Inventor: Gordon D. Donald
  • Patent number: 8603098
    Abstract: Provided is a system and devices for use in the treatment and repair of moveable skeletal joints in the body of a subject. In particular, the present invention relates to the complete or partial posterior modular disc replacement of damaged or diseased fibrocartilage intervertebral discs in a subject wherein the replacement disc is capable of rotation and translation articulation.
    Type: Grant
    Filed: September 11, 2006
    Date of Patent: December 10, 2013
    Assignee: K2M, Inc.
    Inventors: Richard W. Woods, Hallett H. Mathews, Richard D. Guyer, Charles S. Theofolis, Gordon D. Donald, Jean-Jaques Abitol