Patents by Inventor Derek Michael Underhill

Derek Michael Underhill 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).

  • Portable Rechargeable Battery Jump Starting Device
    Publication number: 20260145554
    Abstract: A rechargeable battery jump starting device having a highly conductive electrical pathway from a rechargeable battery of the device to a vehicle battery being jump started. The highly conductive pathway can be provided by a highly electrically conductive frame connecting one or more batteries of the rechargeable battery jump starting device to battery clamps of the rechargeable battery jump starting device.
    Type: Application
    Filed: December 3, 2025
    Publication date: May 28, 2026
    Inventors: Jonathan Lewis NOOK, William Knight NOOK, James Richard STANFIELD, Derek Michael UNDERHILL
  • Battery charging device for charging a deeply discharged battery, and battery charging system and method
    Patent number: 12609550
    Abstract: Provided is a method of charging a deeply discharged battery using a battery charging device, the method including measuring the output voltage of the deeply discharged battery using the battery charging device, and if the output voltage is at or near zero (0) volts, charging the deeply discharged battery using the battery charging device in a forced mode.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: April 21, 2026
    Assignee: The Noco Company
    Inventors: James P. McBride, James Richard Stanfield, Derek Michael Underhill, Jonathan Lewis Nook
  • Portable Vehicle Battery Jump Start Apparatus With Safety Protection
    Publication number: 20260034901
    Abstract: A handheld jump starter device includes a rechargeable lithium battery pack comprising at least three lithium battery cells, a housing for enclosing the rechargeable lithium battery pack, and a jumper cable assembly removably attachable to the housing, the jumper cable assembly comprising a plug and a pair of cables, wherein the plug is configured to attach to the housing in a specific orientation.
    Type: Application
    Filed: June 25, 2025
    Publication date: February 5, 2026
    Inventors: Jonathan Lewis NOOK, William Knight NOOK, James Richard STANFIELD, Derek Michael UNDERHILL
  • Portable rechargeable battery jump starting device
    Patent number: 12515542
    Abstract: A rechargeable battery jump starting device having a highly conductive electrical pathway from a rechargeable battery of the device to a vehicle battery being jump started. The highly conductive pathway can be provided by a highly electrically conductive frame connecting one or more batteries of the rechargeable battery jump starting device to battery clamps of the rechargeable battery jump starting device.
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: January 6, 2026
    Assignee: The Noco Company
    Inventors: Jonathan Lewis Nook, William Knight Nook, James Richard Stanfield, Derek Michael Underhill
  • Rechargeable battery jump starting device with depleted or discharged battery pre-conditioning system
    Patent number: 12448941
    Abstract: A rechargeable battery jump starting device with a discharged battery pre-conditioning system to facilitate boosting the discharged battery to jump start a vehicle or equipment engine. The pre-conditioning increases the operating voltage to the discharged battery during the pre-conditioning phase.
    Type: Grant
    Filed: August 3, 2023
    Date of Patent: October 21, 2025
    Assignee: The Noco Company
    Inventors: Jonathan Lewis Nook, William Knight Nook, Sr., James Richard Stanfield, Derek Michael Underhill
  • Rechargeable battery jump starting device with control switch and optical position sensing switch system
    Patent number: 12451707
    Abstract: Disclosed herein are a rechargeable battery jump starting device with a control switch (e.g. rotary control switch) and an optical position sensing switch system to determine a position of the control switch. The optical position sensing switch system includes an optical position sensor using optical coupling to insure an integrity of isolation on a 12V to 24V master switch to allow for a safe and effective operation, and configured so that a microcontroller unit reads a position on the master switch.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: October 21, 2025
    Assignee: The Noco Company
    Inventors: Jonathan Lewis Nook, William Knight Nook, Sr., James Richard Stanfield, Derek Michael Underhill
  • Jump starting device
    Patent number: D1096613
    Type: Grant
    Filed: August 5, 2022
    Date of Patent: October 7, 2025
    Assignee: The Noco Company
    Inventors: Derek Michael Underhill, Jonathan Lewis Nook
  • Portable air compressor
    Patent number: D1098203
    Type: Grant
    Filed: November 14, 2023
    Date of Patent: October 14, 2025
    Assignee: The Noco Company
    Inventors: Derek Michael Underhill, Matthew Michael Bosway, Jonathan Lewis Nook, William Knight Nook, Sr., James Richard Stanfield
  • Jump starting device
    Patent number: D1102372
    Type: Grant
    Filed: June 24, 2022
    Date of Patent: November 18, 2025
    Assignee: The Noco Company
    Inventors: Derek Michael Underhill, Jonathan Lewis Nook
  • Battery charger
    Patent number: D1113659
    Type: Grant
    Filed: May 2, 2023
    Date of Patent: February 17, 2026
    Assignee: The Noco Company
    Inventors: Derek Michael Underhill, Jonathan Lewis Nook
  • Battery cable assembly
    Patent number: D1113756
    Type: Grant
    Filed: May 23, 2023
    Date of Patent: February 17, 2026
    Assignee: The Noco Company
    Inventors: Derek Michael Underhill, Jonathan Lewis Nook
  • Battery clamp
    Patent number: D1118522
    Type: Grant
    Filed: June 14, 2023
    Date of Patent: March 17, 2026
    Assignee: The Noco Company
    Inventors: Jonathan Lewis Nook, William Knight Nook, James Richard Stanfield, Derek Michael Underhill
  • Busbar for a battery
    Patent number: D1118523
    Type: Grant
    Filed: June 3, 2025
    Date of Patent: March 17, 2026
    Assignee: The Noco Company
    Inventors: James Patrick McBride, Derek Michael Underhill, Matthew Filippelli
  • Battery charger
    Patent number: D1119764
    Type: Grant
    Filed: February 9, 2023
    Date of Patent: March 24, 2026
    Assignee: The Noco Company
    Inventors: Derek Michael Underhill, Jonathan Lewis Nook
  • Battery handle
    Patent number: D1123854
    Type: Grant
    Filed: August 8, 2023
    Date of Patent: April 28, 2026
    Assignee: The Noco Company
    Inventors: Jonathan Lewis Nook, Derek Michael Underhill, Tyler Lippert
  • Battery cage
    Patent number: D1125059
    Type: Grant
    Filed: August 8, 2023
    Date of Patent: May 5, 2026
    Assignee: The Noco Company
    Inventors: Jonathan Lewis Nook, Derek Michael Underhill, Tyler Lippert
  • Combined USB-C port with circuit board
    Patent number: D1126167
    Type: Grant
    Filed: January 13, 2025
    Date of Patent: May 12, 2026
    Assignee: The Noco Company
    Inventors: Derek Michael Underhill, Ifechukwude Christian Iwerunmor, Tom Situ, James P. McBride, James Richard Stanfield
  • Vacuum
    Patent number: D1128220
    Type: Grant
    Filed: September 30, 2024
    Date of Patent: May 26, 2026
    Assignee: The Noco Company
    Inventor: Derek Michael Underhill
  • Electrical port
    Patent number: D1131402
    Type: Grant
    Filed: October 2, 2024
    Date of Patent: June 23, 2026
    Assignee: The Noco Company
    Inventors: Jonathan Lewis Nook, William Knight Nook, Sr., James Richard Stanfield, Derek Michael Underhill
  • Electrical port
    Patent number: D1131404
    Type: Grant
    Filed: October 2, 2024
    Date of Patent: June 23, 2026
    Assignee: The Noco Company
    Inventors: Jonathan Lewis Nook, William Knight Nook, Sr., James Richard Stanfield, Derek Michael Underhill