Patents by Inventor David Erwin

David Erwin 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).

  • Publication number: 20260096625
    Abstract: An article of footwear includes a door, positioned in a rear portion of an upper of the article of footwear. The door is movable between a first, closed position, and a second, open position. In the closed position, the door is releasably secured to an adjacent portion of the upper. In the open position, the door is releasably held in the open position, and a foot of the user may be inserted into or removed from the article. An actuator is in cooperative engagement with the door. The actuator is positioned in or on a rear portion of a heel and configured to be actuated only via striking a rear portion of the heel of the footwear on the back. Responsive to actuation of the actuator, the door moves between the closed position and the open position, thereby permitting hands-free donning and removal of the article of footwear.
    Type: Application
    Filed: June 9, 2025
    Publication date: April 9, 2026
    Inventor: David Erwin
  • Patent number: 12324476
    Abstract: An article of footwear includes a door, positioned in a rear portion of an upper of the article of footwear. The door is movable between a first, closed position, and a second, open position. In the closed position, the door is releasably secured to an adjacent portion of the upper. In the open position, the door is releasably held in the open position, and a foot of the user may be inserted into or removed from the article. An actuator is in cooperative engagement with the door. The actuator is positioned in or on a rear portion of a heel and configured to be actuated only via striking a rear portion of the heel of the footwear on the back. Responsive to actuation of the actuator, the door moves between the closed position and the open position, thereby permitting hands-free donning and removal of the article of footwear.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: June 10, 2025
    Inventor: David Erwin
  • Publication number: 20210186146
    Abstract: An article of footwear includes a door, positioned in a rear portion of an upper of the article of footwear. The door is movable between a first, closed position, and a second, open position. In the closed position, the door is releasably secured to an adjacent portion of the upper. In the open position, the door is releasably held in the open position, and a foot of the user may be inserted into or removed from the article. An actuator is in cooperative engagement with the door. The actuator is positioned in or on a rear portion of a heel and configured to be actuated only via striking a rear portion of the heel of the footwear on the back. Responsive to actuation of the actuator, the door moves between the closed position and the open position, thereby permitting hands-free donning and removal of the article of footwear.
    Type: Application
    Filed: December 17, 2020
    Publication date: June 24, 2021
    Inventor: David Erwin
  • Publication number: 20200047941
    Abstract: A carton (1) having a first end and a second end; a plurality of side panels (9, 11); and a sloping face at the first end of the carton. The sloping face is defined by a first triangular lid panel (3) at the first carton end. A first edge of the first triangular lid panel (3) is connected along a foldline (15) to the end of a first one of the side panels at the first carton end. The carton includes a second triangular lid panel (5) at the first end of the carton providing an end face for the carton at the first carton end. A first edge of the second triangular lid panel (5) is connected to a second edge of the first triangular lid panel (3) along a foldline (17). The carton includes a plurality of lid support panels underlying the first and second triangular lid panels (3,5) at the first carton end.
    Type: Application
    Filed: March 23, 2018
    Publication date: February 13, 2020
    Inventors: David Erwin, Nigel Davis
  • Patent number: 7313228
    Abstract: The present invention allows a subscriber to dynamically select one or more call processing options while an attempt to terminate an incoming call to an associated terminal is being made. As such, the terminal is either ringing or providing some other indication that an incoming call is being received. Throughout the process, the incoming call may be answered via the terminal. While the attempt to terminate the call is being made, an incoming call message is sent to a computing device associated with the subscriber. The computing device, upon receiving the incoming call message, will provide one or more call processing options to the subscriber. If the subscriber selects one of the call processing options, the computing device will send a subscriber response message identifying the selected call processing option. Based on the selected call processing option, the incoming call will be processed accordingly.
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: December 25, 2007
    Assignee: Nortel Networks Limited
    Inventors: Stephen Sorice, Rajeshwari Zala, Ketan Shah, Patrick S. Wood, David Erwin, Matthew Keller, Paresh Mehta