Patents by Inventor Douglas J. Port

Douglas J. Port 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).

  • Wearable lighting device
    Patent number: 9155168
    Abstract: A user wearable device may be implemented with a light source to provide illumination to an area of interest. In one example, the light source may be selectively operated by switches, physical displacement (e.g., movement) of the device, or other approaches. In another example, the device may be implemented as a wristwatch to display time, date, or related information to a user. In another example, the device may be implemented with appropriate processing or communication components to perform other tasks. In other embodiments, various methods of using, operating, or manufacturing such devices are provided.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: October 6, 2015
    Assignee: SureFire, LLC
    Inventors: Luis Araujo, Kevin Skehan, Douglas J. Port, Ammar Burayez
  • Adjustable cartridge pen housing
    Patent number: 8282297
    Abstract: A writing instrument having a housing accommodating various sizes and lengths of cartridges fixed inside the housing by an adjustable control element. In its correct placement, the cartridge will abut against one end of the control element and will be held in place with a spring at the other end, such that the user may write steadily with the pen.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: October 9, 2012
    Assignee: Surefire, LLC
    Inventors: Steven T. Ryan, Douglas J. Port
  • WEARABLE LIGHTING DEVICE
    Publication number: 20120140451
    Abstract: A user wearable device may be implemented with a light source to provide illumination to an area of interest. In one example, the light source may be selectively operated by switches, physical displacement (e.g., movement) of the device, or other approaches. In another example, the device may be implemented as a wristwatch to display time, date, or related information to a user. In another example, the device may be implemented with appropriate processing or communication components to perform other tasks. In other embodiments, various methods of using, operating, or manufacturing such devices are provided.
    Type: Application
    Filed: December 3, 2010
    Publication date: June 7, 2012
    Applicant: SUREFIRE, LLC
    Inventors: Luis Araujo, Kevin Skehan, Douglas J. Port
  • Adjustable cartridge pen housing
    Publication number: 20100150639
    Abstract: A writing instrument having a housing accommodating various sizes and lengths of cartridges fixed inside the housing by an adjustable control element. In its correct placement, the cartridge will abut against one end of the control element and will be held in place with a spring at the other end, such that the user may write steadily with the pen.
    Type: Application
    Filed: December 11, 2008
    Publication date: June 17, 2010
    Inventors: Steven T. Ryan, Douglas J. Port
  • Folding knife
    Patent number: D634174
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: March 15, 2011
    Assignee: SureFire, LLC
    Inventors: Steven T. Ryan, Douglas J. Port
  • Lighting device
    Patent number: D639478
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: June 7, 2011
    Assignee: SureFire, LLC
    Inventors: Loc Nguyen, Douglas J. Port
  • Folding knife
    Patent number: D642888
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: August 9, 2011
    Assignee: SureFire, LLC
    Inventors: Douglas J. Port, Timothy LaFrance
  • Lighting device
    Patent number: D644775
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: September 6, 2011
    Assignee: SureFire, LLC
    Inventors: Loc Nguyen, Douglas J. Port
  • Wearable lighting device
    Patent number: D649272
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: November 22, 2011
    Assignee: SureFire, LLC
    Inventors: Luis Araujo, Kevin Skehan, Douglas J. Port
  • Wearable lighting device
    Patent number: D676991
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: February 26, 2013
    Assignee: SureFire, LLC
    Inventors: Luis Araujo, Kevin Skehan, Douglas J. Port, John W. Matthews
  • Wearable lighting device
    Patent number: D690855
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: October 1, 2013
    Assignee: SureFire, LLC
    Inventors: Luis Araujo, Kevin Skehan, Douglas J. Port, John W. Matthews
  • Wearable lighting device
    Patent number: D758628
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: June 7, 2016
    Assignee: SureFire, LLC
    Inventors: Douglas J. Port, Luis Araujo, Kevin Skehan
  • Wearable lighting device
    Patent number: D758629
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: June 7, 2016
    Assignee: SureFire, LLC
    Inventors: John W. Matthews, Douglas J. Port, Luis Araujo, Kevin Skehan
  • Wearable lighting device
    Patent number: D790097
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: June 20, 2017
    Assignee: SureFire, LLC
    Inventor: Douglas J. Port