Patents by Inventor Louis S. Glesser

Louis S. Glesser 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: 8393069
    Abstract: A writing instrument comprising a writing utensil and associated handles interconnected to each other to allow a user to selectively position the writing utensil in either an extended position of use or a closed position of storage, as well as a variety of positions there between. In an open position, the handles may be positioned adjacent one another with the writing utensil extended longitudinally away from the adjacent handles in a position of use. In a closed position, the handles may be positioned adjacent to the longitudinal length of the writing utensil, with the writing utensil at least partially enclosed between the handles in a position of storage. The rotation of the handles about the writing utensil allows a user to manipulate the handles in a variety of ways, similar to that of a “butterfly knife” or similar device comprising balisong style openings.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: March 12, 2013
    Assignee: Spyderco, Inc.
    Inventors: Louis S. Glesser, Eric G. Glesser
  • Patent number: 8147159
    Abstract: A hand-held instrument comprising a writing utensil and associated handles interconnected to each other to allow a user to selectively position the writing utensil in either an extended position of use or a closed position of storage, as well as a variety of positions there between. The writing utensil may take a variety of forms, and the handles may incorporate additional devices or tools. The rotation of the handles about the writing utensil allows a user to manipulate the handles in a variety of ways, similar to that of a “butterfly knife” or similar device comprising balisong style openings. In one aspect of the invention, the writing instrument may be used to perform moves or tricks as a novelty device to provide entertainment and enjoyment to a user.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: April 3, 2012
    Assignee: Spyderco, Inc.
    Inventors: Louis S. Glesser, Eric G. Glesser
  • Publication number: 20090140456
    Abstract: A writing instrument comprising a writing utensil and associated handles interconnected to each other to allow a user to selectively position the writing utensil in either an extended position of use or a closed position of storage, as well as a variety of positions there between. In an open position, the handles may be positioned adjacent one another with the writing utensil extended longitudinally away from the adjacent handles in a position of use. In a closed position, the handles may be positioned adjacent to the longitudinal length of the writing utensil, with the writing utensil at least partially enclosed between the handles in a position of storage. The rotation of the handles about the writing utensil allows a user to manipulate the handles in a variety of ways, similar to that of a “butterfly knife” or similar device comprising balisong style openings.
    Type: Application
    Filed: October 8, 2008
    Publication date: June 4, 2009
    Applicant: Spyderco, Inc
    Inventors: Louis S. Glesser, Eric G. Glesser
  • Publication number: 20090142127
    Abstract: A hand-held instrument comprising a writing utensil and associated handles interconnected to each other to allow a user to selectively position the writing utensil in either an extended position of use or a closed position of storage, as well as a variety of positions there between. The writing utensil may take a variety of forms, and the handles may incorporate additional devices or tools. The rotation of the handles about the writing utensil allows a user to manipulate the handles in a variety of ways, similar to that of a “butterfly knife” or similar device comprising balisong style openings. In one aspect of the invention, the writing instrument may be used to perform moves or tricks as a novelty device to provide entertainment and enjoyment to a user.
    Type: Application
    Filed: November 29, 2007
    Publication date: June 4, 2009
    Applicant: SPYDERCO, INC.
    Inventors: Louis S. Glesser, Eric G. Glesser
  • Patent number: 6918184
    Abstract: The present invention relates to folding knives and implements, and more specifically to a locking mechanism used to prevent the inadvertent closing of the knife blade as well as overextension of the knife blade during use.
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: July 19, 2005
    Assignee: Spyderco, Inc.
    Inventor: Louis S. Glesser
  • Patent number: 6751868
    Abstract: This invention relates to folding knives, and more particularly folding knives which have locking mechanisms which engage the knife blade to prevent the inadvertent closing of the knife blade.
    Type: Grant
    Filed: February 1, 2002
    Date of Patent: June 22, 2004
    Assignee: Spyderco, Inc.
    Inventor: Louis S. Glesser
  • Publication number: 20040045170
    Abstract: The present invention relates to folding knives and implements, and more specifically to a locking mechanism used to prevent the inadvertent closing of the knife blade as well as overextension of the knife blade during use.
    Type: Application
    Filed: September 10, 2002
    Publication date: March 11, 2004
    Inventor: Louis S. Glesser
  • Publication number: 20030145468
    Abstract: This invention relates to folding knives, and more particularly folding knives which have locking mechanisms which engage the knife blade to prevent the inadvertent closing of the knife blade.
    Type: Application
    Filed: February 1, 2002
    Publication date: August 7, 2003
    Inventor: Louis S. Glesser
  • Patent number: 6553672
    Abstract: A folding knife locking mechanism is provided which prevents the inadvertent closure of a knife blade by utilizing a releasable tang which is compressed between the heel end of the folding knife blade and a stop pin.
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: April 29, 2003
    Assignee: Spyderco, Inc.
    Inventors: Louis S. Glesser, Peter H. Jhones, Vince Ford
  • Publication number: 20030046818
    Abstract: A blade is provided which has a shroud extending outwardly from an upper edge of said knife blade for engaging a user's thumb during use, and for assisting a user to open said knife blade when interconnected to a folding knife handle.
    Type: Application
    Filed: September 12, 2001
    Publication date: March 13, 2003
    Inventor: Louis S. Glesser
  • Publication number: 20020000042
    Abstract: A folding knife locking mechanism is provided which prevents the inadvertent closure of a knife blade by utilizing a releasable tang which is compressed between the heel end of the folding knife blade and a stop pin.
    Type: Application
    Filed: February 22, 2001
    Publication date: January 3, 2002
    Inventors: Louis S. Glesser, Peter H. Jhones, Vince Ford
  • Patent number: 6205667
    Abstract: A handheld knife having a non-rotating retractable blade which reversibly travels between a position of storage within the knife handle and an extended position of use in a direction which is substantially perpendicular to a longitudinal axis of the knife handle.
    Type: Grant
    Filed: February 15, 1999
    Date of Patent: March 27, 2001
    Assignee: Spyderco, Inc.
    Inventor: Louis S. Glesser
  • Patent number: D442052
    Type: Grant
    Filed: February 23, 2000
    Date of Patent: May 15, 2001
    Assignee: Spyderco, Inc.
    Inventor: Louis S. Glesser
  • Patent number: D442460
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: May 22, 2001
    Assignee: Spyderco, Inc.
    Inventor: Louis S. Glesser
  • Patent number: D442461
    Type: Grant
    Filed: March 30, 2000
    Date of Patent: May 22, 2001
    Assignee: Spyderco, Inc.
    Inventor: Louis S. Glesser
  • Patent number: D444093
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: June 26, 2001
    Inventor: Louis S. Glesser
  • Patent number: D461387
    Type: Grant
    Filed: June 27, 2001
    Date of Patent: August 13, 2002
    Assignee: Spyderco, Inc.
    Inventor: Louis S. Glesser
  • Patent number: D464551
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: October 22, 2002
    Assignee: Spyderco, Inc.
    Inventor: Louis S. Glesser
  • Patent number: D581240
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: November 25, 2008
    Assignee: Spyderco, Inc.
    Inventors: Louis S. Glesser, Craig S. Douglas, Tracey H. Rinaldi
  • Patent number: D604765
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: November 24, 2009
    Inventors: Louis S. Glesser, Eric G. Glesser