Patents by Inventor David Kopel

David Kopel 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).

  • System for avoiding credit card loss
    Patent number: 9622555
    Abstract: A system for detecting when a credit card is withdrawn, or otherwise becomes missing, from a user's wallet and for alerting the user when he has moved a certain distance away from his original location without replacing the card.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: April 18, 2017
    Inventors: David Kopel, Mark Ronald Schwab
  • SYSTEM FOR AVOIDING CREDIT CARD LOSS
    Publication number: 20160000196
    Abstract: A system for detecting when a credit card is withdrawn, or otherwise becomes missing, from a user's wallet and for alerting the user when he has moved a certain distance away from his original location without replacing the card.
    Type: Application
    Filed: July 6, 2015
    Publication date: January 7, 2016
    Inventor: David Kopel
  • Purse having reversible exterior flap
    Patent number: 5649581
    Abstract: A purse construction has an exterior flap which can be selectively reversed to orient either a first or second flap surface outwardly.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: July 22, 1997
    Assignee: Koltov, Inc.
    Inventor: David Kopel
  • Wallet incorporating credit card alarm system
    Patent number: 4890094
    Abstract: A nonrigid wallet structure formed by a flexible dielectric sheet carrying planar conductive material thereon and configured to define card accommodating compartments. The planar conductive material extends into the compartments and forms a card monitoring and alarm system.
    Type: Grant
    Filed: October 7, 1988
    Date of Patent: December 26, 1989
    Inventor: David Kopel
  • Combined purse and wallet
    Patent number: D332866
    Type: Grant
    Filed: May 13, 1991
    Date of Patent: February 2, 1993
    Assignee: Koltov, Inc.
    Inventors: David Kopel, John I. Cisowski
  • Combined purse and wallet
    Patent number: D338334
    Type: Grant
    Filed: November 20, 1992
    Date of Patent: August 17, 1993
    Assignee: Koltov, Inc.
    Inventors: David Kopel, John I. Cisowski
  • Combined eyeglass case and wallet
    Patent number: D351945
    Type: Grant
    Filed: August 6, 1993
    Date of Patent: November 1, 1994
    Assignee: Koltov, Inc.
    Inventor: David Kopel
  • Combined purse and wallet
    Patent number: D356886
    Type: Grant
    Filed: August 6, 1993
    Date of Patent: April 4, 1995
    Assignee: Koltov, Inc.
    Inventors: David Kopel, John I. Cisowski
  • Combined purse and wallet
    Patent number: D358706
    Type: Grant
    Filed: September 2, 1994
    Date of Patent: May 30, 1995
    Assignee: Koltov, Inc.
    Inventor: David Kopel
  • Combined purse and wallet
    Patent number: D362751
    Type: Grant
    Filed: March 3, 1995
    Date of Patent: October 3, 1995
    Assignee: Koltov, Inc.
    Inventor: David Kopel
  • Fanny pack with exterior sunglass case
    Patent number: D371905
    Type: Grant
    Filed: October 7, 1994
    Date of Patent: July 23, 1996
    Inventor: David Kopel
  • Cellular telephone case
    Patent number: D382996
    Type: Grant
    Filed: April 3, 1995
    Date of Patent: September 2, 1997
    Assignee: Koltov, Inc.
    Inventor: David Kopel
  • Clutch sized bag expandable to tote bag
    Patent number: D383903
    Type: Grant
    Filed: August 23, 1995
    Date of Patent: September 23, 1997
    Assignee: Koltov, Inc.
    Inventor: David Kopel
  • Combined purse and sunglass case
    Patent number: D384810
    Type: Grant
    Filed: April 3, 1995
    Date of Patent: October 14, 1997
    Assignee: Koltov, Inc.
    Inventor: David Kopel
  • Clutch sized bag expandable to backpack
    Patent number: D386300
    Type: Grant
    Filed: August 23, 1995
    Date of Patent: November 18, 1997
    Assignee: Koltov, Inc.
    Inventor: David Kopel
  • Combined purse and organizer
    Patent number: D393366
    Type: Grant
    Filed: January 27, 1995
    Date of Patent: April 14, 1998
    Assignee: Koltov, Inc.
    Inventor: David Kopel