Patents by Inventor Louise Ellen Culham

Louise Ellen Culham 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).

  • Apparatus with timed color change indication
    Patent number: 9752902
    Abstract: A disposable ophthalmic or medical apparatus has a portion with a color changeable dye disposed thereon. The dye changes color after being exposed to oxygen for a controlled and predetermined period of time indicating that the apparatus should no longer be used.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: September 5, 2017
    Assignee: Sensor International LLC
    Inventors: Gregory Lee Heacock, Louise Ellen Culham
  • DISPOSABLE OPHTHALMIC/MEDICAL APPARATUS WITH TIMED COLOR CHANGE INDICATION
    Publication number: 20150377657
    Abstract: A disposable ophthalmic or medical apparatus has a portion with a color changeable dye disposed thereon. The dye changes color after being exposed to oxygen for a controlled and predetermined period of time indicating that the apparatus should no longer be used.
    Type: Application
    Filed: September 8, 2015
    Publication date: December 31, 2015
    Inventors: Gregory Lee Heacock, Louise Ellen Culham
  • Disposable ophthalmic/medical apparatus with timed color change indication
    Patent number: 9163961
    Abstract: A disposable ophthalmic or medical apparatus has a portion with a color changeable dye disposed thereon. The dye changes color after being exposed to oxygen for a controlled and predetermined period of time indicating that the apparatus should no longer be used.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: October 20, 2015
    Assignee: SENSOR INTERNATIONAL, LLC
    Inventors: Gregory Lee Heacock, Louise Ellen Culham
  • Apparatus with timed color change indication
    Patent number: 9134285
    Abstract: An apparatus with time controlled color change indication comprises an apparatus includes a disposable, limited or restricted use product and an oxygen sensing color changeable dye disposed on a portion of the apparatus, the dye being translucent or having a first color upon application and for a defined time thereafter and the dye changing color after exposure to oxygen for the defined time. For example, a packaging for containing a product for human consumption has a portion with a color changeable dye disposed thereon. The dye changes color after being exposed to oxygen for a controlled and predetermined period of time indicating that the product for human consumption should no longer be consume or has decreased in freshness, quality of taste or potency.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: September 15, 2015
    Assignee: SENSOR INTERNATIONAL, LLC
    Inventors: Gregory Lee Heacock, Louise Ellen Culham
  • Disposable ophthalmic/medical apparatus with timed color change indication
    Patent number: 8702237
    Abstract: A disposable ophthalmic or medical apparatus has a portion with a color changeable dye disposed thereon. The dye changes color after being exposed to oxygen for a controlled and predetermined period of time indicating that the apparatus should no longer be used.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: April 22, 2014
    Inventors: Gregory Lee Heacock, Louise Ellen Culham
  • APPARATUS WITH TIMED COLOR CHANGE INDICATION
    Publication number: 20130269592
    Abstract: An apparatus with time controlled color change indication comprises an apparatus includes a disposable, limited or restricted use product and an oxygen sensing color changeable dye disposed on a portion of the apparatus, the dye being translucent or having a first color upon application and for a defined time thereafter and the dye changing color after exposure to oxygen for the defined time. For example, a packaging for containing a product for human consumption has a portion with a color changeable dye disposed thereon. The dye changes color after being exposed to oxygen for a controlled and predetermined period of time indicating that the product for human consumption should no longer be consume or has decreased in freshness, quality of taste or potency.
    Type: Application
    Filed: February 28, 2013
    Publication date: October 17, 2013
    Inventors: Gregory Lee Heacock, Louise Ellen Culham
  • DISPOSABLE OPHTHALMIC/MEDICAL APPARATUS WITH TIMED COLOR CHANGE INDICATION
    Publication number: 20130192513
    Abstract: A disposable ophthalmic or medical apparatus has a portion with a color changeable dye disposed thereon. The dye changes color after being exposed to oxygen for a controlled and predetermined period of time indicating that the apparatus should no longer be used.
    Type: Application
    Filed: March 12, 2013
    Publication date: August 1, 2013
    Inventors: Gregory Lee Heacock, Louise Ellen Culham
  • DISPOSABLE OPHTHALMIC/MEDICAL APPARATUS WITH TIMED COLOR CHANGE INDICATION
    Publication number: 20130088683
    Abstract: A disposable ophthalmic or medical apparatus has a portion with a color changeable dye disposed thereon. The dye changes color after being exposed to oxygen for a controlled and predetermined period of time indicating that the apparatus should no longer be used.
    Type: Application
    Filed: November 29, 2012
    Publication date: April 11, 2013
    Inventors: Gregory Lee Heacock, Louise Ellen Culham
  • Disposable ophthalmic/medical apparatus with timed color change indication
    Patent number: 8388131
    Abstract: A disposable ophthalmic or medical apparatus has a portion with a color changeable dye disposed thereon. The dye changes color after being exposed to oxygen for a controlled and predetermined period of time indicating that the apparatus should no longer be used.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: March 5, 2013
    Inventors: Gregory Lee Heacock, Louise Ellen Culham
  • DISPOSABLE OPHTHALMIC/MEDICAL APPARATUS WITH TIMED COLOR CHANGE INDICATION
    Publication number: 20090303440
    Abstract: A disposable ophthalmic or medical apparatus has a portion with a color changeable dye disposed thereon. The dye changes color after being exposed to oxygen for a controlled and predetermined period of time indicating that the apparatus should no longer be used.
    Type: Application
    Filed: July 16, 2009
    Publication date: December 10, 2009
    Inventors: Gregory Lee Heacock, Louise Ellen Culham
  • Disposable ophthalmic/medical apparatus with timed color change indication
    Publication number: 20080129960
    Abstract: A disposable ophthalmic or medical apparatus has a portion with a color changeable dye disposed thereon. The dye changes color after being exposed to oxygen for a controlled and predetermined period of time indicating that the apparatus should no longer be used.
    Type: Application
    Filed: November 30, 2006
    Publication date: June 5, 2008
    Inventors: Gregory Lee Heacock, Louise Ellen Culham