Patents by Inventor Mark D. Alpert

Mark D. Alpert 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).

  • Window blind pull-string alarm apparatus, systems, and methods of making and using the same
    Patent number: 9613513
    Abstract: The present invention relates to an alarm for detecting and alerting a person of an event where a device is pulled on for an extended period of time. Specifically, the present invention relates to an alarm implemented on a pull-string. Even more specifically, the present invention relates to an apparatus, system, and method of using the same that alerts a person when something becomes tangled or is otherwise caught up in the pull-string of window blinds, shades, or other light blocking devices.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: April 4, 2017
    Inventor: Mark D. Alpert
  • Window Blind Pull-String Alarm Apparatus, Systems, and Methods of Making and Using the Same
    Publication number: 20170018161
    Abstract: The present invention relates to an alarm for detecting and alerting a person of an event where a device is pulled on for an extended period of time. Specifically, the present invention relates to an alarm implemented on a pull-string. Even more specifically, the present invention relates to an apparatus, system, and method of using the same that alerts a person when something becomes tangled or is otherwise caught up in the pull-string of window blinds, shades, or other light blocking devices.
    Type: Application
    Filed: January 16, 2015
    Publication date: January 19, 2017
    Inventor: Mark D. Alpert