Patents by Inventor David H. Friedman

David H. Friedman 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).

  • Publication number: 20180028214
    Abstract: A scalpel handle having knurling on the round shaft in close proximity to the surgical blade for improved precision, improved control, improved safety and reduced hand fatigue. The blade is secured by tension within the collet and is adjustable in length to provide a wide range of exposed positions for use. Embedded flat ruler markings enable accurate measurement of lesions or other tissue areas within the surgical field.
    Type: Application
    Filed: July 29, 2016
    Publication date: February 1, 2018
    Inventors: David H. Friedman, Steve Bond
  • Patent number: 9880228
    Abstract: A method of measuring integrity of a pulse-width modulated power converter may include the steps of monitoring data associated with an input and an output of the power converter. Then correlating the data to identify degradation in performance of the power converter. A system for measuring integrity of a pulse-width modulated power converter. Current sensors may sense input and output currents of the power converter. A programmable controller may be loaded with an integrity measuring algorithm that may analyze data from the current sensors. An impending failure of the power converter may be indicated as a result of the analysis of the data.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: January 30, 2018
    Assignee: InfiniRel Corporation
    Inventors: Norbert H. Wank, David H. Friedman
  • Publication number: 20140250692
    Abstract: An improved apparatus for use with nails or claws comprising an adjustable pressure activated clipper, which effectively closes upon successful capture and engagement of a nail or claw due to pressure realized on the surface of the clipper's articulating trigger by the nail or claw. In operation, as pressure is applied to the internal surface portion of the trigger by the user, the trigger automatically articulates and releases the refracted blade to cut the nail or claw at the desired length.
    Type: Application
    Filed: March 10, 2013
    Publication date: September 11, 2014
    Inventors: David H. Friedman, Steven Montgomery, Witold Siekaj
  • Publication number: 20130282313
    Abstract: A method of measuring integrity of a pulse-width modulated power converter may include the steps of monitoring data associated with an input and an output of the power converter. Then correlating the data to identify degradation in performance of the power converter. A system for measuring integrity of a pulse-width modulated power converter. Current sensors may sense input and output currents of the power converter. A programmable controller may be loaded with an integrity measuring algorithm that may analyze data from the current sensors. An impending failure of the power converter may be indicated as a result of the analysis of the data.
    Type: Application
    Filed: December 12, 2011
    Publication date: October 24, 2013
    Applicant: infiniRel Corporation
    Inventors: Norbert H. Wank, David H. Friedman