Patents by Inventor David E. Crites

David E. Crites 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).

  • Active and passive monitoring system for installed photovoltaic strings, substrings, and modules
    Publication number: 20200162023
    Abstract: A photovoltaic (PV) monitoring system measures the health of PV installations by measuring, calculating, and reporting the passive (dark) and active (illuminated) electrical characteristics of the PV strings, substrings, and modules that comprise the installation.
    Type: Application
    Filed: January 25, 2020
    Publication date: May 21, 2020
    Inventor: David E. Crites
  • PV monitoring system with combiner switching and charge controller switching
    Publication number: 20120256584
    Abstract: A photovoltaic (PV) monitoring system uses combiner switches and charge controller switches to test the health of a PV installation. Combiner switches are used to direct test current through PV strings and substrings as health measurements are collected by a centralized sensor. Charge controller switches are used to supply test current at night.
    Type: Application
    Filed: April 5, 2012
    Publication date: October 11, 2012
    Inventor: David E. Crites
  • Dark IV monitoring system for photovoltaic installations
    Publication number: 20120049855
    Abstract: A photovoltaic (PV) monitoring system performs dark current and dark IV testing of PV installations; computes the passive electrical characteristics of the installed array; determines the performance status and likely cause of underperformance; and communicates the collected data.
    Type: Application
    Filed: August 24, 2010
    Publication date: March 1, 2012
    Inventor: David E. Crites
  • Active and passive monitoring system for installed photovoltaic strings, substrings, and modules
    Publication number: 20120049879
    Abstract: A photovoltaic (PV) monitoring system measures the health of PV installations by measuring, calculating, and reporting the passive (dark) and active (illuminated) electrical characteristics of the PV strings, substrings, and modules that comprise the installation.
    Type: Application
    Filed: January 29, 2011
    Publication date: March 1, 2012
    Inventor: David E. Crites