Patents by Inventor John J. Simpson

John J. Simpson 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).

  • Patent number: 11980386
    Abstract: Versatile tissue collection devices that can provide reduced crossing profiles, fluid pressure release, and/or easy cleaning or removal. In particular, devices having tissue collection devices with multiple configurations to facilitate navigation through narrow vessel cross-sections while also providing adequate tissue storage capacity. Additionally, the devices may include detachable components that allow easy removal, cleaning, and replacement during a procedure. Furthermore, venting elements and sections may be included to relieve fluid buildup in storage reservoirs.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: May 14, 2024
    Assignee: Avinger, Inc.
    Inventors: Priyanshu Gupta, Christina Van, Nicholas J. Spinelli, John B. Simpson
  • Publication number: 20240102909
    Abstract: A method includes projecting light to obtain a reference measurement using a first photoresistor; collecting dust on a platform during a collection time interval; and projecting light across the platform to obtain a dust measurement using the first photoresistor or a second photoresistor.
    Type: Application
    Filed: September 28, 2023
    Publication date: March 28, 2024
    Inventors: Robert W. Baxter, Derrick J. Hinkle, Ralph E. Bard, John N. Simpson
  • Patent number: 11940438
    Abstract: A method for monitoring fuel quality of a power system used in transport is provided. The method includes a controller of the power system determining that the prime mover is actively running. The method also includes the controller monitoring an output of a water-in-fuel (WIF) sensor configured to measure an amount of water accumulated in a water collection reservoir of a fuel/water separator that separates water from fuel passing there through. Also, the method includes the controller determining an amount of fuel passing through the fuel/water separator. Further, the method includes the controller calculating a fuel quality score of the fuel based on the output of the WIF sensor and the amount of fuel having passed through the fuel/water separator. The method further includes the controller triggering different alerts based on the calculated fuel quality score.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: March 26, 2024
    Assignee: THERMO KING LLC
    Inventors: John G. Simpson, Kyle J. Gleason, Randall S. Burnham, Arthur H. Ambaruch
  • Publication number: 20040232345
    Abstract: A device for the continuous monitoring in situ of radon concentration in ambient air, and the simultaneous measurement of working level (WL) values of the radon daughters in ambient air. The device comprises an electrical field formed of two hemispherical walls facing each other with a gap therebetween allowing ambient air to diffuse through. The area between the walls is considered a “sensitive volume”. A positively-charged photodiode is disposed in communication with the sensitive volume for the detection of alpha emissions from radon or radon progeny electrically isolated within said electrical field.
    Type: Application
    Filed: March 31, 2003
    Publication date: November 25, 2004
    Inventors: Pillalamarri Jagam, John J. Simpson