Patents Examined by Sisay Yakob
  • Air filter condition sensing
    Patent number: 11617980
    Abstract: An air filter includes filter media, a sensor, and circuitry coupled to the sensor, the circuitry configured to receive data from the sensor representative of the condition of the filter media and wirelessly transmit such data. The data may be received by a device with a display to use the information to present an indication of the filter media condition to a user.
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: April 4, 2023
    Assignee: 3M Innovative Properties Company
    Inventors: Jonathan B. Arthur, Karl W. Bloedorn, Jayant Chakravarty, Gene B. Portelli, Dennis M. Glass, Michael A. Meis, Lyle L. Luppes, Daniel W. Hennen, Douglas D. Fletcher, Eric O. Hemberg, Oscar M. Hemberg