Patents by Inventor Harpreet S. Dhaliwal

Harpreet S. Dhaliwal 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: 20170228709
    Abstract: A system and method for locating nearby vehicle service providers is disclosed. The method includes obtaining location information from a vehicle operator's mobile device that is used in vehicle breakdown situation to make a service request. The location information is used to determine a list of nearby service providers that are capable of assisting. Preferably, pricing information is provided so that the vehicle operator can select and pay the service provider from the mobile device in order to quickly return the vehicle to operational service.
    Type: Application
    Filed: February 5, 2016
    Publication date: August 10, 2017
    Inventor: Harpreet S. Dhaliwal
  • Patent number: 6013183
    Abstract: A process for liquefying microorganisms present in biosolids, such as waste activated sludge, generated by municipal or industrial wastewater treatment plants is disclosed. The process includes the step of passing a slurry of the sludge at a high pressure through a nozzle having a restricted flow area to cause liquefication of the microorganisms as they are discharged from the nozzle. The pressure drop across the nozzle preferably exceeds 5,000 psi. At least part of the liquefied microorganisms may be recirculated to the treatment facility to feed nutrients to the wastewater treatment process. Optionally, the liquefied microorganisms may be anaerobically converted to methane and carbon dioxide. For optimum results, the sludge is subjected to pH adjustment and/or maceration prior to being pumped through the high pressure nozzle.
    Type: Grant
    Filed: August 5, 1998
    Date of Patent: January 11, 2000
    Assignee: Paradigm Environmental Technologies Inc.
    Inventors: Robert J. Stephenson, Harpreet S. Dhaliwal