Patents by Inventor Scott Lenhardt

Scott Lenhardt 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).

  • Carbon dioxide recycle for immersed membranes
    Publication number: 20040124132
    Abstract: Carbon dioxide, liberated by introducing fouling inhibiting bubbles into a tank containing an immersed membrane module, is captured and returned to the tank by way of the bubbles to minimize increases in pH in the tank water caused by carbon dioxide stripping. Minimizing the pH increase reduces the amount of acid required to produce a desired pH in the tank water or, with scaling feed water, reduces the rate of membrane fouling.
    Type: Application
    Filed: December 17, 2003
    Publication date: July 1, 2004
    Inventors: Manwinder Singh, Scott Lenhardt
  • Carbon dioxide recycle for immersed membrane
    Publication number: 20020170863
    Abstract: Carbon dioxide, liberated by introducing fouling inhibiting bubbles into a tank containing an immersed membrane module, is captured and returned to the tank by way of the bubbles to minimize increases in pH in the tank water caused by carbon dioxide stripping. Minimizing the pH increase reduces the amount of acid required to produce a desired pH in the tank water or, with scaling feed water, reduces the rate of membrane fouling.
    Type: Application
    Filed: March 8, 2002
    Publication date: November 21, 2002
    Inventors: Manwinder Singh, Scott Lenhardt