Patents by Inventor Isaac V. Farr

Isaac V. Farr 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).

  • USE OF NOVEL DRAW SOLUTES AND COMBINATIONS THEREOF TO IMPROVE PERFORMANCE OF A FORWARD OSMOSIS SYSTEM AND PROCESS
    Publication number: 20130256228
    Abstract: This disclosure describes draw solution compositions for FO processes which increase the available membrane area for permeation and are also amenable to reconcentration with standard techniques, such as membrane filtration and evaporative technologies. The composition are comprised of a water soluble draw solute having surface active properties, i.e., a surfactant.
    Type: Application
    Filed: March 14, 2013
    Publication date: October 3, 2013
    Inventors: Upen J. Bharwada, Isaac V. Farr
  • METHOD TO IMPROVE FORWARD OSMOSIS MEMBRANE PERFORMANCE
    Publication number: 20130026091
    Abstract: Described herein are thin film composite (TFC) membranes, for use in forward osmosis (FO) and pressure reduced osmosis (PRO) processes. The membrane is comprised of two layers: a composite layer combining a backing layer and a porous, polymer-based support into a single layer, and a rejection layer disposed on top of the composite layer. The membrane of the invention exhibits high water flux values for FO processes, is durable, may be readily manufactured using typical membrane manufacturing processes, such as spiral winding and plate and frame processes, and has sufficient mechanical stability to handle the final membrane product.
    Type: Application
    Filed: July 26, 2012
    Publication date: January 31, 2013
    Applicant: HYDRATION SYSTEMS, LLC
    Inventors: Isaac V. Farr, Upen J. Bharwada, Tilak Gullinkala
  • Sensing of fluid ejected by drop-on-demand nozzles
    Patent number: 7648220
    Abstract: Various apparatus and methods relating to determining a quantity measurement of fluid ejected by drop-on-demand nozzles and modifying the ejection parameters based upon the quantity measurement.
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: January 19, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Isaac V. Farr, David R. Otis, Jr., Casey T. Miller, Christie Dudenhoefer, Kenneth J. Ward
  • SENSING OF FLUID EJECTED BY DROP-ON-DEMAND NOZZLES
    Publication number: 20080259107
    Abstract: Various apparatus and methods relating to determining a quantity measurement of fluid ejected by drop-on-demand nozzles and modifying the ejection parameters based upon the quantity measurement.
    Type: Application
    Filed: April 23, 2007
    Publication date: October 23, 2008
    Inventors: Isaac V. Farr, David R. Otis, Casey T. Miller, Christie Dudenhoefer, Kenneth J. Ward