Patents by Inventor Walter Stewart

Walter Stewart 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: 8100067
    Abstract: The invention pertains to apparatus and methods for injecting viscous fertilizer, such as dewatered biosolids, below the surface of the soil. The invention also pertains to apparatus and methods for creating a continuous flow of viscous material and for dividing a flow of viscous material.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: January 24, 2012
    Assignee: American Water Works Company, Inc.
    Inventors: Phil Sidhwa, Dan Goldhawk, Walter Stewart Grose, Gordon Raymond Grose
  • Publication number: 20100313799
    Abstract: The invention pertains to apparatus and methods for injecting viscous fertilizer, such as dewatered biosolids, below the surface of the soil. The invention also pertains to apparatus and methods for creating a continuous flow of viscous material and for dividing a flow of viscous material.
    Type: Application
    Filed: August 3, 2010
    Publication date: December 16, 2010
    Applicant: American Water Works Company, Inc.
    Inventors: Phil Sidhwa, Dan Goldhawk, Walter Stewart Grose, Gordon Raymond Grose
  • Publication number: 20100313273
    Abstract: Use of a database/website or similar system, to store identification or other sensitive numbers, together with email addresses or other contact data in a linked association, for remote access by an organization to initiate usage notification to the true owner of the number collected, and to check a Fraud Alert status or similar setting for the number, and to compare the email address or other contact data obtained from a customer, not to include a PIN, to data stored in the database with the number collected, all of which, depending on the data components entered, will achieve deterrence of identity theft, rapid notification of number usage, rapid communication of a fraud alert or similar status, success or failure in obtaining or establishing an acceptable level of certainty that the customer is the true owner of the number, and a locking/unlocking capability for the number owners within the system domain.
    Type: Application
    Filed: October 4, 2009
    Publication date: December 9, 2010
    Inventor: Walter Stewart Freas
  • Patent number: 7775168
    Abstract: The invention pertains to apparatus and methods for injecting viscous fertilizer, such as dewatered biosolids, below the surface of the soil. The invention also pertains to apparatus and methods for creating a continuous flow of viscous material and for dividing a flow of viscous material.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: August 17, 2010
    Assignee: American Water Works Company, Inc.
    Inventors: Phil Sidhwa, Dan Goldhawk, Walter Stewart Grose, Gordon Raymond Grose
  • Publication number: 20060088889
    Abstract: The present invention provides peptides libraries which are useful for rapid identification of biologically active compounds. The invention further provides peptides which include cell-growth affecting peptides and peptides which enhance or inhibit production of cellular proteins. Many of the peptides of the invention may be produced in large quantity by recombinant techniques and formulated in culture medium to produce the desired effect on cultured cells and tissues. Certain of the libraries of the invention and the peptides identified in them are particularly useful in concatemer-based recombinant expression methods.
    Type: Application
    Filed: December 9, 2005
    Publication date: April 27, 2006
    Applicant: Becton, Dickinson and Company
    Inventors: Perry Haaland, Douglas Sherman, Robert Campbell, Walter Stewart, Sheila Lloyd, Bruce Erickson, Ann Erickson
  • Publication number: 20050186634
    Abstract: The present invention provides peptides libraries which are useful for rapid identification of biologically active compounds. The invention further provides peptides which include cell-growth affecting peptides and peptides which enhance or inhibit production of cellular proteins. Many of the peptides of the invention may be produced in large quantity by recombinant techniques and formulated in culture medium to produce the desired effect on cultured cells and tissues. Certain of the libraries of the invention and the peptides identified in them are particularly useful in concatemer-based recombinant expression methods.
    Type: Application
    Filed: May 7, 2004
    Publication date: August 25, 2005
    Inventors: Perry Haaland, Douglas Sherman, Robert Campbell, Walter Stewart, Sheila Lloyd, Bruce Erickson, Ann Erickson
  • Patent number: 6852966
    Abstract: The method and apparatus for compensating a photo-detector allows both regulation and monitoring of the photo-detector to be performed with a common digital controller. The controller accepts input of monitored operational parameters including received signal strength and temperature. The controller provides as an output a bias control signal which regulates a positive the positive or negative side bias voltage power supply for the photo-detector. The controller maintains the bias voltage to the photo-detector at levels which optimize the gain and signal-to-noise ratios for the photo-detector thereby facilitating the decoding of the received signal over a broad range of signal strengths and temperatures. The controller includes a corresponding digital signal strength and temperature compensators the outputs of which summed with a summer to provide the bias control signal.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: February 8, 2005
    Assignee: Finisar Corporation
    Inventors: Darin James Douma, James Walter Stewart, Rudy Hofmeister, Anthony W. Ho, Lucy G. Hosking
  • Patent number: 5978972
    Abstract: A system designed to measure and record in real time data relating to translational and angular acceleration of an individual's head during normal sporting activity. One embodiment of the device includes at least three orthogonal accelerometers mounted within a sports helmet together with means for recording, in real-time, the data output from the accelerometers. The data is either recorded on a memory card or other mass memory means installed in the helmet, or is transmitted to a nearby receiver for reception and storage on a computer's hard drive or other conventional mass storage device. The device provides real-time storage of translational and angular acceleration data over a length of time such that cumulative exposure effects and thus limits can be established for the individual's further or future participation in the sport. The data also allows detection of the precise motions of the head which precede the occurrence of a severe head injury.
    Type: Grant
    Filed: June 11, 1997
    Date of Patent: November 9, 1999
    Assignee: Johns Hopkins University
    Inventors: Walter Stewart, Nicholas Jones, Wolfger Schneider