Patents by Inventor John H. Stewart

John H. 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: 8771518
    Abstract: Fluid filtration systems and methods thereof to filter fluid in a first directional mode and a second directional mode are disclosed. Fluid filtration systems and methods thereof include a first directional mode, a second directional mode, and a filter unit. The filter unit includes a filter housing unit and a filter chamber disposed in the filter unit.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: July 8, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Wayne J Schmidt, John A Thompson, John H Stewart
  • Patent number: 8501233
    Abstract: The present invention relates to compositions and methods for treating cancer and, in particular, to composition and methods comprising nanostructures. In one embodiment, the present invention provides a composition comprising a mixture, the mixture comprising at least one nanoparticle and at least one chemotherapeutic.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: August 6, 2013
    Assignees: Wake Forest University, Wake Forest University Health Sciences
    Inventors: David Loren Carroll, John H. Stewart, IV, Nicole H. Levi
  • Publication number: 20130026101
    Abstract: Fluid filtration systems and methods thereof to filter fluid in a first directional mode and a second directional mode are disclosed. Fluid filtration systems and methods thereof include a first directional mode, a second directional mode, and a filter unit. The filter unit includes a filter housing unit and a filter chamber disposed in the filter unit.
    Type: Application
    Filed: July 25, 2011
    Publication date: January 31, 2013
    Inventors: Wayne J. Schmidt, John A. Thompson, John H. Stewart
  • Publication number: 20100209479
    Abstract: The present invention relates to compositions and methods for treating cancer and, in particular, to composition and methods comprising nanostructures. In one embodiment, the present invention provides a composition comprising a mixture, the mixture comprising at least one nanoparticle and at least one chemotherapeutic.
    Type: Application
    Filed: March 13, 2008
    Publication date: August 19, 2010
    Inventors: David Loren Carroll, John H. Stewart, IV, Nicole H. Levi
  • Publication number: 20100027054
    Abstract: A computer network may include at least one network printer, a plurality of network computers for generating print jobs for the at least one network printer, and a network print server coupled to the plurality of network computers for queuing the print jobs for the at least one network printer. Moreover, the computer network may further include at least one printer control device coupled between the network print server and the at least one network printer. The at least one printer control device may be configured to provide remote access to the at least one network printer via the World Wide Web (Web) using a Web communications protocol, communicate the print jobs from the network print server to the at least one network printer, and isolate the network print server from remote access communications formatted in the Web communications protocol.
    Type: Application
    Filed: May 8, 2009
    Publication date: February 4, 2010
    Applicant: Pharos Systems International, Inc.
    Inventors: Paul James Reddy, Julian Sharpe, Jacky Sun, Peter James Riddell, Kevin Pickhardt, John H. Stewart
  • Patent number: 6750285
    Abstract: One embodiment is directed to an adhesive composition that is clear, flexible, and is devoid of non-polar additives and comprises molecules that are polar and particles having a lipophilic surface. In one embodiment, the particles range from 7 nm to 3 &mgr;m in diameter and the adhesive layer is between 0.1 and 5 &mgr;m thick. The particles may be alkyl-converted fumed silica, porous polymer-coated surfaces, or styrene/divinyl benzene polymer. The particles absorb non-polar oils or lubricants that prevent adhesion between printable media and the adhesive layer of the film. The present disclosure is a general solution for oily or lubricated substrates or printed areas. Oily materials are used in inks, dry powder toners, liquid EP toners, and in printers and copiers. The present teachings allow the adhesive to bond well to print media surfaces.
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: June 15, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: John H. Stewart
  • Patent number: 4494198
    Abstract: A gun fire control system comprises a computer (15) having a first memory (15A) preprogrammed with true range to standard ballistic range conversion data and is operable on receipt of a true range value from a rangefinder (16) to output the corresponding standard ballistic range value. A second memory (15B) of the computer (15) is preprogrammed with correction coefficients (A,B,M,N) arranged in sets pertaining to different types of ammunition one set being operable according to the position of a selector switch (13) and being delivered to a calculator (15C) together with an operator correction value (COR) (from buttons 14A, 14B) which is a judgment on the magnitude and direction by which a projectile misses a target sighted according to the range value presented at display (11). Calculator (15C) operates according to a predetermined algorithm to establish parameter correction changes (.DELTA.AD, .DELTA.CT) and delivers these changes to calculator/store (15D) which updates and stores parameter values (AD, CT).
    Type: Grant
    Filed: February 26, 1982
    Date of Patent: January 15, 1985
    Assignee: Barr & Stroud Limited
    Inventors: Gordon R. Smith, John H. Stewart, Ralph H. Bagnall-Wild
  • Patent number: 4418361
    Abstract: In a system (10) comprising a trunnion-mounted aiming device (11) and a trunnion-mounted sighting device (14) interconnected by a tracking link (13) and having an associated visual display (16) providing an image of the field of view containing the sight line (15) of the sighting device (14) there is provided a means of accurately positioning an aiming mark designating the pointing direction (12) of the aimed device (11) in the visual display (16). This positioning arrangement is provided by an elevation sensor (18) associated with the aimed device (11), an elevation sensor (19) associated with the sighting device (14), an electronic indicator mark generator (28) and an electronic processor (20), the latter being operable according to the measurements from the sensors (18,19) to deflect the mark generated by the generator (28) so as to compensate in the elevation axis for backlash and inertia of the link (13) and in the traverse axis for lack of parallelism of the trunnion mountings of the devices (11,14).
    Type: Grant
    Filed: April 30, 1982
    Date of Patent: November 29, 1983
    Assignee: Barr & Stroud Limited
    Inventors: Ralph H. Bagnall-Wild, Gordon R. Smith, John H. Stewart, David S. Ritchie
  • Patent number: 4215553
    Abstract: An efficient split cycle solar energy conversion system utilizes sensible heat storage to isolate a solar receiver loop from a Brayton cycle engine loop. In this system a sensible heat storage unit is first charged by the solar receiver, is then switched to the inlet to the Brayton cycle turbine where it is discharged, and finally may be utilized as a high temperature, high effectiveness recuperator to recapture waste heat from the Brayton cycle turbine. With high effectiveness sensible heat storage recuperation, the Brayton cycle engine runs at extremely high efficiency. Moreover, since these storage devices can be run efficiently at low gas velocity, and since recuperated Brayton cycle engines become very efficient at extremely low pressure ratios, an overall thermal/electric conversion efficiency in excess of 60% can be obtained.
    Type: Grant
    Filed: June 26, 1978
    Date of Patent: August 5, 1980
    Assignee: Sanders Associates, Inc.
    Inventors: Armand R. Poirier, Theodore J. Nussdorfer, John H. Stewart
  • Patent number: 4183119
    Abstract: A harnessing device formed by a locking head and an attached serrated strap with gripper rails. The head contains a guide channel for receiving the strap after encirclement of the items to be harnessed, and an internal locking tang. The serrated strap has side rails which are proportioned to grip the encircled items. The desired gripping action is facilitated by the inclusion of serrations on the rails.
    Type: Grant
    Filed: May 15, 1978
    Date of Patent: January 15, 1980
    Assignee: Dennison Manufacturing Company
    Inventors: John H. Stewart, Leo P. Dekkers
  • Patent number: 4171868
    Abstract: A communications cable comprises a single optical fibre enclosed in a sheathing assembly which protects the fibre against shock and bending. The sheathing assembly comprises end members and a protective sheath surrounded preferably by a coiled spring.
    Type: Grant
    Filed: July 21, 1977
    Date of Patent: October 23, 1979
    Assignee: The Post Office
    Inventors: Paul C. Hensel, John H. Stewart