Patents by Inventor John H. Lewis
John H. Lewis 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).
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Patent number: 11992358Abstract: A multimodality phantom apparatus includes a housing and a system of materials disposed within the housing. The system of material includes a first amount of abase material, a second amount of glass microspheres, a third amount of CaCO3, a fourth amount of gadolinium contrast and a fifth amount of agarose. The housing may include a plurality of compartments and at least one slot. The system of materials may be disposed within at least one compartment. The slot may be used to receive a dosimeter.Type: GrantFiled: February 13, 2020Date of Patent: May 28, 2024Assignee: The Regents of the University of CaliforniaInventors: Kamal Singhrao, John H. Lewis
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Publication number: 20220139262Abstract: A multimodality phantom apparatus includes a housing and a system of materials disposed within the housing. The system of material includes a first amount of abase material, a second amount of glass microspheres, a third amount of CaCO3, a fourth amount of gadolinium contrast and a fifth amount of agarose. The housing may include a plurality of compartments and at least one slot. The system of materials may be disposed within at least one compartment. The slot may be used to receive a dosimeter.Type: ApplicationFiled: February 13, 2020Publication date: May 5, 2022Inventors: Kamal Singhrao, John H. Lewis
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Patent number: 7975922Abstract: The present invention relates to management of information relating to medical fluids, containers therefor, and medical fluid administration devices for administering such medical fluids to patients. Data tags (e.g., RFID tags) are generally associated with containers of the invention and may be electromagnetically read from and/or written to using an electromagnetic device, for example, that may be associated with a medical fluid administration device of the invention.Type: GrantFiled: December 29, 2006Date of Patent: July 12, 2011Assignee: Mallinckrodt Inc.Inventors: Frank M. Fago, David W. Wilson, Chad M. Gibson, William E. Bausmith, Vernon D. Ortenzi, Elaine E. Haynes, Elaine F. Borgemenke, John H. Lewis, Gary S. Wagner
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Patent number: 7898416Abstract: The present invention relates to management of information relating to medical fluids, containers therefore, and medical fluid administration devices for administering such medical fluids to patients. Data tags (e.g., RFID tags) are generally associated with containers of the invention and may be electromagnetically read from and/or written to using an electromagnetic device, for example, that may be associated with a medical fluid administration device of the invention.Type: GrantFiled: December 29, 2006Date of Patent: March 1, 2011Assignee: Mallinckrodt Inc.Inventors: Frank M. Fago, David W. Wilson, Chad M. Gibson, William E. Bausmith, Vernon D. Ortenzi, Elaine E. Haynes, Elaine F. Borgemenke, John H. Lewis, Gary S. Wagner
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Patent number: 7698180Abstract: The present invention relates to management of information relating to medical fluids, containers therefor, and medical fluid administration devices for administering such medical fluids to patients. Data tags (e.g., RFID tags) are generally associated with containers of the invention and may be electromagnetically read from and/or written to using an electromagnetic device, for example, that may be associated with a medical fluid administration device of the invention.Type: GrantFiled: December 29, 2006Date of Patent: April 13, 2010Assignee: Mallinckrodt Inc.Inventors: Frank M. Fago, David W. Wilson, Chad M. Gibson, William E. Bausmith, Vernon D. Ortenzi, Elaine E. Haynes, Elaine F. Borgemenke, John H. Lewis, Gary S. Wagner
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Patent number: 7588189Abstract: The present invention relates to management of information relating to medical fluids, containers therefor, and medical fluid administration devices for administering such medical fluids to patients. Data tags (e.g., RFID tags) are generally associated with containers of the invention and may be electromagnetically read from and/or written to using an electromagnetic device, for example, that may be associated with a medical fluid administration device of the invention.Type: GrantFiled: December 29, 2006Date of Patent: September 15, 2009Assignee: Mallinckrodt Inc.Inventors: Frank M. Fago, David W. Wilson, Chad M. Gibson, William E. Bausmith, Vernon D. Ortenzi, Elaine E. Haynes, Elaine F. Borgemenke, John H. Lewis, Gary S. Wagner
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Publication number: 20080200747Abstract: One aspect of the present invention is directed to a system for power filling a syringe with a radiopharmaceutical from a vial while attempting to provide low exposure to radiation, and thereafter, power injecting the radiopharmaceutical. A radiation-shielded container of the system generally holds the vial. A filling and injecting device of the system generally includes a mounting structure adapted to support the syringe with a needle of the syringe located in the vial. An electromechanical drive of the system may be commanded by a control to pull a syringe plunger through a controlled motion, thereby filling the syringe.Type: ApplicationFiled: May 16, 2006Publication date: August 21, 2008Inventors: Gary S. Wagner, Frank M. Fago, Keith M. Grispo, Chad M. Gibson, John H. Lewis, William E. Bausmith, Elaine E. Haynes, David W. Wilson, Vernon D. Ortenzi, Elaine Borgemenke
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Patent number: 6454324Abstract: An electronic door control and light for permitting push-button and/or remote opening of a door and lighting of an area proximate the doorway. The electronic door control and light includes a control panel assembly designed for coupling to a building, a door latch assembly having a door jarring assembly and a latch mechanism, and at least one light operationally coupled to the control panel assembly. In an embodiment, a remote unit has a transmitter and the control panel assembly has a receiver for selectively activating the door latch assembly and light. In an embodiment, the control panel assembly has individual switches for facilitating selective activation of the door latch assembly and the light.Type: GrantFiled: August 25, 2000Date of Patent: September 24, 2002Inventors: John H. Lewis, John S. Lewis
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Publication number: 20010036620Abstract: A system for making a lesson authored by a teacher accessible to a class of one or more students and for making homework authored by a student belonging to the class accessible to the teacher. The system includes a first client, a second client, and a server computer, all of which are connected to a computer network. The server computer maintains a database including information about the teacher, the student, the class and the lesson. The server computer provides a script to the first client computer and to the second client computer for executing a notation computer program. The notation computer program is utilized to author the lesson or the homework. The lesson or the homework is transferred from the first or the second client computer to the server computer for making the lesson or the homework accessible to the students of the class or the teacher.Type: ApplicationFiled: March 7, 2001Publication date: November 1, 2001Applicant: Lyrrus Inc. d/b/a GVOXInventors: Scott C. Peer, John S. Alexander, Gerald A. Beirne, Kevin E. Corcoran, Sue A. Groveman, Daniel M. Kessler, John H. Lewis
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Patent number: 5267713Abstract: An article of furniture comprises a plurality of brackets which attach to an underside of a platform and which provide for attachment of upper ends of a plurality of legs. Each bracket has a shorter support and a longer support. Each support has an end and an aperture therethrough. Each bracket has a slot having one end in the aperture of the shorter support and another end in the aperture of the longer support. A threaded fastener extends through the slot of each of the brackets and is slidably movable between the end of the slot in the shorter support and the end of the slot in the longer support. The fastener engages with the upper end of one of the legs to selectively secure the leg to one of the supports.Type: GrantFiled: July 20, 1992Date of Patent: December 7, 1993Inventor: John H. Lewis
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Patent number: 4147932Abstract: A viewing system for improving an image, and particularly designed for use with infrared and low light level inputs. A viewing system having first and second electrodes mounted in spaced relation with a gap therebetween, an electric power source for producing an electric field in the gap attracting electrons toward one electrode and positive charge toward the other, a photoresponsive layer on the gap face of the first electrode with radiation directed onto the layer through the first electrode producing an electrostatic charge image at the gap, and a plurality of electrophoretic particles dispersed in a dielectric liquid in the gap, with the particles being selectively deposited at the second electrode as a function of the electrostatic charge image. In the preferred embodiment, the deposited particles are viewed with a dark field illumination system whereby light is scattered to the viewing position by the deposited particles. Cascaded systems and systems incorporating image intensifiers are also disclosed.Type: GrantFiled: September 6, 1977Date of Patent: April 3, 1979Assignee: Xonics, Inc.Inventor: John H. Lewis
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Patent number: 4104520Abstract: An electrostatic imaging chamber providing a real time visual image. An imaging chamber with electrophoretic particles in the electrode gap, with the particles being selectively moved to a transparent electrode as a result of the electrostatic charge image formed by incoming radiation. An imaging chamber which can be cyclicly operated at a relatively high repetition rate, typically 10 to 20 images per second, thereby providing real time viewing of the object. A conductivity control layer at the gap for discharging the electrostatic charge image each cycle after viewing.Type: GrantFiled: May 24, 1977Date of Patent: August 1, 1978Assignee: Xonics, Inc.Inventors: John H. Lewis, Kathrine J. Lewis, Fremont Reizman, Murray S. Welkowsky
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Patent number: 4079255Abstract: An electronradiography imaging chamber providing a real time visual image. An electronradiography imaging chamber with a solid X-ray absorber at one electrode and with electrophoretic particles in the gap between the electrodes, with the particles being selectively moved to a transparent electrode as a result of the electrostatic charge image formed by absorption of incoming X-ray radiation in the solid absorber. An imaging chamber which can be cyclically operated at a relatively high repetition rate, typically 10 to 20 images per second, thereby providing real time viewing of the objects. SUBACKGROUND OF THE INVENTIONThis invention relates to electronradiography and in particular, to X-ray systems providing for real time imaging. The present invention is an improvement on that disclosed in copending application entitled X-RAY SYSTEM WITH ELECTROPHORETIC IMAGING, Ser. No. 571,220, filed Apr. 24, 1975, now U.S. Pat. No. 3,965,352.Type: GrantFiled: September 10, 1976Date of Patent: March 14, 1978Assignee: Xonics, Inc.Inventors: Keith A. Brueckner, John H. Lewis
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Patent number: 4072289Abstract: Analog method and apparatus for producing an axial tomographic image of an object, typically the human body, using a detector for receiving radiation along a plurality of sets of paths, with the sets of paths overlapping each other, and providing a plurality of sets of detector output signals. Prior art devices exist for producing the detector output signals, which signals are then manipulated in a digital computer to produce the desired image. In one embodiment of the present invention, the detector output signals are summed in a storage tube and the stored signals are read in an inversely proportional relation, providing another signal for storage in another storage tube which is then read with a Laplacian relation to give a video signal for display and/or recording. Optical and electrostatic storage systems are also disclosed.Type: GrantFiled: September 10, 1976Date of Patent: February 7, 1978Assignee: Xonics, Inc.Inventors: Keith A. Brueckner, John H. Lewis
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Patent number: 4070577Abstract: Apparatus and method for improving contrast in the visual image formed by toner deposited on an electrostatic image such as is formed in xerography and ionography. Hard copy and real time electrostatic imaging systems utilizing a fluorescent toner in the form of particles having a fluorescent core and an electrophoretic coating. A viewing system with a radiation source of a wavelength for exciting the fluorescent toner particles and preferably a filter for suppressing the excitation radiation in the fluorescent image.Type: GrantFiled: September 10, 1976Date of Patent: January 24, 1978Assignee: Xonics, Inc.Inventors: John H. Lewis, Robert A. Young
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Patent number: 4053768Abstract: Apparatus and method for improving contrast in the visual image formed by toner deposited on an electrostatic image such as is formed in electronradiography. Electrophoretic toner particles and a dye are dispersed in a liquid, with the particles being deposited onto a substrate which carries the electrostatic image, with the selectively attracted particles forming the visual image. The visual image is viewed by reflected or scattered light with the light having a color emission spectrum substantially corresponding to the absorption spectrum of the dye for absorbing and thereby eliminating unwanted light.Type: GrantFiled: September 10, 1976Date of Patent: October 11, 1977Assignee: Xonics, Inc.Inventors: John H. Lewis, Michael D. McDiarmid
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Patent number: 3965352Abstract: An electronradiography imaging chamber providing a real time visual image. An electronradiography imaging chamber with electrophoretic particles in the electrode gap, with the particles being selectively moved to a transparent electrode as a result of the electrostatic charge image formed by absorbtion of incoming X-ray radiation in the gap. A dark field illumination viewing configuration with the deposited particles providing light scattering giving a visual image with low radiation dosage. An imaging chamber which can be cyclically operated at a relatively high repetition rate, typically 10 to 20 images per second, thereby providing real time viewing of the object.Type: GrantFiled: April 24, 1975Date of Patent: June 22, 1976Assignee: Xonics, Inc.Inventors: Frank V. Allan, John B. Fenn, Jr., John H. Lewis
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Patent number: 3949222Abstract: Apparatus and method for improving an electron radiograph by reducing the charge density in the background area of the electrostatic image and thereby reducing the amount of toner attracted to such areas during developing. The latent electrostatic image is generated by exposure to a radiation source in an imaging chamber and the higher charge densities are then neutralized by exposing the electrostatic image to an ion discharge, with a bias potential for limiting the neutralizing action, after which the electrostatic image is developed into a visual image.Type: GrantFiled: November 1, 1974Date of Patent: April 6, 1976Assignee: Xonics, Inc.Inventor: John H. Lewis
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Patent number: D323260Type: GrantFiled: July 13, 1989Date of Patent: January 21, 1992Inventor: John H. Lewis