Patents by Inventor Stephen C. Johnson

Stephen C. Johnson 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: 6844346
    Abstract: The subject invention discloses materials and methods for the design, synthesis, and biochemical evaluation of chromogenic substrate compounds for sialidases of bacterial, viral, protozoa, and vertebrate (including humans) origin. These compounds are based upon N-acetylneuraminic acid glycosides. In particular, this invention provides a novel class of these compounds as chromogenic substrates of these sialidases which yield chromogenic products after reactions catalyzed by sialidase take place. Also provided are methods of making these substrate compounds, methods of diagnosis and prognosis of sialidase related diseases using these substrate compounds.
    Type: Grant
    Filed: December 24, 2002
    Date of Patent: January 18, 2005
    Assignees: IBBEX, Inc., Univ. of Alabama at Birmingham
    Inventors: Stephen C. Johnson, Ashraf Saeed, Ming Luo
  • Publication number: 20040251775
    Abstract: An apparatus to control displacement of a body spaced-apart from a surface includes a flexure system having a first flexure member defining a first axis of rotation and a second flexure member defining a second axis of rotation. A body is coupled to the flexure system to move about a plurality of axes. An actuation system is coupled to the flexure system to selectively constrain movement of the body along a subset of the plurality of axes.
    Type: Application
    Filed: March 23, 2004
    Publication date: December 16, 2004
    Applicant: Board of Regents, The University of Texas System
    Inventors: Byung-Jin Choi, Sidlgata V. Sreenivasan, Stephen C. Johnson
  • Patent number: 6812332
    Abstract: The subject invention discloses materials and methods for the design, synthesis, and biochemical evaluation of chromogenic substrate compounds for sialidases of bacterial, viral, protozoa, and vertebrate (including humans) origin. In particular, this invention provides a novel class of effective compounds as chromogenic substrates of these sialidases which yield chromogenic products after reactions catalyzed by sialidase take place. Also provided are methods of making these substrate compounds, methods of diagnosis and prognosis of sialidase related diseases using these substrate compounds.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: November 2, 2004
    Assignees: IBBEX, Inc., UAB Research Foundation
    Inventors: Stephen C. Johnson, Ashraf Saeed, Ming Luo
  • Publication number: 20040180393
    Abstract: The current invention relates to the design, synthesis, and biochemical evaluation of chromogenic substrate compounds for sialidases of bacterial, viral, protozoa, and vertebrate (including human) origin. In particular, this invention provides a novel class of effective compounds as chromogenic substrates of these sialidases which yield chromogenic products after reactions catalyzed by sialidase take place. Also provided are methods of making these substrate compounds, methods of diagnosis and prognosis of sialidase related diseases using these substrate compounds.
    Type: Application
    Filed: October 6, 2003
    Publication date: September 16, 2004
    Inventors: Stephen C. Johnson, Ming Luo, Shijia Yan
  • Publication number: 20040168588
    Abstract: The present invention includes a method of orientating a template with respect to a substrate spaced from the template, the method including, rotating the template about a first and a second axis to orientate the template with respect to the substrate and maintain the orientation in response to a force being exerted upon the template.
    Type: Application
    Filed: February 27, 2004
    Publication date: September 2, 2004
    Applicant: Board of Regents, The University of Texas System
    Inventors: Byung Jin Choi, Sidlgata V. Sreenivasan, Stephen C. Johnson
  • Publication number: 20040169441
    Abstract: An apparatus to orientate a body with respect to a surface spaced-apart from the body. The apparatus comprises a flexure system having a first flexure member defining a first axis of rotation and a second flexure member defining a second axis of rotation. A body is coupled to the flexure system, and an actuation system is coupled to the flexure system. The body is coupled to the flexure system to rotate about the first and the second axes in response to movement caused by the actuation system. The movement of the body about the first axis being decoupled from movement of the body about the second axis.
    Type: Application
    Filed: February 10, 2004
    Publication date: September 2, 2004
    Applicant: The Board of Regents, The University of Texas System
    Inventors: Byung Jin Choi, Sidlgata V. Sreenivasan, Stephen C. Johnson
  • Publication number: 20040149687
    Abstract: Processes and associated devices for high precision positioning of a template an substrate during imprint lithography includes a calibration system with a course calibration stage and a fine orientation stage capable of maintaining a uniform gap between the template and substrate. The fine orientation stage includes a pair of flexure members having flexure joints for motion about a pivot point intersected by first and second orientation axes. Actuators lengthen or shorten to expand or contract the flexure members. Separation of the template is achieved using a peel-and-pull method that avoids destruction of imprinted features from the substrate.
    Type: Application
    Filed: July 10, 2003
    Publication date: August 5, 2004
    Applicant: University of Texas System, Board of Regents, UT System
    Inventors: Byung Jin Choi, Sidlgata V. Sreenivasan, Stephen C. Johnson
  • Patent number: 6754892
    Abstract: A process for packing an instruction word including providing a word value representing an instruction word into which an operation is to be fit be equal to some initial value having a plurality of portions representing constraints, operating on the initial value of the value word with operation class values having a plurality of portions representing constraints of a new operation as the new operation is attempted to be fit into the instruction to affect the processor word value in a manner to indicate when the limit of any constraint for the instruction is reached, and determining a violation of any constraint to determine that the new operation does not fit the format.
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: June 22, 2004
    Assignee: Transmeta Corporation
    Inventor: Stephen C. Johnson
  • Publication number: 20040104641
    Abstract: Processes and associated devices for high precision positioning of a template an substrate during imprint lithography includes a calibration system with a course calibration stage and a fine orientation stage capable of maintaining a uniform gap between the template and substrate. The fine orientation stage includes a pair of flexure members having flexure joints for motion about a pivot point intersected by first and second orientation axes. Actuators lengthen or shorten to expand or contract the flexure members. Separation of the template is achieved using a peel-and-pull method that avoids destruction of imprinted features from the substrate.
    Type: Application
    Filed: July 10, 2003
    Publication date: June 3, 2004
    Applicants: University of Texas System, Board of Regents, UT System
    Inventors: Byung Jin Choi, Sidlgata V. Sreenivasan, Stephen C. Johnson
  • Publication number: 20030235787
    Abstract: The present invention provides a composition and a method for forming a pattern on a substrate with the composition by forming a cross-linked polymer from the composition upon exposing the same to radiation. The viscosity and wetting properties of the composition are selected to facilitate formation of a layer from a plurality of spaced-apart beads of the material disposed on the substrate. To that end, in one embodiment of the present invention the composition includes a mono-functional acrylate component, a poly-functional molecule component, and an initiator component responsive to the radiation to initiate a free radical reaction to cause the mono-functional acrylate component and the poly-functional molecule component to polymerize and crosslink.
    Type: Application
    Filed: June 24, 2002
    Publication date: December 25, 2003
    Inventors: Michael P.C. Watts, Carlton Grant Willson, Todd Bailey, Stephen C. Johnson, Eui-Kyoon Kim, Nicholas A. Stacey
  • Patent number: 6667161
    Abstract: The current invention relates to the design, synthesis, and biochemical evaluation of chromogenic substrate compounds for sialidases of bacterial, viral, protozoa, and vertebrate (including human) origin. In particular, this invention provides a novel class of effective compounds as chromogenic substrates of these sialidases which yield chromogenic products after reactions catalyzed by sialidase take place. Also provided are methods of making these substrate compounds, methods of diagnosis and prognosis of sialidase related diseases using these substrate compounds.
    Type: Grant
    Filed: October 5, 1999
    Date of Patent: December 23, 2003
    Assignees: Ibbex, Inc., UAB Research Foundation
    Inventors: Stephen C. Johnson, Ming Lou, Shijia Yan
  • Publication number: 20030181691
    Abstract: The subject invention discloses materials and methods for the design, synthesis, and biochemical evaluation of chromogenic substrate compounds for sialidases of bacterial, viral, protozoa, and vertebrate (including humans) origin. In particular, this invention provides a novel class of effective compounds as chromogenic substrates of these sialidases which yield chromogenic products after reactions catalyzed by sialidase take place. Also provided are methods of making these substrate compounds, methods of diagnosis and prognosis of sialidase related diseases using these substrate compounds.
    Type: Application
    Filed: December 24, 2002
    Publication date: September 25, 2003
    Inventors: Stephen C. Johnson, Ashraf Saeed, Ming Luo
  • Patent number: 6620117
    Abstract: An apparatus for mechanically stimulating a human user includes in one embodiment a base frame, a rigid plate connected to the base frame and having an area sufficient to support a standing human, a vibrational device attached to the bottom of the horizontal plate whereby the plate is caused to oscillate in both vertical and horizontal directions at a desired frequency with an amplitude of less than 2.0 mm, and a frequency control device whereby the frequency of the vertical and horizontal oscillations may be selectively and independently adjusted. Vertically extending handrails are preferably connected to the device such that vibrations may be transmitted to the arms and upper spinal region of a user's body when grasped.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: September 16, 2003
    Assignee: Connextech, L.L.C.
    Inventors: Stephen C. Johnson, Richard M. Greenwald, Thomas D. Rosenberg
  • Publication number: 20030162240
    Abstract: The subject invention discloses materials and methods for the design, synthesis, and biochemical evaluation of chromogenic substrate compounds for sialidases of bacterial, viral, protozoa, and vertebrate (including humans) origin. In particular, this invention provides a novel class of effective compounds as chromogenic substrates of these sialidases which yield chromogenic products after reactions catalyzed by sialidase take place. Also provided are methods of making these substrate compounds, methods of diagnosis and prognosis of sialidase related diseases using these substrate compounds.
    Type: Application
    Filed: January 21, 2003
    Publication date: August 28, 2003
    Inventors: Stephen C. Johnson, Ashraf Saeed, Ming Luo
  • Patent number: 6562850
    Abstract: The invention relates to a new class of compounds herein identified generally as “sultams”, which may be represented by the following formula V, in FIG. 1, in which numbering of the atoms is started with the sulfur atom of the isothiazole. Two of the rings (rings A and C) are aromatic, and the third is a heterocyclic ring (ring B), a cyclic sulfonamide. Of particular importance are the enantiomerically pure sultams since they are especially potent HIV-1 inhibitors.
    Type: Grant
    Filed: July 15, 1999
    Date of Patent: May 13, 2003
    Assignee: The University of Tennessee Research Corporation
    Inventors: David C. Baker, Anand Mayasundari, Jianmin Mao, Stephen C. Johnson, Shijia Yan
  • Patent number: 6512100
    Abstract: The subject invention discloses materials and methods for the design, synthesis, and biochemical evaluation of chromogenic substrate compounds for sialidases of bacterial, viral, protozoa, and vertebrate (including humans) origin. In particular, this invention provides a novel class of effective compounds as chromogenic substrates of these sialidases which yield chromogenic products after reactions catalyzed by sialidase take place. Also provided are methods of making these substrate compounds, methods of diagnosis and prognosis of sialidase related diseases using these substrate compounds.
    Type: Grant
    Filed: August 30, 2000
    Date of Patent: January 28, 2003
    Assignees: Ibbex, Inc., UAB Research Foundation
    Inventors: Stephen C Johnson, Ashraf Saeed, Ming Luo
  • Patent number: 6144984
    Abstract: A process for creating, maintaining, and executing network applications. A user specifies a network application as an interconnection of tasks, each task being addressed to run on one or more computers. Process steps install and execute the application with accommodation for dynamically changing addresses. During execution, process steps compile or interpret source code on remote computers as needed. Process steps permit application changes during execution subject to limitations and fail-safes that prevent non-programmers from creating invalid changes.
    Type: Grant
    Filed: April 25, 1997
    Date of Patent: November 7, 2000
    Inventors: Erik P. DeBenedictis, Stephen C. Johnson
  • Patent number: 5625823
    Abstract: A process for creating, maintaining, and executing network applications. A user specifies a network application as an interconnection of tasks, each task being addressed to run on one or more computers. Process steps install and execute the application with accommodation for dynamically changing addresses. During execution, process steps compile or interpret source code on remote computers as needed. Process steps permit application changes during execution subject to limitations and fail-safes that prevent non-programmers from creating invalid changes.
    Type: Grant
    Filed: October 18, 1996
    Date of Patent: April 29, 1997
    Inventors: Erik P. Debenedictis, Stephen C. Johnson
  • Patent number: 5305587
    Abstract: A shredding disk for a lawn mower which attaches to the motor shaft and between the mower blade and the lawn mower deck. The shredding disk includes a disk member and a plurality of knives in a serrated fashion located inboard of the circumferential edge of the disk member. A feed tube is positioned on the top of the lawn mower deck and can be closed with a cap during regular mowing. The shredding disk is for shredding branches or twigs, such as those members which fall off trees.
    Type: Grant
    Filed: February 25, 1993
    Date of Patent: April 26, 1994
    Inventor: Stephen C. Johnson
  • Patent number: 5273207
    Abstract: Delivered mail indicator system for indicating when a mailbox door has been opened for the deposit of mail by the mailperson. A fluorescent or reflective lip is engaged in between the two latches of a mailbox, and when the mailbox door is opened, the lip springs upwardly and outwardly. When the mailbox door is closed, the lip or flag of the indicator engages against an upper latch handle, indicating that mail has been delivered. The delivered mail indicator is made of a suitable polymer with a flag appropriately colored for ease of visualization for indicating that mail has been delivered.
    Type: Grant
    Filed: December 8, 1992
    Date of Patent: December 28, 1993
    Inventor: Stephen C. Johnson