Patents by Inventor David R. Johnson

David R. 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).

  • Publication number: 20040224429
    Abstract: A method and apparatus for detection of a particular material, such as photo-resist material, on a sample surface. A narrow beam of light is projected onto the sample surface and the fluoresced and/or reflected light intensity at a particular wavelength band is measured by a light detector. The light intensity is converted to a numerical value and transmitted electronically to a logic circuit which determines the proper disposition of the sample. The logic circuit controls a sample-handling robotic device which sequentially transfers samples to and from a stage for testing and subsequent disposition. The method is particularly useful for detecting photo-resist material on the surface of a semiconductor wafer.
    Type: Application
    Filed: June 4, 2004
    Publication date: November 11, 2004
    Inventors: Mark Eyolfson, Elton J. Hochhalter, Joe Lee Phillips, David R. Johnson, Peter S. Frank
  • Patent number: 6789251
    Abstract: A tool management system and interface for a disparate set of data processing tools is disclosed. A main tool menu allows selected tools to be launched so that each tool populates a respective window. A tool is selected by choosing an associated window as the currently-active window. Next, a list of all data items that are available for processing by the tool set may be obtained. A data item that is to undergo processing may be selected. A user interface provides a list of all operations that may be used to process the selected data item, including those operations that are supported by the currently-selected tool, and those operations that are not supported by the selected tool. Following selection of the operation, processing of the selected data item is completed by automatically invoking the appropriate tool.
    Type: Grant
    Filed: July 28, 1999
    Date of Patent: September 7, 2004
    Assignee: Unisys Corporation
    Inventor: David R. Johnson
  • Patent number: 6785882
    Abstract: A process-driven object management system for managing data and code modules is disclosed. The object management system includes a repository that stores objects, wherein ones of the objects referred to as “Asset elements” each describe a respective code or data module. The object management system includes a set of scripted tools for performing renovation, transformation, and code development tasks on the code and data modules. According to one aspect of the invention, the tool invocation constructs are stored as objects in the repository, such that some of the same object management tools and automated repository interface functions used to manage the Asset element can also be used to manage and veiw the tool objects.
    Type: Grant
    Filed: May 24, 1999
    Date of Patent: August 31, 2004
    Assignee: Unisys Corporation
    Inventors: David A. Goiffon, Gerald E. Hartmann, David R. Johnson
  • Publication number: 20040159582
    Abstract: A process for producing a premium Fischer-Tropsch diesel fuel which comprises (a) hydroprocessing a waxy Fischer-Tropsch feed to remove the oxygenates that are present in the feed, whereby a first Fischer-Tropsch intermediate product is produced with reduced olefins and oxygenates relative to the Fischer-Tropsch feed; (b) separating the first Fischer-Tropsch intermediate product in a separation zone into a heavy Fischer-Tropsch fraction and a light Fischer-Tropsch fraction under controlled separation conditions; (c) hydroisomerizing the heavy Fischer-Tropsch fraction to improve the cold flow properties of the heavy Fischer-Tropsch fraction and recovering an isomerized heavy Fischer-Tropsch fraction; (d) mixing the isomerized heavy Fischer-Tropsch fraction with at least a portion of the light Fischer-Tropsch fraction of (b); and (e) recovering from the blend a Fischer-Tropsch derived diesel product meeting a target value for at least one pre-selected specification for diesel fuel.
    Type: Application
    Filed: February 18, 2003
    Publication date: August 19, 2004
    Inventors: Christopher A. Simmons, David R. Johnson, Jerome F. Mayer, John M. Rosenbaum
  • Publication number: 20040124121
    Abstract: A method for preparing low toxicity Fischer-Tropsch fuels suitable for use in a diesel engine and Fischer-Tropsch derived fuel compositions having low toxicity suitable for use in diesel engines characterized by a boiling range distribution wherein the 5 weight percent point is at a temperature of 570 degrees F. or less and the 95 weight percent point is at or above a temperature of 680 degrees F.; a kinematic viscosity at 40 degrees C. of less than 5.5 cSt; and a cloud point of less than −18 degrees C.
    Type: Application
    Filed: July 22, 2003
    Publication date: July 1, 2004
    Applicant: Chevron U.S.A. Inc.
    Inventors: Russell R. Krug, Stephen J. Miller, Russell D. White, David R. Johnson, Christopher A. Simmons, James Arthur Rutherford
  • Publication number: 20040068150
    Abstract: A process for upgrading a Fischer-Tropsch feedstock which comprises (a) recovering from a Fischer-Tropsch reactor a Fischer-Tropsch wax fraction and a Fischer-Tropsch condensate fraction, wherein the Fischer-Tropsch condensate fraction contains alcohols boiling below about 370° C.
    Type: Application
    Filed: October 7, 2003
    Publication date: April 8, 2004
    Applicant: Chevron U.S.A. Inc.
    Inventors: David R. Johnson, Christopher A. Simmons, Donald H. Mohr, Stephen J. Miller, Stephen K. Lee, William J. Schinski, Michael S. Driver, William J. Cannella
  • Patent number: 6704107
    Abstract: A method and apparatus for detection of a particular material, such as photoresist material, on a sample surface. A narrow beam of light is projected onto the sample surface and the fluoresced and/or reflected light intensity at a particular wavelength band is measured by a light detector. The light intensity is converted to a numerical value and transmitted electronically to a logic circuit which determines the proper disposition of the sample. The logic circuit controls a sample-handling robotic device which sequentially transfers samples to and from a stage for testing and subsequent disposition. The method is particularly useful for detecting photo-resist material on the surface of a semiconductor wafer.
    Type: Grant
    Filed: November 4, 1997
    Date of Patent: March 9, 2004
    Assignee: Micron Technology, Inc.
    Inventors: Mark Eyolfson, Elton J. Hochhalter, Joe Lee Phillips, David R. Johnson, Peter S. Frank
  • Patent number: 6702937
    Abstract: A process for producing low pour point diesel and lubricating base oil products by bulk dewaxing a C5 plus Fischer-Tropsch syncrude, hydrofinishing the dewaxed intermediate, and recovering 120 degrees C. plus products having improved properties.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: March 9, 2004
    Assignee: Chevron U.S.A. Inc.
    Inventors: David R. Johnson, Christopher A. Simmons, Donald H. Mohr, Stephen J. Miller, Stephen K. Lee
  • Patent number: 6703535
    Abstract: A process for upgrading a Fischer-Tropsch feedstock which comprises (a) recovering from a Fischer-Tropsch reactor a Fischer-Tropsch wax fraction and a Fischer-Tropsch condensate fraction, wherein the Fischer-Tropsch condensate fraction contains alcohols boiling below about 370° C.
    Type: Grant
    Filed: April 18, 2002
    Date of Patent: March 9, 2004
    Assignee: Chevron U.S.A. Inc.
    Inventors: David R. Johnson, Christopher A. Simmons, Donald H. Mohr, Stephen J. Miller, Stephen K. Lee, William L. Schinski, Michael S. Driver, William J. Cannella
  • Patent number: 6700027
    Abstract: A process for increasing the yield of C10 plus hydrocarbon products from a Fischer-Tropsch plant which comprises (a) recovering a Fischer-Tropsch condensate fraction boiling below about 700 degrees F. from the Fischer-Tropsch plant, wherein said fraction contains at least 10 weight percent and preferably more olefins; (b) contacting the olefins in the Fischer-Tropsch condensate fraction under oligomerization conditions, at a reaction temperature between about 650 degrees F. and 800 degrees F. with an oligomerization catalyst comprising active chromium on an inert support; and (c) recovering a C10 plus hydrocarbon product.
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: March 2, 2004
    Assignee: Chevron U.S.A. Inc.
    Inventors: David R. Johnson, Christopher A. Simmons
  • Publication number: 20040029984
    Abstract: A process for increasing the yield of C10 plus hydrocarbon products from a Fischer-Tropsch plant which comprises (a) recovering a Fischer-Tropsch condensate fraction boiling below about 700 degrees F. from the Fischer-Tropsch plant, wherein said fraction contains at least 10 weight percent and preferably more olefins; (b) contacting the olefins in the Fischer-Tropsch condensate fraction under oligomerization conditions, at a reaction temperature between about 650 degrees F. and 800 degrees F. with an oligomerization catalyst comprising active chromium on an inert support; and (c) recovering a C10 plus hydrocarbon product.
    Type: Application
    Filed: August 7, 2002
    Publication date: February 12, 2004
    Inventors: David R. Johnson, Christopher A. Simmons
  • Patent number: 6688434
    Abstract: A conveyor and lubricating apparatus includes a conveyor and a dispensing device. The conveyor includes a conveyor surface and is provided for transporting items on the conveyor surface. Exemplary items that can be transported include plastic bottles, glass bottles, cans, and cartons. The dispensing device provides a spray pattern of a lubricant composition onto the conveyor surface. The dispensing device includes a nozzle that generates the spray pattern, a lubricant dispensing line that supplies the lubricant composition to the nozzle, a nozzle valve that opens and closes in response to the pressure conditions within the lubricant dispensing line to control flow of the lubricant composition to the nozzle, and a spray valve constructed to move between a first position and a second position, wherein the first position causes pressurization of the lubricant dispensing line and the second position provides depressurization of the lubricant dispensing line.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: February 10, 2004
    Assignee: Ecolab Inc.
    Inventors: David R. Johnson, Joseph Dirkson, Michael Knox
  • Publication number: 20030199719
    Abstract: A process for upgrading a Fischer-Tropsch feedstock which comprises (a) recovering from a Fischer-Tropsch reactor a Fischer-Tropsch wax fraction and a Fischer-Tropsch condensate fraction, wherein the Fischer-Tropsch condensate fraction contains alcohols boiling below about 370° C.
    Type: Application
    Filed: April 18, 2002
    Publication date: October 23, 2003
    Inventors: David R. Johnson, Christopher A. Simmons, Donald H. Mohr, Stephen J. Miller, Stephen K. Lee, William L. Schinski, Michael S. Driver, William J. Cannella
  • Patent number: 6624659
    Abstract: In one embodiment of the invention, an update circuit having a bus driver to drive a bus dynamically receives an update compensation code. The bus driver receives data at a data clock signal. The update compensation code controls impedance matching at the bus driver according to the data. A code generator generates the update compensation code at a base clock signal. The base clock signal is synchronized with the data clock signal. The base clock signal has an update interval and a quiet interval. A distribution ring interface distributes the update compensation code to the update circuit synchronously with the base clock signal.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: September 23, 2003
    Assignee: Intel Corporation
    Inventors: Isaac P. Abraham, David R. Johnson, Jed Griffin, David Peart
  • Publication number: 20030159889
    Abstract: A conveyor and lubricating apparatus includes a conveyor and a dispensing device. The conveyor includes a conveyor surface and is provided for transporting items on the conveyor surface. Exemplary items that can be transported include plastic bottles, glass bottles, cans, and cartons. The dispensing device provides a spray pattern of a lubricant composition onto the conveyor surface. The dispensing device includes a nozzle that generates the spray pattern, a lubricant dispensing line that supplies the lubricant composition to the nozzle, a nozzle valve that opens and closes in response to the pressure conditions within the lubricant dispensing line to control flow of the lubricant composition to the nozzle, and a spray valve constructed to move between a first position and a second position, wherein the first position causes pressurization of the lubricant dispensing line and the second position provides depressurization of the lubricant dispensing line.
    Type: Application
    Filed: February 22, 2002
    Publication date: August 28, 2003
    Inventors: David R. Johnson, Joseph Dirkeon, Michael Knox
  • Publication number: 20030150776
    Abstract: A process for increasing the yield of C10 plus hydrocarbon products from a Fischer-Tropsch plant which comprises the steps of (a) separating a Fischer-Tropsch product into a wax fraction and a condensate fraction; (b) dewaxing the wax fraction to produce a high boiling intermediate; (c) hydrofinishing the high boiling intermediate; (d) dehydrating the alcohols in the condensate fraction to convert them into olefins; (e) oligomerizing the olefins to form higher molecular weight hydrocarbons; (f) hydrofinishing the oligomerization mixture; and (g) and recovering a C10 plus hydrocarbon product from the hydrofinishing zone.
    Type: Application
    Filed: February 8, 2002
    Publication date: August 14, 2003
    Inventors: David R. Johnson, Christopher A. Simmons, Donald H. Mohr, Stephen J. Miller, Stephen K. Lee, William L. Schinski, Michael S. Driver
  • Publication number: 20030150777
    Abstract: A process for producing low pour point diesel and lubricating base oil products by bulk dewaxing a C5 plus Fischer-Tropsch syncrude, hydrofinishing the dewaxed intermediate, and recovering 120 degrees C. plus products having improved properties.
    Type: Application
    Filed: February 8, 2002
    Publication date: August 14, 2003
    Inventors: David R. Johnson, Christopher A. Simmons, Donald H. Mohr, Stephen J. Miller, Stephen K. Lee
  • Patent number: 6605206
    Abstract: A process for increasing the yield of C10 plus hydrocarbon products from a Fischer-Tropsch plant which comprises the steps of (a) separating a Fischer-Tropsch product into a wax fraction and a condensate fraction; (b) dewaxing the wax fraction to produce a high boiling intermediate; (c) hydrofinishing the high boiling intermediate; (d) dehydrating the alcohols in the condensate fraction to convert them into olefins; (e) oligomerizing the olefins to form higher molecular weight hydrocarbons; (f) hydrofinishing the oligomerization mixture; and (g) and recovering a C10 plus hydrocarbon product from the hydrofinishing zone.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: August 12, 2003
    Assignee: Chevron U.S.A. Inc.
    Inventors: David R. Johnson, Christopher A. Simmons, Donald H. Mohr, Stephen J. Miller, Stephen K. Lee, William L. Schinski, Michael S. Driver
  • Patent number: 6509960
    Abstract: A method and apparatus for endpoint detection for the stripping of a particular material, such as photo-resist material, from a substrate surface. A beam of light is projected onto the substrate surface and the fluoresced and/or reflected light intensity at a particular wavelength band is measured by a light detector. The light intensity is converted to a numerical value and transmitted electronically to a control mechanism which determines the proper disposition of the substrate. The control mechanism controls the cessation of the stripping process and may control a substrate-handling device which sequentially transfers substrates to and from a stripping chamber.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: January 21, 2003
    Assignee: Micron Technology, Inc.
    Inventors: David R. Johnson, Joe Lee Phillip, Todd C. Nielsen, Robert J. Hatfield
  • Patent number: 6497329
    Abstract: A display for merchandising products is disclosed. The display includes a base panel, two side panels coupled to the base panel, and a top panel coupled to the two side panels. A plurality of display panels are disposed between the two side panels. The display panels are configured to receive products. The display panels have surface treatments. At least two display panels have different surface treatments and the different surface treatments are configured to be associated with different product lines.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: December 24, 2002
    Assignee: Newell Operating Company
    Inventors: David R. Johnson, David A. Allen