Patents by Inventor Jianjun Wang

Jianjun Wang 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: 20040016283
    Abstract: A method and apparatus for calibrating a sensor for determination of the concentration of a sterilant, e. g., hydrogen peroxide vapor, in a sterilization system.
    Type: Application
    Filed: April 28, 2003
    Publication date: January 29, 2004
    Inventors: Jianjun Wang, David A. Mondiek, Dennis V. Boruszewski, David P. Guntrip
  • Patent number: 6683975
    Abstract: A method and apparatus for determining the dispersibility grade of particulate material by means of an image processing technique that employs machine vision. In one aspect, this invention provides a method for grading the dispersibility of particulate material, the method comprising the steps of: (a) obtaining an image, in digitized form, of a sample comprising reconstituted particulate material; (b) performing a series of image processing steps to determine the presence and magnitude of blobs; (c) performing a blob analysis to obtain data relating to the distribution of the particulate material in the sample; (d) comparing the result of the blob analysis with data in a database; and (e) determining the grade of said particulate material by means of the comparison. The sample of particulate material, which is typically in the form of a powder, is reconstituted preferably by means of agitating a container filled with the sample.
    Type: Grant
    Filed: June 18, 2001
    Date of Patent: January 27, 2004
    Assignee: Abbott Laboratories
    Inventors: Jianjun Wang, Randall Edwin Terflinger, Wilson G. Zeitler, David A. Mondiek
  • Patent number: 6612149
    Abstract: A method and apparatus for calibrating a sensor for determination of the concentration of a sterilant, e.g., hydrogen peroxide vapor, in a sterilization system. This invention provides a method for calibrating a sensor that is used for measuring the quantity of a sterilant in a system for delivering the sterilant, the method comprising the steps of: (a) generating reference calibration data, the reference calibration data showing a mathematical relationship between a measurable parameter, e.g. voltage, and a quantity of the sterilant, e.g.
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: September 2, 2003
    Assignee: Abbott Laboratories
    Inventors: Jianjun Wang, David A. Mondiek, Dennis V. Boruszewski, David P. Guntrip
  • Publication number: 20030115933
    Abstract: A system for monitoring concentrations of sterilant, such as hydrogen peroxide vapor, within a sterilization apparatus, includes a self-contained, sterilant monitoring assembly that is freely positionable within the sterilization apparatus. The assembly includes a gas-detecting sensor and associated temperature sensor mounted on a portable structure, as well as a suitable data collection circuit for receiving output signals from the sensors. The assembly also includes signals connectors, such as a physical data port or a remote transmitter, or both. Signals can be transmitted concurrently with data collection, or an electronic memory may be provided for subsequent transfer of the collected data. Collected data is transferred to a remote communication unit positioned exteriorly of the sterilization apparatus.
    Type: Application
    Filed: February 4, 2003
    Publication date: June 26, 2003
    Inventors: Jianjun Wang, David A. Mondiek
  • Patent number: 6581435
    Abstract: A method and apparatus for calibrating a sensor for determination of the concentration of a sterilant, e.g., hydrogen peroxide vapor, in a sterilization system. This invention provides a method for calibrating a sensor that is used for measuring the quantity of a sterilant in a system for delivering the sterilant, the method comprising the steps of: (a) generating reference calibration data, the reference calibration data showing a mathematical relationship between a measurable parameter, e.g. voltage, and a quantity of the sterilant, e.g.
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: June 24, 2003
    Assignee: Abbott Laboratories
    Inventors: Jianjun Wang, David A. Mondiek, Dennis V. Boruszewski, David P. Guntrip
  • Publication number: 20030084703
    Abstract: A method and apparatus for calibrating a sensor for determination of the concentration of a sterilant, e. g., hydrogen peroxide vapor, in a sterilization system.
    Type: Application
    Filed: July 16, 2002
    Publication date: May 8, 2003
    Inventors: Jianjun Wang, David A. Mondiek, Dennis V. Boruszewski, David P. Guntrip
  • Patent number: 6537491
    Abstract: Sterilization apparatus includes a monitoring system capable of continuously monitoring levels of a sterilant, such as hydrogen peroxide vapor. The monitoring system includes a sensor chamber joined in fluid communication with a sterilant supply conduit of the sterilization apparatus. A gas-detecting semiconductor sensing element, and associated temperature sensor, are provided within the sensor chamber to provide output signals corresponding to detected levels of sterilant. The sensor chamber isolates parametric influence, such as relative humidity, temperature and flow rate, to provide more accurate concentration level readings. A data collection circuit is operatively coupled to the sensors to provide an output corresponding to detected levels of sterilant within the apparatus.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: March 25, 2003
    Assignee: Abbott Laboratories
    Inventors: Jianjun Wang, David A. Mondiek, Patrick D. Simon
  • Patent number: 6532794
    Abstract: A system for monitoring concentrations of sterilant, such as hydrogen peroxide vapor, within a sterilization apparatus, includes a self-contained, sterilant monitoring assembly that is freely positionable within the sterilization apparatus. The assembly includes a gas-detecting sensor and associated temperature sensor mounted on a portable structure, as well as a suitable data collection circuit for receiving output signals from the sensors. The assembly also includes signals connectors, such as a physical data port or a remote transmitter, or both. Signals can be transmitted concurrently with data collection, or an electronic memory may be provided for subsequent transfer of the collected data. Collected data is transferred to a remote communication unit positioned exteriorly of the sterilization apparatus.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: March 18, 2003
    Assignee: Abbott Laboratories
    Inventors: Jianjun Wang, David A. Mondiek
  • Patent number: 6517775
    Abstract: Sterilant monitoring assembly includes an external housing defining an inlet and an outlet, and an internal flow path extending therethrough. An internal housing is located within the external housing and substantially surrounded by the internal flow path. The internal housing defines an interior sensor chamber therein, and includes a valve arrangement to join the interior sensor chamber selectively in fluid communication with the internal flow path. Preferably, the valve arrangement of the internal housing is defined by a base portion and a cover portion moveable relative to each other between an open position and a closed position. In one embodiment, the cover portion has an open end section configured for sealing engagement with an opposing surface of the base portion when moved axially to the closed position. In another preferred embodiment, the base portion and cover portion include mating peripheral walls.
    Type: Grant
    Filed: November 19, 1999
    Date of Patent: February 11, 2003
    Assignee: Abbott Laboratories
    Inventors: Jianjun Wang, David A. Mondiek
  • Publication number: 20030016857
    Abstract: A method and apparatus for determining the dispersibility grade of particulate material by means of an image processing technique that employs machine vision.
    Type: Application
    Filed: June 18, 2001
    Publication date: January 23, 2003
    Inventors: Jianjun Wang, Randall Edwin Terflinger, Wilson G. Zeitler, David A. Mondiek
  • Publication number: 20020152792
    Abstract: A method and apparatus for calibrating a sensor for determination of the concentration of a sterilant, e.g., hydrogen peroxide vapor, in a sterilization system.
    Type: Application
    Filed: February 15, 2001
    Publication date: October 24, 2002
    Inventors: Jianjun Wang, David A. Mondiek, Dennis V. Boruszewski, David P. Guntrip
  • Publication number: 20020060511
    Abstract: A glass-door icebox comprises a glass-door assembly having double layer (1, 2) of spaced glass and frame (5), the size of the outer layer (2) of the double spaced glass is larger than that of the inner layer (1), at its back side the outer glass (2) is fastened to the front of the frame (5) with the frame's front being flat-aligned, and the inner glass (1) is fitted in with its periphery embedded within an annular groove of the frame (5).
    Type: Application
    Filed: February 12, 2001
    Publication date: May 23, 2002
    Inventors: Jian Ma, Biao Li, Jianjun Wang, Qing Yao, Kegang Huang
  • Publication number: 20020033040
    Abstract: A system for monitoring concentrations of sterilant, such as hydrogen peroxide vapor, within a sterilization apparatus, includes a self-contained, sterilant monitoring assembly that is freely positionable within the sterilization apparatus. The assembly includes a gas-detecting sensor and associated temperature sensor mounted on a portable structure, as well as a suitable data collection circuit for receiving output signals from the sensors. The assembly also includes signals connectors, such as a physical data port or a remote transmitter, or both. Signals can be transmitted concurrently with data collection, or an electronic memory may be provided for subsequent transfer of the collected data. Collected data is transferred to a remote communication unit positioned exteriorly of the sterilization apparatus.
    Type: Application
    Filed: November 16, 2001
    Publication date: March 21, 2002
    Inventors: Jianjun Wang, David A. Mondiek
  • Patent number: 6318151
    Abstract: A system for monitoring concentrations of sterilant, such as hydrogen peroxide vapor, within a sterilization apparatus, includes a self-contained, sterilant monitoring assembly that is freely positionable within the sterilization apparatus. The assembly includes a gas-detecting sensor and associated temperature sensor mounted on a portable structure, as well as a suitable data collection circuit for receiving output signals from the sensors. The assembly also includes signals connectors, such as a physical data port or a remote transmitter, or both. Signals can be transmitted concurrently with data collection, or an electronic memory may be provided for subsequent transfer of the collected data. Collected data is transferred to a remote communication unit positioned exteriorly of the sterilization apparatus.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: November 20, 2001
    Assignee: Abbott Laboratories
    Inventors: Jianjun Wang, David A. Mondiek
  • Patent number: 6006590
    Abstract: A method and system for ultrasonically analyzing flowable products. The method includes the steps of providing a flowable product to be ultrasonically analyzed. In addition the method includes the steps of providing a means for generating and receiving ultrasonic waves, a processing unit, and a means for agitating the flowable product. A flowable product is agitated using the means for agitating. The means for generating and receiving ultrasonic waves is then placed in ultrasonic contact with the flowable product and ultrasonic waves are directed into the flowable product. Ultrasonic waves are received using the means for generating and receiving ultrasonic waves and the received waves are transmitted to the processing unit where they are processed by establishing respective vectors for a plurality of reflective contents of the flowable product and by comparing the respective vectors to a predetermined, acceptable statistical range of vectors.
    Type: Grant
    Filed: July 31, 1997
    Date of Patent: December 28, 1999
    Assignee: Abbott Laboratories
    Inventor: Jianjun Wang
  • Patent number: 5922945
    Abstract: An apparatus for analyzing a liquid product. The apparatus includes a conveyor assembly having a conveyor belt and an agitator. The conveyor belt is constructed to deliver a unit of liquid product from the agitator to an analysis position. The agitator is constructed to impart motion to a unit of liquid product. The apparatus further includes an ultrasound transmissive pad assembly having a pad defining a chamber therein. A liquid acoustical couplant is contained in the chamber. The ultrasound transmissive pad assembly further includes an ultrasonic transducer in ultrasonic contact with the liquid acoustical couplant. The pad is positioned to contact a unit of liquid product at the analysis position. The pad has an upper portion and a lower portion and is orientated such that the upper portion contacts a unit of liquid product delivered to the analysis position before the lower portion contacts the unit of liquid product delivered to the analysis position.
    Type: Grant
    Filed: April 16, 1997
    Date of Patent: July 13, 1999
    Assignee: Abbott Laboratories
    Inventors: Brian J. Allmaras, Elwood L. Stokesbury, Jianjun Wang
  • Patent number: 5770801
    Abstract: A pad for transmitting acoustical waves between an ultrasound probe and a target surface. The pad includes a first layer having a first porous portion which defines first layer pores therethrough. The first layer pores have a first layer pore dimension. The pad further includes a second layer having a first porous portion which defines second layer pores therethrough. The second layer pores have a second layer pore dimension. The second layer is attached to the first layer to define a space therebetween. The first porous portion of the first layer overlies the first porous portion of said second layer. An ultrasound couplant is disposed in the space defined between the first and second layers. The ultrasound couplant has a molecule size that is less than or substantially equal to the first layer pore dimension and less than or substantially equal to the second layer pore dimension.
    Type: Grant
    Filed: February 26, 1996
    Date of Patent: June 23, 1998
    Assignee: Abbott Laboratories
    Inventors: Jianjun Wang, Annette G. Bouska, Lonnie R. Drayer
  • Patent number: 5673533
    Abstract: The present invention provides an apparatus and method for testing seal strength and integrity of packages and for testing container and lid integrity, during an on-line production processing environment. Air pressure is introduced in a unique way to test the container and/or container seal in an additional step of an otherwise typical processing environment. A computer may be in communication with the testing sensors to control the processing in the event a failure is detected. The present invention provides a way to meet the continuously increasing line speed in form, fill and seal production processes with a unique ability of having complete package integrity testing for any odd shapes and package combinations.
    Type: Grant
    Filed: November 5, 1996
    Date of Patent: October 7, 1997
    Assignee: Abbott Laboratories
    Inventors: Jianjun Wang, Billy Dean Cornelius, Ralph Allen Gygax
  • Patent number: 5655539
    Abstract: A method for conducting an ultrasound procedure on an object having a target surface. The method includes the step of providing an ultrasound probe having an acoustical wave emitting end portion. A pad for transmitting acoustical waves between the ultrasound probe and a target surface of an object also is provided. The pad includes a first layer having a first porous portion which defines first layer pores therethrough. The first layer pores have a first layer pore dimension. The pad further includes a second layer having a first porous portion which defines second layer pores therethrough. The second layer pores have a second layer pore dimension. The second layer is attached to the first layer so as to define a space therebetween. The first porous portion of the first layer overlies the first porous portion of the layer. An ultrasound couplant is disposed in the space defined between the first layer and the second layer.
    Type: Grant
    Filed: February 26, 1996
    Date of Patent: August 12, 1997
    Assignee: Abbott Laboratories
    Inventors: Jianjun Wang, Annette G. Bouska, Lonnie R. Drayer
  • Patent number: 5577364
    Abstract: The present invention provides an apparatus and method for testing seal strength and integrity of packages and for testing container and lid integrity, during an on-line production processing environment. Air pressure is introduced in a unique way to test the container and/or container seal in an additional step of an otherwise typical processing environment. A computer may be in communication with the testing sensors to control the processing in the event a failure is detected. The present invention provides a way to meet the continuously increasing line speed in form, fill and seal production processes with a unique ability of having complete package integrity testing for any odd shapes and package combinations.
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: November 26, 1996
    Assignee: Abbott Laboratories
    Inventors: Jianjun Wang, Billy D. Cornelius, Ralph A. Gygax