Patents by Inventor Robert L. Chapman

Robert L. Chapman 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: 11998340
    Abstract: The system and method provide for electrocardiogram analysis and optimization of patient-customized cardiopulmonary resuscitation and therapy delivery. An external medical device includes a housing and a processor within the housing. The processor can be configured to receive an input signal for a patient receiving chest compressions and to select at least one filter mechanism and to apply the filter mechanism to the signal to at least substantially remove chest compression artifacts from the signal. A real time dynamic analysis of a cardiac rhythm is applied to adjust and integrate CPR prompting of a medical device. Real-time cardiac rhythm quality is facilitated using a rhythm assessment meter.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: June 4, 2024
    Assignee: Physio-Control, Inc.
    Inventors: Joseph L. Sullivan, Ronald E. Stickney, Robert G. Walker, Daniel W. Piraino, Isabelle Banville, Fred W. Chapman
  • Patent number: 6021380
    Abstract: A method and apparatus for visually inspecting and sorting semiconductor wafers and the individual microcircuits or chips thereon. The preferred embodiment employs a scanner to obtain a virtual reality image of the wafer and all chips are identified and sorted by applying high-speed image processing routines. The resulting wafer map provides unique image controlled chip coordinates making the chips identifiable even after the chips are diced apart. The wafer may contain different kinds of chips in irregular patterns. A gross-defect, visual inspection sorts out defective chips based on image completeness maximizing the yield and throughput. All inspections and identifications are performed on the virtual wafer or chip images scanned into a computer memory with full physical wafer correlation but without having to manipulate the wafer. The inspection time is, therefore, largely free due to overlapping it by regular transport operations.
    Type: Grant
    Filed: July 2, 1997
    Date of Patent: February 1, 2000
    Assignee: Scanis, Inc.
    Inventors: T. Roland Fredriksen, Robert L. Chapman
  • Patent number: 4659462
    Abstract: A water treatment plant includes a granulated activated carbon bed contactor used in pretreating influent water, including wastewater, prior to any filtration of the water in downstream stages of the plant. The contactor is operable either primarily for adsorption purposes or in a dual role for both adsorption and clarification or flocculation purposes to improve performance of downstream filters. In one embodiment, the carbon bed is partially fluidized and expanded by water flowing upwardly through the bed. This fluidization allows the passage of solids the bed and minimizes the plugging of the bed. The flow rate of water through the bed is adjustable and controllable to establish the degree of solids capture by the bed. Upwash and backwash carbon bed cleaning mechanisms are provided. Furthermore, the contactor has a countercurrent spent carbon removal and fresh carbon introduction system for rejuvenating the bed.
    Type: Grant
    Filed: October 24, 1985
    Date of Patent: April 21, 1987
    Assignee: CH.sub.2 M Hill, Inc.
    Inventor: Robert L. Chapman
  • Patent number: 4231256
    Abstract: A method and apparatus for removing moisture from a sample stream of gas while preventing dilution of the concentration of components of successive increments of the sample stream of gas.
    Type: Grant
    Filed: February 5, 1979
    Date of Patent: November 4, 1980
    Assignee: Beckman Instruments, Inc.
    Inventors: Robert L. Chapman, John N. Harman, III