Patents by Inventor Kenneth A. Johnson

Kenneth A. 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: 20250043313
    Abstract: Disclosed herein are methods and compositions relating to a mutated version of Cas9. This mutation or mutations can be in the RuvC domain of Cas9. The mutated Cas9 can have decreased cleavage of mismatched target compared to a wild type Cas9.
    Type: Application
    Filed: September 13, 2022
    Publication date: February 6, 2025
    Inventors: David W. TAYLOR, Kenneth A. JOHNSON, Jack P.K. BRAVO, Mu-Sen LIU, Tyler DANGERFIELD, Grace Nicole HIBSHMAN
  • Publication number: 20230407278
    Abstract: Disclosed herein are methods and compositions relating to a mutated version of Cas9. This mutation or mutations can be in the Rec3 clamp of Cas9. The mutated Cas9 can have advantages compared Cas9s which don't have mutations in the Rec3 clamp.
    Type: Application
    Filed: March 20, 2023
    Publication date: December 21, 2023
    Inventors: David Taylor, Kenneth A. Johnson, Jack P. K. Bravo, Tyler L. Dangerfield
  • Publication number: 20100304461
    Abstract: The present disclosure relates to nucleic acids comprising a sequence of SEQ ID NO: 1. The nucleic acid may be an isolated DNA and/or may be in the form of a plasmid or an expression vector. It may also be comprised in a microorganism. The nucleic acid may further comprise sequences that encode a protein. The self-replicating expression plasmid comprising a DNA sequence of the disclosure may be used to produce one or more protein. The production of one or more protein by a plasmid of the disclosure may be controlled by temperature and/or chemical induction. The disclosure also provides methods of obtaining high yields of proteins and methods for purifying such proteins, such as the LdK39 protein or a fragment thereof.
    Type: Application
    Filed: June 12, 2008
    Publication date: December 2, 2010
    Inventors: John W. Brandis, Kenneth A. Johnson
  • Patent number: 7817914
    Abstract: The present disclosure relates to an image capture device and a technique for capturing an image. The technique includes selecting at least one subject displayed on an image capture device as an image trigger condition and entering a threshold level corresponding to the at least one image trigger condition. The technique further provides monitoring a signal from at least one sensor detecting the at least one image trigger condition and obtaining at least one digital image upon detecting the sensed image trigger condition meeting the threshold level.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: October 19, 2010
    Assignee: Eastman Kodak Company
    Inventors: Cheryl J. Kuberka, David C. Barnum, Frances C. Williams, John N. Border, Kenneth A. Johnson
  • Patent number: 7676145
    Abstract: The present disclosure relates to an image capture device and a technique for capturing an image. The technique includes configuring an image capture device in a learning mode for sensing at least one variable in the device's surroundings and defining a normal state of the at least one variable. Further, the technique includes initiating image capture upon detecting a transition of the at least one variable from the normal state to a new condition, wherein the transition exceeds a predetermined threshold level, and redefining the normal state to the new condition.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: March 9, 2010
    Assignee: Eastman Kodak Company
    Inventors: Cheryl J. Kuberka, David C. Barnum, Frances C. Williams, John N. Border, Kenneth A. Johnson
  • Publication number: 20080298795
    Abstract: The present disclosure relates to an image capture device and a technique for capturing an image. The technique includes configuring an image capture device in a learning mode for sensing at least one variable in the device's surroundings and defining a normal state of the at least one variable. Further, the technique includes initiating image capture upon detecting a transition of the at least one variable from the normal state to a new condition, wherein the transition exceeds a predetermined threshold level, and redefining the normal state to the new condition.
    Type: Application
    Filed: May 30, 2007
    Publication date: December 4, 2008
    Inventors: Cheryl J. Kuberka, David C. Barnum, Frances C. Williams, John N. Border, Kenneth A. Johnson
  • Publication number: 20080298796
    Abstract: The present disclosure relates to an image capture device and a technique for capturing an image. The technique includes selecting at least one subject displayed on an image capture device as an image trigger condition and entering a threshold level corresponding to the at least one image trigger condition. The technique further provides monitoring a signal from at least one sensor detecting the at least one image trigger condition and obtaining at least one digital image upon detecting the sensed image trigger condition meeting the threshold level.
    Type: Application
    Filed: May 30, 2007
    Publication date: December 4, 2008
    Inventors: Cheryl J. Kuberka, David C. Barnum, Frances C. Williams, John N. Border, Kenneth A. Johnson
  • Patent number: 7007822
    Abstract: The present invention relates to chemical delivery systems and methods for delivery of liquid chemicals. In one embodiment, the present invention relates to systems having multi-reservoir load cell assemblies for delivering chemicals used in the semiconductor industry. In one embodiment, the present invention provides a multi-reservoir load cell assembly, including a controller, a buffer reservoir, a main reservoir, one or more load cells, coupled to the assembly and to the controller, operable to weigh the liquid in the reservoir(s), a plurality of supply lines, each supply line having a valve and connecting one of the supply containers to the main reservoir, and a gas and vacuum sources for withdrawing the liquid from the assembly when demanded by the controller and for refilling the assembly from the supply containers.
    Type: Grant
    Filed: May 12, 2003
    Date of Patent: March 7, 2006
    Assignee: The BOC Group, Inc.
    Inventors: Randy Forshey, Kenneth A. Johnson
  • Publication number: 20030192920
    Abstract: The present invention relates to chemical delivery systems and methods for delivery of liquid chemicals. In one embodiment, the present invention relates to systems having multi-reservoir load cell assemblies for delivering chemicals used in the semiconductor industry. In one embodiment, the present invention provides a multi-reservoir load cell assembly, including a controller, a buffer reservoir, a main reservoir, one or more load cells, coupled to the assembly and to the controller, operable to weigh the liquid in the reservoir(s), a plurality of supply lines, each supply line having a valve and connecting one of the supply containers to the main reservoir, and a gas and vacuum sources for withdrawing the liquid from the assembly when demanded by the controller and for refilling the assembly from the supply containers.
    Type: Application
    Filed: May 12, 2003
    Publication date: October 16, 2003
    Inventors: Randy Forshey, Kenneth A. Johnson
  • Publication number: 20030010792
    Abstract: The present invention relates to chemical delivery systems and methods for delivery of liquid chemicals. In one embodiment, the present invention relates to systems having multi-reservoir load cell assemblies for delivering chemicals used in the semiconductor industry. In one embodiment, the present invention provides a multi-reservoir load cell assembly, including a controller, a buffer reservoir, a main reservoir, one or more load cells, coupled to the assembly and to the controller, operable to weigh the liquid in the reservoir(s), a plurality of supply lines, each supply line having a valve and connecting one of the supply containers to the main reservoir, and a gas and vacuum sources for withdrawing the liquid from the assembly when demanded by the controller and for refilling the assembly from the supply containers.
    Type: Application
    Filed: May 6, 2002
    Publication date: January 16, 2003
    Inventors: Randy Forshey, Kenneth A. Johnson
  • Patent number: 5975379
    Abstract: A dispense head assembly includes a bung adapter, a body receiver, and a dispensing body. The bung adapter inserts into a drum. The body receiver selectively inserts into the bung adapter, and the dispensing body selectively inserts into the body receiver. A single, unobstructed, uniform-diameter flowpath routes fluid from the drum into a chamber within the body receiver. A movable piston within the chamber selectively blocks fluid flow between the fluid flowpath and a dispense opening on the dispensing body. The body receiver and the dispensing body are key matched, for safe and rapid coupling and decoupling.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: November 2, 1999
    Inventor: Kenneth A. Johnson
  • Patent number: 5926002
    Abstract: The application describes a control pendant for controlling a multi-segment patient table to assume a variety of different positions or configurations. The pendant has safety features including automatic shutoff of power to the keys under selected conditions and backlighting of the keys when power is being supplied (e.g., when keys are operational) to provide improved visibility in low-light environments. The control pendant further has an ergonomically effective shape and key board layout. An icon representing the table and its segments is located on the keyboard, and the keyswitches are arranged with respect to the icon to facilitate rapid and accurate visual identification of keys which operate particular table segments.
    Type: Grant
    Filed: February 21, 1995
    Date of Patent: July 20, 1999
    Assignee: Getinge/Castle, Inc.
    Inventors: Matthew R. Cavanaugh, Kenneth A. Johnson
  • Patent number: 5878924
    Abstract: A dispense head assembly includes a bung adapter, a body receiver, and a dispensing body. The bung adapter inserts into a drum. The body receiver selectively inserts into the bung adapter, and the dispensing body selectively inserts into the body receiver. A single, unobstructed, uniform-diameter flowpath routes fluid from the drum into a chamber within the body receiver. A movable piston within the chamber selectively blocks fluid flow between the fluid flowpath and a dispense opening on the dispensing body. The body receiver and the dispensing body are key matched, for safe and rapid coupling and decoupling.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: March 9, 1999
    Assignee: Chemand Corporation
    Inventor: Kenneth A. Johnson
  • Patent number: 5390322
    Abstract: Apparatus and methods for providing memory backup of sterilizer cycle progress in a sterilizer control apparatus are disclosed. The control apparatus includes a microprocessor operable to detect a drop or failure in power from the external source, a RAM for temporary storage of data from the microprocessor, and a clock chip. The clock chip and the RAM receive their power from a backup voltage source which is normally charged by the external power source. The clock chip includes a bit which can be set by receipt of an input signal.A comparator circuit is connected to compare the backup voltage VBAK to the minimum power required for accurately retaining memory in the RAM. When VBAK falls below the minimum required power, the comparator sends a signal to the clock chip to set the bit. After power is restored, the microprocessor checks the bit in the clock, and, if the bit is not set, continues operating the sterilizing cycle from the point at which it was interrupted by the power failure.
    Type: Grant
    Filed: February 1, 1991
    Date of Patent: February 14, 1995
    Inventors: Michael J. O'Brien, Charles E. Ellis, Kenneth A. Johnson
  • Patent number: 5348711
    Abstract: A dental handpiece sterilizer includes a sterilization chamber with an internal manifold system having outlet connectors into which dental handpieces can be plugged. A sterilant vapor introduced to the manifold flows through the dental handpieces coupled to the manifold and into the interior of the chamber so that it contacts the exterior surfaces of the handpieces before exiting the sterilant chamber.
    Type: Grant
    Filed: July 21, 1993
    Date of Patent: September 20, 1994
    Assignee: MDT Corporation
    Inventors: Kenneth A. Johnson, Steven W. White
  • Patent number: 5336311
    Abstract: This invention relates to structural aggregate pigment products that are cationic, and have improved wet-end retention. A method for converting anionic pigments to cationic pigments is also provided. More particularly, a structural aggregate pigment comprising a clay and/or titanium dioxide or other particulate components, and a functional microgel made from silicon and aluminum or zinc gel formers and a gelling agent such as calcium chloride, can be cationized by adding an effective amount of modified or unmodified epichlorhydrin dimethylamine condensate to a slurry of the structured pigment. The resulting cationic pigments have superior papermaking characteristics and a much improved retention.
    Type: Grant
    Filed: July 7, 1992
    Date of Patent: August 9, 1994
    Assignee: Nord Kaolin Company
    Inventors: Jerry L. Curtis, Kenneth A. Johnson, Lester W. House
  • Patent number: 5270948
    Abstract: The electronic microprocessor controller of a sterilizer includes a circuit board functionally controlled by software. The software includes a fist user operation mode for normal operation of the sterilizer. A diagnostic operation mode is initiated by insertion of a jumper in the circuit board, and provides for repetitive cycle operation without opening the door, quickly advancing to a cycle phase, without completion of intervening phases, printing of variables not available in the user operation mode, and calibration of the circuitry.
    Type: Grant
    Filed: February 1, 1991
    Date of Patent: December 14, 1993
    Assignee: MDT Corporation
    Inventors: Michael J. O'Brien, Charles E. Ellis, Jr., Kenneth A. Johnson
  • Patent number: 5185709
    Abstract: Apparatus and methods for detecting pressure changes within the chamber of a pressure vessel are disclosed. The apparatus includes a pressure transducer which is gauge-referenced to atmospheric pressure and has bi-directional capability of determining pressure changes above and below atmospheric pressure. The transducer is structured to provide frequency output and is therefore connected directly to a microprocessor. The microprocessor includes structure programmed to compensate for variations in existing ambient atmospheric pressure.
    Type: Grant
    Filed: February 1, 1991
    Date of Patent: February 9, 1993
    Assignee: MDT Corporation
    Inventors: Kenneth A. Johnson, Charles E. Ellis, Jr.
  • Patent number: 5119885
    Abstract: An improved element basket for a rotary air preheater includes a tubular structural element disposed in each of the four corners of the basket frame and extending therethrough in mutually parallel relation. During installation of the basket into the preheater rotor, rods are provided each having an attachment member formed in one end. The rods are inserted into the tubular elements and retaining clamps are attached thereto to prevent withdrawal. A chain or rope is attached to the attachment members, thus allowing the basket to be conveniently drawn into a desired position in the rotor.
    Type: Grant
    Filed: March 13, 1991
    Date of Patent: June 9, 1992
    Assignee: ABB Air Preheater, Inc.
    Inventor: Kenneth A. Johnson
  • Patent number: 5098200
    Abstract: A temperature monitoring system provides a first, coarse temperature output signal, and a second, fine temperature output signal based on the first, coarse output signal. The fine output signal has a higher resolution than the coarse output signal, and permits fine temperature control of an apparatus at a variable control output. The fine output signal is automatically calibrated upon switching from the coarse to the fine signal.
    Type: Grant
    Filed: February 1, 1991
    Date of Patent: March 24, 1992
    Assignee: MDT Corporation
    Inventors: Michael J. O'Brien, Kenneth A. Johnson, Charles E. Ellis, Jr.