Patents by Inventor Andrew Bullen

Andrew Bullen 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: 20240126908
    Abstract: A method and apparatus for hard deletion of user data are described. The method may include receiving a request from a user computer system to delete user data. The method may also include determining a unique user identifier associated by a system with a user making the request. The method may also include determining whether a data partition, in which data generated by a job or subsystem of the computer system is stored, is predicted to contain a record having the unique user identifier. Then, the method may include searching, when the data partition is predicted to contain a record having the unique user identifier, data records stored in the data partition for a user data record based on the unique identifier, and performing a hard deletion of the user data record from the partition when found during the searching.
    Type: Application
    Filed: December 20, 2023
    Publication date: April 18, 2024
    Inventors: Ryan Drapeau, Andrew Bullen
  • Patent number: 11914732
    Abstract: A method and apparatus for hard deletion of user data are described. The method may include receiving a request from a user computer system to delete user data. The method may also include determining a unique user identifier associated by a system with a user making the request. The method may also include determining whether a data partition, in which data generated by a job or subsystem of the computer system is stored, is predicted to contain a record having the unique user identifier. Then, the method may include searching, when the data partition is predicted to contain a record having the unique user identifier, data records stored in the data partition for a user data record based on the unique identifier, and performing a hard deletion of the user data record from the partition when found during the searching.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: February 27, 2024
    Assignee: STRIPE, INC.
    Inventors: Ryan Drapeau, Andrew Bullen
  • Publication number: 20220188439
    Abstract: A method and apparatus for hard deletion of user data are described. The method may include receiving a request from a user computer system to delete user data. The method may also include determining a unique user identifier associated by a system with a user making the request. The method may also include determining whether a data partition, in which data generated by a job or subsystem of the computer system is stored, is predicted to contain a record having the unique user identifier. Then, the method may include searching, when the data partition is predicted to contain a record having the unique user identifier, data records stored in the data partition for a user data record based on the unique identifier, and performing a hard deletion of the user data record from the partition when found during the searching.
    Type: Application
    Filed: December 16, 2020
    Publication date: June 16, 2022
    Inventors: Ryan Drapeau, Andrew Bullen
  • Patent number: 7402849
    Abstract: A microfabricated probe array for nanolithography and process for designing and fabricating the probe array. The probe array consists of individual probes that can be moved independently using thermal bimetallic actuation or electrostatic actuation methods. The probe array can be used to produce traces of diffusively transferred chemicals on the substrate with sub-1 micrometer resolution, and can function as an arrayed scanning probe microscope for subsequent reading and variation of transferred patterns.
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: July 22, 2008
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Chang Liu, Ming Zhang, David Andrew Bullen
  • Patent number: 7247895
    Abstract: Method and apparatus for selectively actuating a cantilevered probe for applying a compound to a substrate in nanolithography. A probe having a probe electrode and a substrate having a counter electrode are provided. Voltage applied to the probe electrode and/or counter electrode provides electrostatic attraction between them, moving a probe tip into sufficient proximity to the substrate to apply the patterning compound. Alternatively, a flexible cantilevered probe anchored to a holder includes a layer of conductive material forming a probe electrode. A counter electrode on the holder faces the probe electrode. The holder and probe are positioned so that a probe tip applies the compound to the substrate. The probe is disposed between the substrate and the counter electrode. An electrostatic attractive force generated between the probe electrode and the counter electrode flexes the probe and lifts the tip away from the substrate to suspend writing.
    Type: Grant
    Filed: March 16, 2006
    Date of Patent: July 24, 2007
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Chang Liu, David Andrew Bullen
  • Patent number: 7241565
    Abstract: A method of automatically conducting patch clamp testing is provided wherein a liquid interface is utilized. The liquid interface is defined in a liquid suspension between layers of distinct densities such that cells introduced into the liquid suspension float towards the interface. Thus, the cells are locatable relative to the interface.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: July 10, 2007
    Assignee: Bristol-Myers Squibb Company
    Inventors: Andrew Bullen, Charles David Weaver
  • Patent number: 7182915
    Abstract: The present application is directed to pipette configurations, arrays of the same and methods for using such pipettes and arrays to accomplish electrical measurements, including whole cell and on cell measurements. In one aspect of the present invention, a pipette includes a hollow tubular section having a distal portion and a tip portion. A bubble is formed at the tip and includes an interior chamber in communication with the hollow tubular section at an end adjacent to the bubble portion. The bubble may have a diameter greater than the diameter of an adjacent portion of the hollow tubular section. An aperture is formed between the internal chamber and an exterior surface of the bubble to accommodate seal formation.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: February 27, 2007
    Assignee: Bristol-Myers Squibb Company
    Inventors: Andrew Bullen, Charles David Weaver
  • Publication number: 20060257934
    Abstract: The present invention is directed to a rapid, quantitative screening procedure of ?-aminobutyric acid (GABA)-mediated halide transport in cells with the use of a conventional 384-well fluorescence plate reader (FLIPR). The halide sensor is a novel yellow fluorescent protein (YFP) with mutations at positions 46/148/152 that exhibits bright fluorescence at 37° C.
    Type: Application
    Filed: April 10, 2006
    Publication date: November 16, 2006
    Inventors: Svetlana Tertyshnikova, Steven Dworetzky, Andrew Bullen, Joanne Natale, Corinne Griffin, David Weaver
  • Patent number: 6867443
    Abstract: A microfabricated probe array for nanolithography and process for designing and fabricating the probe array. The probe array consists of individual probes that can be moved independently using thermal bimetallic actuation or electrostatic actuation methods. The probe array can be used to produce traces of diffusively transferred chemicals on the substrate with sub-1 micrometer resolution, and can function as an arrayed scanning probe microscope for subsequent reading and variation of transferred patterns.
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: March 15, 2005
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Chang Liu, Ming Zhang, David Andrew Bullen
  • Publication number: 20040119490
    Abstract: A microfabricated probe array for nanolithography and process for designing and fabricating the probe array. The probe array consists of individual probes that can be moved independently using thermal bimetallic actuation or electrostatic actuation methods. The probe array can be used to produce traces of diffusively transferred chemicals on the substrate with sub-1 micrometer resolution, and can function as an arrayed scanning probe microscope for subsequent reading and variation of transferred patterns.
    Type: Application
    Filed: August 25, 2003
    Publication date: June 24, 2004
    Applicant: The Board of Trustees of the University of Illinois
    Inventors: Chang Liu, Ming Zhang, David Andrew Bullen
  • Patent number: 6642129
    Abstract: A microfabricated probe array for nanolithography and process for designing and fabricating the probe array. The probe array consists of individual probes that can be moved independently using thermal bimetallic actuation or electrostatic actuation methods. The probe array can be used to produce traces of diffusively transferred chemicals on the substrate with sub-1 micrometer resolution, and can function as an arrayed scanning probe microscope for subsequent reading and variation of transferred patterns.
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: November 4, 2003
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Chang Liu, Ming Zhang, David Andrew Bullen
  • Publication number: 20030138767
    Abstract: A method of automatically conducting patch clamp testing is provided wherein a liquid interface is utilized. The liquid interface is defined in a liquid suspension between layers of distinct densities such that cells introduced into the liquid suspension float towards the interface. Thus, the cells are locatable relative to the interface.
    Type: Application
    Filed: November 27, 2002
    Publication date: July 24, 2003
    Inventors: Andrew Bullen, Charles David Weaver
  • Publication number: 20030132109
    Abstract: The present application is directed to pipette configurations, arrays of the same and methods for using such pipettes and arrays to accomplish electrical measurements, including whole cell and on cell measurements. In one aspect of the present invention, a pipette includes a hollow tubular section having a distal portion and a tip portion. A bubble is formed at the tip and includes an interior chamber in communication with the hollow tubular section at an end adjacent to the bubble portion. The bubble may have a diameter greater than the diameter of an adjacent portion of the hollow tubular section. An aperture is formed between the internal chamber and an exterior surface of the bubble to accommodate seal formation.
    Type: Application
    Filed: November 27, 2002
    Publication date: July 17, 2003
    Inventors: Andrew Bullen, Charles David Weaver
  • Publication number: 20030022470
    Abstract: A microfabricated probe array for nanolithography and process for designing and fabricating the probe array. The probe array consists of individual probes that can be moved independently using thermal bimetallic actuation or electrostatic actuation methods. The probe array can be used to produce traces of diffusively transferred chemicals on the substrate with sub-1 micrometer resolution, and can function as an arrayed scanning probe microscope for subsequent reading and variation of transferred patterns.
    Type: Application
    Filed: December 7, 2001
    Publication date: January 30, 2003
    Applicant: The Board of Trustees of the University of Illinois
    Inventors: Chang Liu, Ming Zhang, David Andrew Bullen