Patents by Inventor Chang JIANG

Chang JIANG 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: 20250209954
    Abstract: An electronic display including a display panel that includes a plurality of display pixels having non-uniform luminance characteristics. The electronic display also includes pixel uniformity correction circuitry configured to compensate for the non-uniform luminance characteristics of the display pixels based on a pixel luminance correction factor selected based on pixel group luminance error patterns corresponding to locations of the display pixels.
    Type: Application
    Filed: October 31, 2024
    Publication date: June 26, 2025
    Inventors: Chang-Jiang Chen, Suraj P. Gorkhali, Patrick R. Cruce, Nicolas Le Dortz, Yanming Li, Hyunwoo Nho, Fangwang Gou, Hao Yang, Heesang Suh, Jun Qi, Mookyung Son
  • Patent number: 12329924
    Abstract: A device for connection to a medical connector, the device includes a cap having an annular wall having an exterior wall surface and an interior wall surface including a plurality of inwardly extending protrusions sized and shaped to frictionally engage a male luer, and a peelable seal. The cap configured to define a chamber to contain an absorbent material and disinfectant or antimicrobial agent. The cap includes one or more threads adapted to engage with a female luer connector. The cap is adapted to engage a male luer connector in a press-fit connection. The peelable seal prevents the disinfectant or the antimicrobial agent from exiting the chamber. Also described are methods of disinfecting a medical connector, and apparatuses comprising a device for disinfecting a medical connector.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: June 17, 2025
    Assignee: Becton, Dickinson and Company
    Inventors: Chang Jiang, Nichola Charles
  • Patent number: 12329925
    Abstract: A cap for connection to a medical connector comprises: a housing, a protrusion, a disinfection sponge, and a pressure seal. The protrusion includes an inner thread on an inner surface, the inner thread being sufficient to interlock with a mating feature of a female medical connector. The inner surface of the protrusion defines a second cavity. The protrusion includes an outer thread on an outer surface, the outer thread being sufficient to interlock with a mating feature of a male medical connector. The disinfection sponge is disposed on the second cavity. The pressure seal is attached to the housing and disposed adjacent to a surface of the disinfection sponge. The pressure seal can comprise a flexible insert attached to an interior surface of the top wall of the housing. The pressure seal can comprise a combination of: an elongate member and an insert that is slidably engaged with the elongate member.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: June 17, 2025
    Assignee: Becton, Dickinson and Company
    Inventors: Chang Jiang, Saravanababu Murugesan
  • Publication number: 20250073442
    Abstract: A device for connection to a medical connector, the device includes a cap body, a coupling cylinder adapted to engage with a male luer connector and a female luer connector, a bulb compartment filled with air, a reagent compartment filled with disinfectant or an antimicrobial reagent, and a passageway connecting the bulb compartment to the reagent compartment. The reagent compartment includes an exterior wall surface, an interior wall surface, an array of resealable pores densely integrated throughout the exterior wall surface and the interior wall surface of the reagent compartment, and a distal tip. The passageway may be positioned in an aperture of the proximal wall of the cap body. The coupling cylinder may include an O-ring.
    Type: Application
    Filed: November 20, 2024
    Publication date: March 6, 2025
    Applicant: Becton, Dickinson and Company
    Inventor: Chang Jiang
  • Publication number: 20250063282
    Abstract: Aspects of the subject technology relate to electronic devices having speakers. An electronic device may operate a pair of speakers to in a way that mitigates electromagnetic interference with a display of the electronic device. For example, the speakers may be operated acoustically and mechanically in phase, and electrically out of phase, to mitigates interference with a display of the electronic device.
    Type: Application
    Filed: August 14, 2023
    Publication date: February 20, 2025
    Inventors: Aneesh R. KUDEKAR, Chang-Jiang CHEN, Mohammad Reza ESMAEILI RAD, Stuart M. NEVILL, Youchul JEONG, Yanghee KIM
  • Patent number: 12186521
    Abstract: A device for connection to a medical connector, the device includes a cap body, a coupling cylinder adapted to engage with a male luer connector and a female luer connector, a bulb compartment filled with air, a reagent compartment filled with disinfectant or an antimicrobial reagent, and a passageway connecting the bulb compartment to the reagent compartment. The reagent compartment includes an exterior wall surface, an interior wall surface, an array of resealable pores densely integrated throughout the exterior wall surface and the interior wall surface of the reagent compartment, and a distal tip. The passageway may be positioned in an aperture of the proximal wall of the cap body. The coupling cylinder may include an O-ring.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: January 7, 2025
    Assignee: Becton, Dickinson and Company
    Inventor: Chang Jiang
  • Publication number: 20240335580
    Abstract: A disinfection cap is described for connection to a medical connector, the disinfection cap including a housing having a top wall and sidewall forming a cavity, a blockage feature disposed on the top wall of the cavity, the blockage feature for fluidly blocking a hub of a luer connector, disinfectant or antimicrobial agent disposed within an open cell foam structure within the cavity. The open cell foam structure releasing the disinfectant or antimicrobial agent as the open cell foam structure is depressed by the hub of the luer connector.
    Type: Application
    Filed: June 17, 2024
    Publication date: October 10, 2024
    Applicant: Becton, Dickinson and Company
    Inventors: Chang Jiang, Narasinha C. Parasnis, Amir Harandi
  • Patent number: 12098785
    Abstract: A cap is described for connection to a medical connector, the cap includes a housing having a top wall and sidewall forming a first cavity, and a removable or integrally formed protrusion. The protrusion includes an inner thread on an inner surface, the inner thread being sufficient to interlock with a mating feature of a female needleless connector. The inner surface of the protrusion defines a second cavity. The protrusion includes an outer thread on an outer surface, the outer thread being sufficient to interlock with a mating feature of a male needleless connector. The second cavity configured to define a chamber to contain an absorbent material and disinfectant or antimicrobial agent. The cap may also include a peel seal and/or septum to prevent the disinfectant or the antimicrobial agent from exiting the second cavity. An exterior sidewall surface of the housing may include a plurality of grip members.
    Type: Grant
    Filed: April 27, 2022
    Date of Patent: September 24, 2024
    Assignee: Becton, Dickinson and Company
    Inventors: Paul P. Marici, Kevin M. Ryan, Chang Jiang, Michael Kwong Chan
  • Publication number: 20240299725
    Abstract: A disinfection cap is described for connection to a medical connector; the disinfection cap includes a housing having a top wall and sidewall forming a cavity. In one or more embodiments, a retention rod forming a fluid reservoir is disposed within the cavity for retaining disinfectant. In one or more embodiments, a corrugated capsule is disposed within the cavity for retaining disinfectant. Pressure buildup within the cavity due to insertion of a luer connector causes expulsion of disinfectant, thereby disinfecting the luer connector.
    Type: Application
    Filed: May 21, 2024
    Publication date: September 12, 2024
    Applicant: Becton, Dickinson and Company
    Inventors: Chang Jiang, Amir Harandi, Paul P. Marici, Jiayu Liu
  • Patent number: 12076522
    Abstract: A device for connection to a medical connector, the device includes an outer cap, an inner cap and a peelable seal. The outer cap configured to define a chamber to contain an absorbent material and disinfectant or antimicrobial agent. The outer cap including one or more threads adapted to engage with a female luer connector. The inner cap including one or more thread-tabs adapted to engage a male luer connector. The peelable seal prevents the disinfectant or the antimicrobial agent from exiting the chamber.
    Type: Grant
    Filed: February 4, 2022
    Date of Patent: September 3, 2024
    Assignee: Becton, Dickinson and Company
    Inventors: Nicholas Erekovcanski, Chang Jiang, Paul Marici
  • Publication number: 20240245900
    Abstract: A disinfection cap is described for connection to a medical connector, the disinfection cap includes a housing having a top wall and sidewall forming a cavity, an open cell foam structure disposed within the cavity and a closed cell foam structure disposed against the open cell foam structure, the closed cell foam structure having an interference fit between the closed cell foam structure and the inner surface of the housing. The closed cell foam structure may have a polygonal or star shape, wherein fluid can flow through a gap formed between the closed cell foam structure and the inner surface of the cavity. The open cell foam structure may be impregnated with disinfectant, whereby compression of the open cell foam structure causes excretion of the disinfectant upon insertion of a luer connector.
    Type: Application
    Filed: April 5, 2024
    Publication date: July 25, 2024
    Applicant: Becton, Dickinson and Company
    Inventors: Chang Jiang, Amir Harandi, Jiayu Liu
  • Patent number: 12029828
    Abstract: A disinfection cap is described for connection to a medical connector, the disinfection cap including a housing having a top wall and sidewall forming a cavity, a blockage feature disposed on the top wall of the cavity, the blockage feature for fluidly blocking a hub of a luer connector, disinfectant or antimicrobial agent disposed within an open cell foam structure within the cavity. The open cell foam structure releasing the disinfectant or antimicrobial agent as the open cell foam structure is depressed by the hub of the luer connector.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: July 9, 2024
    Assignee: Becton, Dickinson and Company
    Inventors: Chang Jiang, Narasinha C. Parasnis, Amir Harandi
  • Publication number: 20240207596
    Abstract: A disinfection cap is described for connection to a medical connector, the disinfection cap includes a housing having a top wall and sidewall forming a cavity, disinfectant or antimicrobial agent and a ball disposed within the cavity. An outer surface of the housing includes a thread sufficient to interlock with a mating feature of a threaded connector, or more specifically a male luer connector. The cap may also include a peelable seal to prevent the disinfectant or the antimicrobial agent from exiting the cavity. The cavity of the cap may also include one or more ribs disposed on the inner surface of the cavity to retain the ball in the cavity, forming a flow channel as the ball is depressed further into the cavity. An exterior sidewall surface of the housing may include a plurality of grip members.
    Type: Application
    Filed: March 5, 2024
    Publication date: June 27, 2024
    Applicant: Becton, Dickinson and Company
    Inventors: Edward P. Browka, Chang Jiang, Amir Harandi, Tom Moskal, Jiayu Liu, Narasinha C. Parasnis
  • Patent number: 12005222
    Abstract: A device for connection to a medical connector, the device includes a cap, a container and a peelable seal. The cap configured to define a chamber to contain an absorbent material and disinfectant or antimicrobial agent. The cap includes one or more threads adapted to engage with a female luer connector. The cap is adapted to engage a male luer connector in a press-fit connection. The peelable seal prevents the disinfectant or the antimicrobial agent from exiting the chamber.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: June 11, 2024
    Assignee: Becton, Dickinson and Company
    Inventors: Chang Jiang, Nichola Charles
  • Patent number: 12005223
    Abstract: A disinfection cap is described for connection to a medical connector; the disinfection cap includes a housing having a top wall and sidewall forming a cavity. In one or more embodiments, a retention rod forming a fluid reservoir is disposed within the cavity for retaining disinfectant. In one or more embodiments, a corrugated capsule is disposed within the cavity for retaining disinfectant. Pressure buildup within the cavity due to insertion of a luer connector causes expulsion of disinfectant, thereby disinfecting the luer connector.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: June 11, 2024
    Assignee: Becton, Dickinson and Company
    Inventors: Chang Jiang, Amir Harandi, Paul P. Marici, Jiayu Liu
  • Patent number: 11975168
    Abstract: A disinfection cap is described for connection to a medical connector, the disinfection cap includes a housing having a top wall and sidewall forming a cavity, disinfectant or antimicrobial agent and a ball disposed within the cavity. An outer surface of the housing includes a thread sufficient to interlock with a mating feature of a threaded connector, or more specifically a male luer connector. The cap may also include a peelable seal to prevent the disinfectant or the antimicrobial agent from exiting the cavity. The cavity of the cap may also include one or more ribs disposed on the inner surface of the cavity to retain the ball in the cavity, forming a flow channel as the ball is depressed further into the cavity. An exterior sidewall surface of the housing may include a plurality of grip members.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: May 7, 2024
    Assignee: Becton, Dickinson and Company
    Inventors: Edward P. Browka, Chang Jiang, Amir Harandi, Tom Moskal, Jiayu Liu, Narasinha C. Parasnis
  • Publication number: 20240139493
    Abstract: Provided herein is a disinfecting device including a container containing a chlorhexidine-based solution having a chlorhexidine concentration of from 0.2-2.0% wt/vol. Provided also is a medical connector disinfected with the disinfecting device. A method of disinfecting a medical connector using the disinfecting device is also disclosed.
    Type: Application
    Filed: November 2, 2022
    Publication date: May 2, 2024
    Inventors: Kevin M. Ryan, Andrew Woodbridge Van Cott, Richard Bradley Timmers, Shoshana San Solo, Shishir Prasad, Narasinha C. Parasnis, Anurag Mathur, Chang Jiang, Kelsey Ann Graves, Joseph J. Dajcs, Qin Chen
  • Publication number: 20240139494
    Abstract: A disinfecting cap is described including a housing, a protrusion and a cap cover, the housing including a top wall, an essentially cylindrical sidewall forming a first cavity, and an open bottom end opposite the top wall formed by the cylindrical sidewall with an opening to the first cavity within the housing for receiving a hub of a female needleless connector or a male needleless connector, wherein the protrusion is positioned within the first cavity and includes an inner surface, an outer surface and an end distal the top wall of the housing, the inner surface of the protrusion defining a second cavity, and wherein the outer surface of the protrusion and an inner surface of the essentially cylindrical sidewall define a gap therebetween, and the cap cover is dimensioned and positioned to cover at least a portion of the gap between the outer surface of the protrusion and the inner surface of the housing.
    Type: Application
    Filed: December 15, 2023
    Publication date: May 2, 2024
    Applicant: Becton, Dickinson and Company
    Inventor: Chang Jiang
  • Patent number: 11969572
    Abstract: A disinfection cap is described for connection to a medical connector, the disinfection cap includes a housing having a top wall and sidewall forming a cavity, an open cell foam structure disposed within the cavity and a closed cell foam structure disposed against the open cell foam structure, the closed cell foam structure having an interference fit between the closed cell foam structure and the inner surface of the housing. The closed cell foam structure may have a polygonal or star shape, wherein fluid can flow through a gap formed between the closed cell foam structure and the inner surface of the cavity. The open cell foam structure may be impregnated with disinfectant, whereby compression of the open cell foam structure causes excretion of the disinfectant upon insertion of a luer connector.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: April 30, 2024
    Assignee: Becton, Dickinson and Company
    Inventors: Chang Jiang, Amir Harandi, Jiayu Liu
  • Patent number: D1056167
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: December 31, 2024
    Assignee: Foshan Youbu Medical Equipment Co., Ltd.
    Inventor: Chang Jiang