Patents by Inventor ZHICHENG TIAN

ZHICHENG TIAN 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: 20240053522
    Abstract: An optical construction includes a reflective polarizer and an optical film. The optical film includes a matrix and a plurality of first particles dispersed in the matrix. Each of the matrix and the plurality of first particles includes a silicone polyoxamide and an acrylate polymer. For substantially normally incident light and for at least a first wavelength in a first wavelength range, the reflective polarizer reflects about 60% for a first polarization state and transmits about 40% for an orthogonal second polarization state. For at least a second wavelength in a second wavelength range, each of the reflective polarizer and the optical film transmits about 60% of an incident light for each of the first and second polarization states. For at least the first wavelength, optical film has an optical haze and a depolarization ratio. A ratio of the depolarization ratio to the optical haze is less than 0.1.
    Type: Application
    Filed: November 2, 2021
    Publication date: February 15, 2024
    Inventors: Bharat R. Acharya, Brett J. Sitter, Robert D. Taylor, Zhicheng Tian, James P. DiZio, Quinn D. Sanford, Kent C. Hackbarth, Matthew E. Sousa
  • Patent number: 11827754
    Abstract: Provided is a method of forming a fibrin hydrogel composition, the method including providing a fibrin hydrogel or precursor thereof, comprising fibrin hydrogel forming salt. The fibrin hydrogel forming salt concentration is greater than or equal to the threshold concentration to form a fibrin hydrogel. The method further includes combining the fibrin hydrogel with a carrier material. The concentration of the carrier material typically ranges from 0.1 to about 50 wt.-%. The method further includes reducing the salt concentration below the threshold concentration to form a fibrin hydrogel.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: November 28, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Jason W. Bjork, Amy S. Determan, Jonathan J. O'Hare, Robert A. Asmus, James P. Dizio, Zhicheng Tian
  • Publication number: 20220298389
    Abstract: Adhesive compositions are disclosed that include an octenidine salt, a resin system, a plasticizer, and a cidatrope. The dried adhesive compositions are substantially free of water and C2-C5 alcohols. The adhesive compositions disclosed are formulations that provide rapid and persistent antimicrobial activity and may be useful, for example, in wound dressings, surgical drapes, and medical tapes.
    Type: Application
    Filed: May 18, 2020
    Publication date: September 22, 2022
    Inventors: Ying ZHANG, Robert A. ASMUS, Zhicheng TIAN, Kheng VANG, James DIZIO, Patrick J. PARKS, Brian E. SPIEWAK
  • Publication number: 20220105018
    Abstract: Antimicrobial compositions containing an antimicrobial agent, such as an octenidine salt, a solubilizer, such as a glycol, and a cidatrope, such as a C8-C26 alcohol, an ether, an amide, an ester, and combinations thereof, where the compositions are substantially free of water and C2-C5 alcohols and methods of making such antimicrobial compositions.
    Type: Application
    Filed: March 26, 2020
    Publication date: April 7, 2022
    Inventors: Ying ZHANG, Robert A. ASMUS, Zhicheng TIAN, Kheng VANG, James P. DIZIO, Patrick J. PARKS, Brian E. SPIEWAK
  • Publication number: 20210324150
    Abstract: The invention includes a forced-air blanket for providing a profusion of air to a patient, comprising a bottom layer with a plurality of openings configured to allow a profusion of air to pass through the bottom layer and an upper layer bonded to the bottom layer around a periphery, wherein the upper layer is also bonded to bottom layer by a plurality of linear seals and a plurality of staked seals. In an embodiment, at least one of more of the linear seals have one end which is joined to a portion of the periphery. In another embodiment, the forced-air blanket may further include at least one elongated seal that is positioned proximate to the inlet. The arrangement of the plurality of staked seals, elongated seals and linear seals assists in providing a blanket that is of a low-profile with even air distribution.
    Type: Application
    Filed: October 4, 2017
    Publication date: October 21, 2021
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Jason W. Bjork, AMY S. DETERMAN, JONATHAN J. O'HARE, ROBERT A. ASMUS, JAMES P. DIZIO, ZHICHENG TIAN
  • Publication number: 20210198536
    Abstract: Phase separated articles that include a matrix phase including an acrylate copolymer; and a silicone elastomer phase stably dispersed in the matrix phase. Methods of forming phase separated articles, and articles including phase separated articles are also included.
    Type: Application
    Filed: May 23, 2019
    Publication date: July 1, 2021
    Inventors: Encai HAO, Zhicheng TIAN, Dong-Wei ZHU, Zhaohui YANG, James P. DIZIO, Ying ZHANG, Junkang J. LIU, Kent C. HACKBARTH
  • Publication number: 20210100929
    Abstract: Disclosed is a fibrinogen composition. The fibrinogen composition comprises denatured fibrinogen hydrogel having a fibrinogen concentration ranging from 0.1 to 15 wt.-% and a fibrinogen hydrogel forming salt at a concentration less than a threshold concentration to form the fibrinogen hydrogel. In some examples, the fibrinogen composition is dehydrated denatured fibrinogen hydrogel, where the fibrinogen composition comprises salt at a concentration no greater than 20 wt.-%.
    Type: Application
    Filed: November 23, 2020
    Publication date: April 8, 2021
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: JAMES P. DIZIO, ZHICHENG TIAN, JAMES W. BJORK, AMY S. DETERMAN, ROBERT A. ASMUS, JONATHAN J. O'HARE
  • Patent number: 10940233
    Abstract: Provided is a method of forming a fibrinogen hydrogel composition, the method including providing a fibrinogen hydrogel or precursor thereof, comprising fibrinogen hydrogel forming salt. The fibrinogen hydrogel forming salt concentration is greater than or equal to the threshold concentration to form a fibrinogen hydrogel. The method further includes denaturing the fibrinogen hydrogel such as by heating. The method optionally further includes combining the fibrinogen hydrogel with a carrier material. When present, the concentration of the carrier material typically ranges from 0.1 to about 50 wt.-%. The method further includes reducing the salt concentration below the threshold concentration to form a fibrinogen hydrogel.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: March 9, 2021
    Assignee: 3M Innovative Properties Company
    Inventors: James P. Dizio, Zhicheng Tian, Jason W. Bjork, Amy S. Determan, Robert A. Asmus, Jonathan J. O'Hare
  • Publication number: 20200038546
    Abstract: Provided is a method of forming a fibrinogen hydrogel composition, the method including providing a fibrinogen hydrogel or precursor thereof, comprising fibrinogen hydrogel forming salt. The fibrinogen hydrogel forming salt concentration is greater than or equal to the threshold concentration to form a fibrinogen hydrogel. The method further includes denaturing the fibrinogen hydrogel such as by heating. The method optionally further includes combining the fibrinogen hydrogel with a carrier material. When present, the concentration of the carrier material typically ranges from 0.1 to about 50 wt.-%. The method further includes reducing the salt concentration below the threshold concentration to form a fibrinogen hydrogel.
    Type: Application
    Filed: October 4, 2017
    Publication date: February 6, 2020
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: JAMES P. DIZIO, ZHICHENG TIAN, JASON W. BJORK, AMY S. DETERMAN, ROBERT A. ASMUS, JONATHAN J. O'HARE