Patents by Inventor XiaoFei Qin

XiaoFei Qin 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: 20180361026
    Abstract: A method of preparing a decellularized placental membrane is provided. The method comprises removing cells from a pre-decellularized placental membrane comprising an amnion layer and a chorion layer to produce a decellularized placental membrane without separating the amnion layer from the chorion layer. The pre-decellularized placental membrane is obtained from an amniotic sac, and the decellularized placental membrane comprises the amnion layer and the chorion layer. Also provided is a decellularized placental membrane and a placenta-derived graft comprising the decellularized placental membrane. Further provided are the uses of the decellularized placental membrane or the placenta-derived graft.
    Type: Application
    Filed: December 23, 2016
    Publication date: December 20, 2018
    Applicant: LifeNet Health
    Inventors: Xiaofei QIN, Silvia Chen, Lindsey Aschenbach, Jiingsong Chen
  • Patent number: 10106591
    Abstract: The invention relates to truncated growth factors and variants thereof. The invention also relates to methods of making and using the truncated growth factors. The invention further relates to compositions including a protease and a growth factor comprising a bone morphogenic protein (BMP) or a variant thereof. The invention also relates to methods of using the composition.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: October 23, 2018
    Assignee: LifeNet Health
    Inventors: Xiaofei Qin, Silvia Chen, Jingsong Chen, James Clagett
  • Publication number: 20180201659
    Abstract: The invention relates to truncated BMP-4 growth factors and variants thereof. The invention also relates to methods of making and using the truncated BMP-4 growth factors.
    Type: Application
    Filed: March 12, 2018
    Publication date: July 19, 2018
    Applicant: LifeNet Health
    Inventors: Xiaofei QIN, Silvia Chen, Jingsong Chen, James Clagett
  • Publication number: 20180170988
    Abstract: The invention relates to truncated BMP-7 growth factors and variants thereof. The invention also relate to methods of making and using the truncated BMP-7 growth factors.
    Type: Application
    Filed: February 8, 2018
    Publication date: June 21, 2018
    Applicant: LifeNet Health
    Inventors: Xiaofei QIN, Silvia Chen, Jingsong Chen, James Clagett
  • Patent number: 9982816
    Abstract: A pushing and jam-releasing pup joint of a formation tester comprises a first jam-releasing arm (1), a first three-way reversing valve (V1), a two-way reversing valve (V2) and a third three-way reversing valve (V4), a withdrawal cavity (Q11) of the first jam-releasing arm (1) is connected with the first three-way reversing valve (V1) which can communicate with an energy accumulation cavity (NQ) of an energy accumulator and the two-way reversing valve (V2), the two-way reversing valve (V2) can be communicated with a pressure oil main line (G2) of a hydraulic system, and an extension cavity (Q12) of the first jam-releasing arm (1) is connected with the third three-way reversing valve (V4) which can communicate with the pressure oil main line (G2) and a return oil main line (G1) of hydraulic system. Jam-releasing pup joint effectively solves the problem of jam release when mud adheres to EFDT and makes same jammed.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: May 29, 2018
    Assignees: China National Offshore Oil Corporation, China Oilfield Services Limited
    Inventors: Xiaofei Qin, Yongren Feng, Wanguang Song, Xiaodong Chu, Lei Wang
  • Patent number: 9951112
    Abstract: The invention relates to truncated BMP-4 growth factors and variants thereof. The invention also relates to methods of making and using the truncated BMP-4 growth factors.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: April 24, 2018
    Assignee: LifeNet Health
    Inventors: Xiaofei Qin, Silvia Chen, Jingsong Chen, James Clagett
  • Publication number: 20180104062
    Abstract: A shaped cartilage matrix isolated from a human or animal where the cartilage has been crafted to facilitate disinfection, cleaning, devitalization, recellularization, and/or integration after implantation. Also, a process for repairing a cartilage defect with the cartilage matrix. The matrix is in the form of an osteochondral plug including a cartilage cap ad subchondral bone, wherein one or more gaps, slats, bores, or channels extend through the tidemark at the interface between the cartilage cap and the subchondral bone.
    Type: Application
    Filed: July 27, 2017
    Publication date: April 19, 2018
    Inventors: Silvia Sihui Chen, Xiaofei Qin, Jingsong Chen, Lloyd Wolfinbarger, JR.
  • Patent number: 9926357
    Abstract: The invention relates to truncated BMP-7 growth factors and variants thereof. The invention also relates to methods of making and using the truncated BMP-7 growth factors.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: March 27, 2018
    Assignee: LifeNet Health
    Inventors: Xiaofei Qin, Silvia Chen, Jingsong Chen, James Clagett
  • Publication number: 20180044629
    Abstract: The invention relates to biologically functional scaffolds having a porous structure, methods of preparing, and methods of use thereof. The invention also relates to methods of repairing a defect, methods of culturing cells and promoting differentiation of stem cells using the same.
    Type: Application
    Filed: February 9, 2016
    Publication date: February 15, 2018
    Applicant: LifeNet Health
    Inventors: Xiaofei QIN, Silvia CHEN
  • Publication number: 20180009865
    Abstract: The invention relates to truncated growth factors and variants thereof. The invention also relates to methods of making and using the truncated growth factors.
    Type: Application
    Filed: September 14, 2017
    Publication date: January 11, 2018
    Applicant: LifeNet Health
    Inventors: Xiaofei Qin, Silvia Chen, Jingsong Chen, James A. Clagett
  • Publication number: 20170369546
    Abstract: The invention relates to truncated growth factors and variants thereof. The invention also relates to methods of making and using the truncated growth factors. The invention further relates to compositions including a protease and a growth factor comprising a bone morphogenic protein (BMP) or a variant thereof. The invention also relates to methods of using the composition.
    Type: Application
    Filed: August 30, 2017
    Publication date: December 28, 2017
    Applicant: LifeNet Health
    Inventors: Xiaofei Qin, Silvia Chen, Jingsong Chen, James Clagett
  • Patent number: 9809635
    Abstract: The invention relates to truncated growth factors and variants thereof. The invention also relates to methods of making and using the truncated growth factors.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: November 7, 2017
    Assignee: LifeNet Health
    Inventors: Xiaofei Qin, Silvia Chen, Jingsong Chen, James A. Clagett
  • Patent number: 9744043
    Abstract: The invention is directed to producing a shaped cartilage matrix isolated from a human or animal where the cartilage has been crafted to facilitate disinfection, cleaning, devitalization, recellularization, and/or integration after implantation. The invention relates to a process for repairing a cartilage defect and implantation of a cartilage graft into a human or animal by crafting the cartilage matrix into individual grafts, disinfecting and cleaning the cartilage graft, applying a pretreatment solution to the cartilage graft, removing cellular debris using an extracting solution to produce a devitalized cartilage graft, implanting the cartilage graft into the cartilage defect with or without an insertion device, and sealing the implanted cartilage graft with recipient tissue. The devitalized cartilage graft is optionally recellularized in vitro, in vivo, or in situ with viable cells to render the tissue vital before or after the implantation.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: August 29, 2017
    Assignee: Lifenet Health
    Inventors: Silvia S. Chen, Xiaofei Qin, Jingsong Chen, Lloyd Wolfinbarger, Jr.
  • Publication number: 20160115451
    Abstract: The present invention is directed to a device for the growth of new bone or bone-like tissue under in vitro cell culture conditions.
    Type: Application
    Filed: June 4, 2015
    Publication date: April 28, 2016
    Applicant: LIFENET HEALTH
    Inventors: Lloyd Wolfinbarger, JR., Xiaofei Qin
  • Publication number: 20150316183
    Abstract: A pushing and jam-releasing pup joint of a formation tester comprises a first jam-releasing arm (1), a first three-way reversing valve (V1), a two-way reversing valve (V2) and a third three-way reversing valve (V4), a withdrawal cavity (Q11) of the first jam-releasing arm (1) is connected with the first three-way reversing valve (V1) which can communicate with an energy accumulation cavity (NQ) of an energy accumulator and the two-way reversing valve (V2), the two-way reversing valve (V2) can be communicated with a pressure oil main line (G2) of a hydraulic system, and an extension cavity (Q12) of the first jam-releasing arm (1) is connected with the third three-way reversing valve (V4) which can communicate with the pressure oil main line (G2) and a return oil main line (G1) of hydraulic system. Jam-releasing pup joint effectively solves the problem of jam release when mud adheres to EFDT and makes same jammed.
    Type: Application
    Filed: November 20, 2013
    Publication date: November 5, 2015
    Inventors: Xiaofei QIN, Yongren FENG, Wanguang SONG, Xiaodong CHU, Lei WANG
  • Patent number: 9125743
    Abstract: The present invention is directed toward recellularizing a devitalized cartilage graft with viable recellularizable cells in vivo, in situ, or in vitro to render the tissue vital. The present invention is also directed toward repairing a cartilage defect and implanting a cartilage graft into a human or animal by crafting a cartilage matrix into individual grafts, disinfecting and cleaning the cartilage graft, applying a pretreatment solution to the cartilage graft, removing cellular debris using an extracting solution to produce a devitalized cartilage graft, recellularizing the devitalized cartilage graft, implanting the cartilage graft into the cartilage defect with or without an insertion device, and sealing the implanted cartilage graft with recipient tissue. The devitalized cartilage graft is optionally stored between the removing cellular debris and the recellularizing steps.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: September 8, 2015
    Assignee: LifeNet Health
    Inventors: Silvia Sihui Chen, Xiaofei Qin, Jingsong Chen, Lloyd Wolfinbarger, Mark Moore, Rony Thomas, Alyce Linthurst Jones
  • Patent number: 9080141
    Abstract: The present invention is directed to a device for the growth of new bone or bone-like tissue under in vitro cell culture conditions.
    Type: Grant
    Filed: September 11, 2006
    Date of Patent: July 14, 2015
    Assignee: LifeNet Health
    Inventors: Lloyd Wolfinbarger, Xiaofei Qin
  • Publication number: 20150064163
    Abstract: The invention relates to truncated growth factors and variants thereof. The invention also relates to methods of making and using the truncated growth factors. The invention further relates to compositions including a protease and a growth factor comprising a bone morphogenic protein (BMP) or a variant thereof. The invention also relates to methods of using the composition.
    Type: Application
    Filed: September 2, 2012
    Publication date: March 5, 2015
    Applicant: LIFENET HEALTH
    Inventors: Xiaofei Qin, Silvia Chen, Jingsong Chen, James Clagett
  • Publication number: 20130196910
    Abstract: The invention relates to truncated growth factors and variants thereof. The invention also relates to methods of making and using the truncated growth factors.
    Type: Application
    Filed: March 24, 2011
    Publication date: August 1, 2013
    Applicant: LIFENET HEALTH
    Inventors: Xiaofei Qin, Silvia Chen, Jingsong Chen, James Clagett
  • Publication number: 20130196909
    Abstract: The invention relates to truncated growth factors and variants thereof. The invention also relate to methods of making and using the truncated growth factors.
    Type: Application
    Filed: March 24, 2011
    Publication date: August 1, 2013
    Applicant: LIFENET HEALTH
    Inventors: Xiaofei Qin, Silvia Chen, Jingsong Chen, James Clagett