Patents by Inventor Guw-Dong Yeo

Guw-Dong Yeo 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: 20190270848
    Abstract: The present disclosure relates to a process for obtaining an ultrapure polymer by simply and effectively removing unreacted residual monomer in polymer, which is generated during production of a biodegradable polymer such as polylactic acid or derivatives thereof.
    Type: Application
    Filed: July 6, 2017
    Publication date: September 5, 2019
    Applicant: SAMYANG BIOPHARMACEUTICALS CORPORATION
    Inventors: Na Young LEE, Young Joo KOH, Guw Dong YEO
  • Patent number: 10022477
    Abstract: An anti-adhesion composition with a good anti-adhesion property as well as a good biocompatibility, a surgical mesh composite with anti-adhesion property comprising the same and method for producing the same are provided.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: July 17, 2018
    Assignee: SAMYANG BIOPHARMACEUTICALS CORPORATION
    Inventors: Sun-Woo Kim, Jun-Bae Kim, Guw-Dong Yeo, Hye-Sung Yoon
  • Publication number: 20180036414
    Abstract: Provided is a non-woven fabric type composite hemostatic agent, obtained by overlapping (i) at least one web of a first polymer selected from the group consisting of biodegradable polymers, oxidative regeneration cellulose, and alkali metal salt neutralizers of oxidative regeneration cellulose and (ii) at least one web of a second polymer selected from the group consisting of oxidative regeneration cellulose and alkali metal salt neutralizers thereof, followed by needle punching, compressing, and integrating.
    Type: Application
    Filed: April 14, 2016
    Publication date: February 8, 2018
    Applicant: SAMYANG BIOPHARMACEUTICALS CORPORATION
    Inventors: Hyun Kyoon KIM, Jin Su KIM, Hye Sung YOON, Jun Bae KIM, Guw Dong YEO
  • Patent number: 9883935
    Abstract: The present invention relates to a monofilament with a segmented pie structure formed by conjugated spinning of degradable polymers and non-degradable polymers, a hernia mesh having improved flexibility and biocompatibility, and a preparation method of the monofilament. More specifically, the hernia mesh of the present invention having improved flexibility and biocompatibility is prepared using the monofilament obtained by conjugated spinning of degradable polymers and non-degradable polymers into a segmented pie form, to control it to be gradually degraded in the body, whereby the stiffness of the early stage is removed, and thereby the foreign body sensation is also removed.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: February 6, 2018
    Assignee: SAMYANG BIOPHARMACEUTICALS CORPORATION
    Inventors: Guw-dong Yeo, Jun-Bae Kim, Jae-Hong Lee
  • Patent number: 9254348
    Abstract: Disclosed are a biodegradable, biocompatible hydrogel that can be used for sealants of suppressing the leakage of blood or air during surgical operation, tissue adhesives, anti-adhesive agents and drug delivery carriers, and a method for producing the same.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: February 9, 2016
    Assignee: SAMYANG BIOPHARMACEUTICALS CORPORATION
    Inventors: Young-Joo Koh, Hea-Kyung Kim, Sun-Woo Kim, Guw-Dong Yeo
  • Publication number: 20150374476
    Abstract: The present invention relates to a monofilament with a segmented pie structure formed by conjugated spinning of degradable polymers and non-degradable polymers, a hernia mesh having improved flexibility and biocompatibility, and a preparation method of the monofilament. More specifically, the hernia mesh of the present invention having improved flexibility and biocompatibility is prepared using the monofilament obtained by conjugated spinning of degradable polymers and non-degradable polymers into a segmented pie form, to control it to be gradually degraded in the body, whereby the stiffness of the early stage is removed, and thereby the foreign body sensation is also removed.
    Type: Application
    Filed: September 10, 2015
    Publication date: December 31, 2015
    Inventors: Guw-dong YEO, Jun-Bae Kim, Jae-Hong Lee
  • Publication number: 20150045818
    Abstract: An anti-adhesion composition with a good anti-adhesion property as well as a good biocompatibility, a surgical mesh composite with anti-adhesion property comprising the same and method for producing the same are provided.
    Type: Application
    Filed: December 14, 2012
    Publication date: February 12, 2015
    Inventors: Sun-Woo Kim, Jun-Bae Kim, Guw-Dong Yeo, Hye-Sung Yoon
  • Publication number: 20140336276
    Abstract: Disclosed are a biodegradable, biocompatible hydrogel that can be used for sealants of suppressing the leakage of blood or air during surgical operation, tissue adhesives, anti-adhesive agents and drug delivery carriers, and a method for producing the same
    Type: Application
    Filed: December 28, 2012
    Publication date: November 13, 2014
    Inventors: Young-Joo Koh, Hea-Kyung Kim, Sun-Woo Kim, Guw-Dong Yeo
  • Publication number: 20070219568
    Abstract: The present invention relates to a monofilament with a segmented pie structure formed by conjugated spinning of degradable polymers and non-degradable polymers, a hernia mesh having improved flexibility and biocompatibility, and a preparation method thereof. More specifically, the hernia mesh of the present invention having improved flexibility and biocompatibility is prepared using the monofilament obtained by conjugated spinning of degradable polymers and non-degradable polymers into a segmented pie form, to control it to be gradually degraded in the body, whereby the stiffness of the early stage is removed, and thereby the foreign body sensation is also removed.
    Type: Application
    Filed: December 22, 2005
    Publication date: September 20, 2007
    Applicant: SAMYANG CORPORATION
    Inventors: Guw-Dong Yeo, Jun-Bae Kim
  • Patent number: 5948020
    Abstract: An implantable bioresorbable membrane for the separation and regeneration of tissue in a defect site and augmentation of tissues surrounding other implants comprises: (a) porous bioresorbable polymer matrix made of a bioresorbable polymer selected from the group consisting of polylactic acid, poly(lactic-co-glycolic acid), polycarprolactone, polyparadioxanone, polytrimethylene carbonate and a mixture thereof; and (b) a reinforcing fabric made of bioresorbable fibers embedded in said matrix, and is produced by preparing a fabric as a support from bioresorbable fibrous materials, coating the fabric with a solution containing a bioresorbable polymer and a pore forming agent, and treating the coated fabric to generate pores.
    Type: Grant
    Filed: December 26, 1997
    Date of Patent: September 7, 1999
    Assignee: Sam Yang Co., Ltd.
    Inventors: Seok-Joon Yoon, Guw-Dong Yeo, You-Chan Kim, Min-Hyo Seo, Chaul-Min Pai, Jong-Pyoung Jung, Seung-Jin Lee