Patents by Inventor Hyun-Kwang Tan

Hyun-Kwang Tan 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).

  • Patent number: 8003850
    Abstract: Provided is a method for producing a target protein via cultivation of transgenic plant cells comprising a promoter capable of expressing the protein under sugar-free conditions in the response to the depletion of sugar and a gene encoding the target protein, without exchange of a cell growth medium with a sugar-depleted medium comprising the addition of an amino acid mixture to the sugar-rich medium used to grow the plant cells.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: August 23, 2011
    Assignee: Boryung Pharmaceutical Co., Ltd.
    Inventors: Sang-Lin Kim, Hyun-Kwang Tan, Sang-Min Lim, Wuk-Sang Ryu, Hahn-Sun Jung, Song-Jae Lee, Cheon-Ik Park, Seung-Hoon Kang, Dong-Il Kim
  • Publication number: 20100189717
    Abstract: The present invention provides a recombinant vector pBI-3D-hGalT or pBI-35S-hGalT containing a human ?1,4-galactosyltransferase gene; a cell line transformed with a recombinant vector pMYN414 containing a cytotoxic T-lymphocyte anti-gen A-immunoglobulin (CTLA4Ig) fusion protein gene and the recombinant vector pBI-3D-hGalT or pBI-355-hGalT; and a method for producing a plant-derived recombinant human CTLA4Ig (CTLA4Igp) fusion protein with a human glycan structure using the same. The plant cell-derived recombinant human CTLA4Ig fusion protein (CTLA4Igp), which has a human glycan structure and is produced according to the present invention, exhibits an improved in vivo half life as compared to conventional plant-derived proteins, due to the presence of a human-like glycan structure.
    Type: Application
    Filed: July 9, 2008
    Publication date: July 29, 2010
    Applicant: Boryung Pharmaceutical Co., Ltd.
    Inventors: Sang-Lin Kim, Hyun-Kwang Tan, Sang-Min Lim, Wuk-Sang Ryu, Hahn-Sun Jung, Song-Jae Lee, Cheon-Ik Park, Seung-Hoon Kang, Dong Il Kim
  • Publication number: 20090181428
    Abstract: Provided is a method for producing a target protein via cultivation of transgenic plant cells comprising a promoter capable of expressing the protein under sugar-free conditions or in response to the depletion of sugar and a gene encoding the target protein, without exchange of a cell growth medium with a sugar-depleted medium. The method comprises 1) culturing transgenic plant cells in a sugar-rich medium to grow plant cells; and 2) culturing the transgenic plant cells with addition of an amino acid mixture to the culture of Step 1 without exchange of a cell growth medium with a sugar-depleted medium, thereby expressing a target protein.
    Type: Application
    Filed: September 19, 2007
    Publication date: July 16, 2009
    Applicant: BORYUNG PHARMACEUTICAL CO., LTD.
    Inventors: Sang-Lin Kim, Hyun-Kwang Tan, Sang-Min Lim, Wuk-Sang Ryu, Hahn-Sun Jung, Song-Jae Lee, Cheon-Ik Park, Seung-Hoon Kang, Dong-Il Kim
  • Patent number: 7485656
    Abstract: An antibacterial composition for external application, particularly, a remedial formulation for external use containing fluconazole is disclosed. The formulation comprises a base material, 0.1-5.0 percent by weight of fluconazole and 1.0-40.0 percent by weight of any one compound selected from a group consisting of fatty acid, fatty alcohol, higher fatty acid ester and lower alcohol based on weight of the base material. The composition according to the present invention has various advantages of a favorable absorption into a system through the skin of a human body and delivery of active material into horny layer of the skin, a reduced skin stimulation and an excellent stability. Therefore, the composition is efficiently useable in a medical treatment application for dermatomycosis-related infectious diseases including tinea pedis, tinea corporis, tinea cruris, tinea versicolor and/or candidiasis and the like.
    Type: Grant
    Filed: February 7, 2002
    Date of Patent: February 3, 2009
    Assignee: Boryung Pharmaceutical Co., Ltd.
    Inventors: Sang-Lin Kim, Hyun-Kwang Tan, Jun-Sik Kim, Ho-Beom Lee, Geun-Hong Min, Hae-Won Ryou
  • Patent number: 7309788
    Abstract: A process for preparing pyrimidinone compound and salts thereof The method of the present invention enables the convenience to produce the pyrimidinone derivatives in high yields, which pyrimidinone compounds are useful for treating cardiovascular diseases caused by binding angiotensin II to its receptors, through antagonistic activity against angiotensin II receptors.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: December 18, 2007
    Assignee: Boryung Pharmaceutical Co., Ltd.
    Inventors: Sang-Lin Kim, Ji-Han Kim, Jung-Bok Lee, Byoung-Wug Yoo, Hyun-Kwang Tan
  • Publication number: 20040266800
    Abstract: A process for preparing pyrimidinone compound and salts thereof The method of the present invention enables the convenience to produce the pyrimidinone derivatives in high yields, which pyrimidinone compounds are useful for treating cardiovascular diseases caused by binding angiotensin II to its receptors, through antagonistic activity against angiotensin II receptors.
    Type: Application
    Filed: August 25, 2004
    Publication date: December 30, 2004
    Inventors: Sang-Lin Kim, Ji-Han Kim, Jung-Bok Lee, Byoung-Wug Yoo, Hyun-Kwang Tan
  • Publication number: 20040122071
    Abstract: An antibacterial composition for external application, particularly, a remedial formulation for external use containing fluconazole is disclosed. The formulation comprises a base material, 0.1-5.0 percent by weight of fluconazole and 1.0-40.0 percent by weight of any one compound selected from a group consisting of fatty acid, fatty alcohol, higher fatty acid ester and lower alcohol based on weight of the base material. The composition according to the present invention has various advantages of a favorable absorption into a system through the skin of a human body and delivery of active material into horny layer of the skin, a reduced skin stimulation and an excellent stability. Therefore, the composition is efficiently useable in a medical treatment application for dermatomycosis-related infectious diseases including tinea pedis, tinea corporis, tinea cruris, tinea versicolor and/or candidiasis and the like.
    Type: Application
    Filed: January 16, 2004
    Publication date: June 24, 2004
    Inventors: Sang-Lin Kim, Hyun-Kwang Tan, Jun-Sik Kim, Ho-Beom Lee, Geun-Hong Min, Hae-Won Ryou
  • Patent number: 5527832
    Abstract: Transdermal gels comprising (1) ketoprofen as an effective component, (2) poloxamer, (3) one or more agents selected from ethyl alcohol, isopropyl alcohol, propylene glycol, polyethylene glycol and glycerin, (4) one or more agents selected from the group consisting of lauric acid, oleic acid, capric acid, myristic acid, lauryl alcohol, oleyl alcohol and menthol, (5) water or a buffer solution. The gels form thin and pliable films, which are easily washable with water. They possess prolonged antiinflammatory and analgesic activities and physicochemical stability with less systemic side effects and gastric irritation.
    Type: Grant
    Filed: March 9, 1994
    Date of Patent: June 18, 1996
    Assignee: Il-Dong Pharm. Co., Ltd.
    Inventors: Sang-Cheol Chi, Hyun-Kwang Tan, Heung-Won Chun