Inventor · Seoul, KR

Gwan Sun Lee

67Patents
11h-index
125Co-inventors
81Inventor score

Filing activity: May 18, 1998 → Mar 12, 2019

Most-cited inventions

PatentTitleAreaCited byStatus
US7736653B2 Pharmaceutical composition comprising an immunoglobulin Fc region as a carrier Chemistry; Metallurgy 68 Expired
US8124094B2 Immunoglobulin Fc fragment modified by non-peptide polymer and pharmaceutical composition comprising the same Chemistry; Metallurgy 60 Active
US7737260B2 Protein complex using an immunoglobulin fragment and method for the preparation thereof Chemistry; Metallurgy 48 Expired
US6515116B2 Method of preparing form II crystals of clarithromycin Emerging Cross-Sectional Technologies 35 Expired
US8263084B2 Pharmaceutical composition for treating obesity-related disease comprising insulinotropic peptide conjugate Chemistry; Metallurgy 31 Active
US6605697B1 Modified E. coli enterotoxin II signal peptide and a microorganism expressing a fusion protein of a said peptide and a heterologous protein Emerging Cross-Sectional Technologies 27 Expired
US8110665B2 Pharmaceutical composition comprising an immunoglobulin FC region as a carrier Chemistry; Metallurgy 25 Active
US8029789B2 Method for the mass production of immunoglobulin constant region Chemistry; Metallurgy 23 Expired
US6506886B1 Method of preparing form II crystals of clarithromycin Chemistry; Metallurgy 19 Expired
US6809188B1 Method of preparing clarithromycin Human Necessities 18 Expired
US6444796B1 Method of preparing form II crystals of clarithromycin Human Necessities 17 Expired
US8476230B2 Insulinotropic complex using an immunoglobulin fragment Human Necessities 11 Active
US7470707B2 Crystalline monohydrate clopidogrel naphthalenedisulfonate and process of preparation Human Necessities 10 Expired
US8163889B2 Physiologically active polypeptide conjugate having prolonged in vivo half-life Human Necessities 8 Active
US9422349B2 N-terminal modified exendin-4 Chemistry; Metallurgy 6 Active
US8188102B2 Amide derivative for inhibiting the growth of cancer cells Chemistry; Metallurgy 6 Active
US7202360B2 Method for preparing risperidone Chemistry; Metallurgy 6 Expired
US9636420B2 Polypeptide complex comprising non-peptidyl polymer having three functional ends Chemistry; Metallurgy 6 Active
US7718399B2 Expression vector for secreting antibody fragment using E. coli signal sequence and method for mass-producing antibody fragment Chemistry; Metallurgy 5 Active
US8003658B2 Quinazoline derivatives for inhibiting cancer cell growth and method for the preparation thereof Chemistry; Metallurgy 5 Active
US8097706B2 Methods for preparing capecitabine and beta-anomer-rich trialkyl carbonate compound used therein Emerging Cross-Sectional Technologies 5 Active
US6093814A Process for preparation of cefdinir Human Necessities 5 Expired
US6388091B1 Process for the preparation of 1,2,3,9-tetrahydro-9-methyl-3-{(2-methyl-1H-imidazol-1-yl)methyl}-4H-carbazol-4-one Chemistry; Metallurgy 4 Expired
US7157576B2 Crystalline acid salts of cefdinir and process for preparing cefdinir using same Chemistry; Metallurgy 3 Expired
US6130336A Process for preparing paclitaxel Emerging Cross-Sectional Technologies 3 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.