37. Oh Young Bang, Dong Hee Kim, Gyeong Joon Moon, Hyeon Ho Kim, Doo Sung Lee, Young Kyu Seo, "Composition comprising dual ionic pH-sensitive copolymer for delivering sdf-1 topically to the brain and use thereof", US Patent Application, 16/057,695(2018.7.8.) 

36. Doo Sung Lee, Li Yi, Bong Sup Kim, "Polypeptide Based Block Copolymer and the Process for the Preparation Thereof, and the Polymer Micelles Using the Same", US Patent Application No. 14/876211(201510.06), US Patent Registration No. 9180199(2018.09.04)

35. Young Yih Han, Hee Chul Park, Doo Sung Lee, Jae Myung Noh, Sang Hee Ahn, Hye Young kim, Moon Soo Gil, "Biocompatible fiducial marker using multi-block copolymers", US Patent Application No. 14/919095(201510.21), US Patent Registration No. 9180199(2017.05.30)

34. Doo Sung Lee, Kiattikhun Manokruang, Bong Sup Kim, "Albumin conjugated temperature and pH-sensitive multi-block copolymer, a method of preparation thereof and drug delivery system using the same" US Patent Application No. 14/574720(201412.18), US Patent Registration No. 9782486(2017.10.10)

33. Doo Sung Lee, Li Yi, Bong Sup Kim, "Polypeptide Based Block Copolymer and the Process for the Preparation Thereof, and the Polymer Micelles Using the Same", US Patent Application No. 14/022356(2013.09.10), US Patent Registration No. 9180199(2015.11.10)

32. Doo Sung Lee, Cong Truc Huynh, Bong Sup Kim, "pH-sensitive polymer hydrogel with dual ionic transition and use thereof ", US Patent Application No. 13/761,419(2013.02.07), US Patent Registration No. 8916615(2014.12.23)

31. Doo Sung Lee, Cong Truc Huynh, Bong Sup Kim, "Drug delivery system for treatment of liver cancer based on interventional injection of temperature and pH-sensitive hydrogel", US Patent Application No. 13/551,889 (2012.07.18), US Patent Publication No. 20130022545 A1 (2013.01.24.)

30. Doo Sung Lee, Minh Khanh Nguyen, Bong Sup Kim, "Poly(amidoamine) oligomer hydrogel for drug carrier using the same", EP Patent Application No. 20100189832(2010.11.03), EP Patent Publication No. 2363151 (2011.09.07)

29. Doo Sung Lee, Minh Khanh Nguyen, Bong Sup Kim, "Poly(amidoamine) oligomer hydrogel for drug carrier using the same", JP Patent Application No. 2010-246854(2010.11.02), JP Patent Registration No. 5505261 (2014.02.18)

28. Doo Sung Lee, Minh Khanh Nguyen, Bong Sup Kim, "Poly(amidoamine) oligomer hydrogel for drug carrier using the same", US Patent Application No. 12/938352(2010.11.03), US Patent Registration No. 8383153(2013.02.26)

27. Doo Sung Lee, Guanghui Gao, Jung Hee Lee, Bong Sup Kim, "pH-sensitive block copolymer forming polyionic complex micelles and drug or protein carrier using the same", EP Patent Application No. 20100170584(2010.07.23), EP Patent Registration No. 2340811(2014.10.15)

26. Doo Sung Lee, Guanghui Gao, Jung Hee Lee, Bong Sup Kim, "pH-sensitive block copolymer forming polyionic complex micelles and drug or protein carrier using the same", US Patent Application No. 12/842388(2010.07.23), US Patent Registration No. 8911775(2014.12.16.)

25. Doo Sung Lee, Guanghui Gao, Jung Hee Lee, Bong Sup Kim, "pH-sensitive block copolymer forming polyionic complex micelles and drug or protein carrier using the same", PCT Patent Application No. PCT/KR2010/004819(2010.07.22), PCT Publication No. WO 2011078457 (2011.06.30)

24. Doo Sung Lee, Min Sang Kim, Bong Sup Kim, pH-sensitive graft copolymer, method of producing and polymer micelle thereof", US Patent Application No. 13/263,452(2011.10.11), US Patent Registration No. 9080049(2015.07.14)

23. Doo Sung Lee, Min Sang Kim, Bong Sup Kim, pH-sensitive graft copolymer, method of producing and polymer micelle thereof", PCT Patent Application No. PCT/KR2010/002223(2010.04.09.), PCT Publication No. WO 2010117248 (2010.10.14)

22. Ick Chan Kwon, Doo Sung Lee, Kwangmeyung Kim, Bong Sup Kim, KyeongSoon, Park, Min Sang Kim, Jong Kwon Han, Jin Young Ko, "Preparation of drug delivery systems using pH-sensitive block copolymer and their application", PCT Patent Application No. PCT/KR2007/0039524(2007.4.23), PCT Publication No. WO 2008/130180 A1 (2008.10.30)

21. Doo Sung Lee, Minh Khanh Nguyen, Bong Sup Kim, "Temperature and pH-sensitive block copolymer having excellent safety in vivo and hydrogel and drug delivery system using thereof", US Patent Application No. PCT/KR2008/005270(2008.09.05), US Patent Registration No. 9469728 B2(2016.10.18)

19. Doo Sung Lee, Kasala Dayananda, Bong Sup Kim, "Temperature and pH-sensitive block copolymer having excellent gel strength, method of preparing the same, and drug delivery system using the same", DE Patent Application No. 08102912.6 (2008.3.26.)

18. Doo Sung Lee, Kasala Dayananda, Bong Sup Kim, "Temperature and pH-sensitive block copolymer having excellent gel strength, method of preparing the same, and drug delivery system using the same", EP Patent Application No. EP 08102912.6 (2008.3.26), EP Patent Registration No. 1988108(2014.09.10.)

17. Doo Sung Lee, Kasala Dayananda, Bong Sup Kim, "Temperature and pH-sensitive block copolymer having excellent gel strength, method of preparing the same, and drug delivery system using the same", JP Patent Application No. 2008-096832(2008.04.03), JP Patent Registration No. 5257885(2013.05.02)

16. Doo Sung Lee, Kasala Dayananda, Bong Sup Kim, "Temperature and pH-sensitive block copolymer having excellent gel strength, method of preparing the same, and drug delivery system using the same", US Patent Application No. 12/061322(2008.04.02), US Patent Registration No. 3586097 B2(2013.11.19)

15. Doo Sung Lee, Min Sang Kim, Soo Jong Hwang, Jong Kweon Han, Bong Sup Kim, "pH-sensitive block copolymer and polymeric micelle using the same" , JP Patent Application No. 2007-0542928(2007.5.23), JP Patent Registration No. 4824032(2011.09.16)

14. Doo Sung Lee, Min Sang Kim, Soo Jong Hwang, Jong Kweon Han, Bong Sup Kim, "pH-sensitive block copolymer and polymeric micelle using the same", German Patent Application No. 11 2005 003 334.1 (2005.12.27), German Patent Publication No. DE 112005003334 (2007.10.31.)

13. Doo Sung Lee, Min Sang Kim, "pH-sensitive block copolymer and polymeric micelle using the same", US Patent Application No. 11/573858(2005.12.27), US Patent Registration No. 8313204(2012.11.27)

12. Doo Sung Lee, Min Sang Kim, Su Jong Hwang, Jong Kwon Han, Bong Sup Kim, "pH sensitive block copolymer and polymeric micelle using the same", PCT Application No. PCT/KR2005/004566(2005.12.27), PCT Publication No. WO 2006/098547 A1 (2006.9.21)

11. Doo Sung Lee, Je Sun Yoo, Hyunh dai Phu, Bong Sup Kim, Min Sang Kim, Nguyen Minh Khanh, "Temperature and pH-sensitive block copolymer and polymeric hydrogel using the same", JP Patent Application No. 2007-0503960(2007.09.29), JP Patent Registration No. 4753992 (2011.06.03)

10. Doo Sung Lee, Je Sun Yoo, Hyunh dai Phu, Bong Sup Kim, Min Sang Kim, Nguyen Minh Khanh, "Temperature and pH-sensitive block copolymer and polymeric hydrogel using the same", DE Patent Application No. 11 2006000685.1(2006.03.31)

9. Doo Sung Lee, Je Sun Yoo, Hyunh dai Phu, Bong Sup Kim, Min Sang Kim, Nguyen Minh Khanh, "Temperature and pH-sensitive Block copolymer and polymeric hydrogel using the same", US Patent Application No. 11/815960(2007.08.09), US Patent Registeration No. 8835492(2014.09.16)

8. Doo Sung Lee, Je Sun Yoo, Hyunh dai Phu, Bong Sup Kim, Min Sang Kim, Nguyen Minh Khanh, "Temperature and pH-sensitive block copolymer and polymeric hydrogel using the same", PCT Application No. PCT/KR2006/001185(2006.03.31), PCT Publication No. WO 2006/109945 A1 (2006.10.19)

7. Doo Sung Lee, Woo Sun Shim, You Han Bae, Je Sun Yoo, Min Sang Kim, Huynhdai Phu, "pH and temperature-sensitive hydrogels", CN Patent Application No. 2005800106011.X (2006.09.29), CN Patent Registration No. 200580010601.X (2011.06.29)

6. Doo Sung Lee, Woo Sun Shim, You Han Bae, Je Sun Yoo, Min Sang Kim, Huynhdai Phu, "pH and temperature-sensitive hydrogels", JP Patent Application No. 2007-0058882 (2007.03.08), JP Patent Registration No. 5052919 (2012.08.03)

5. Doo Sung Lee, Woo Sun Shim, You Han Bae, Je Sun Yoo, Min Sang Kim, Huynhdai Phu, "pH and temperature-sensitive hydrogels", EP Patent Application No. 105 710 824.3 (2006.08.29), EP Patent Registration No. 1720932B (2013.01.23)

4. Doo Sung Lee, Woo Sun Shim, You Han Bae, Je Sun Yoo, Min Sang Kim, Huynhdai Phu, "pH and temperature-sensitive hydrogels", US Patent Application No. 10/590959 (2006.08.29), US Patent Registration No. 7,786,220 (2010.08.31)

3. Doo Sung Lee, Woo Sun Shim, You Han Bae, Je Sun Yoo, Min Sang Kim, Huynhdai Phu, "pH and temperature-sensitive hydrogels", PCT Application No. PCT/KR2005/000207 (2005.1.26), PCT Publication No. WO 2005/073281 A1 (2005.8.11)

2. Byeongmoon Jeong, You Han Bae, Doo Sung Lee and Sung Wan Kim, “Injectable biodegradable block copolymer gels for use in drug delivery", EP Patent Application No. EP 1998940801(1998.8.8), EP Patent Publication No. EP 1024790 (2000.8.9.)

1. Byeongmoon Jeong, You Han Bae, Doo Sung Lee and Sung Wan Kim, "Injectable biodegradable block copolymer gels for use in drug delivery", PCT Application No. PCT/US98/16418 (1997.8.8), PCT Publication No. WO 99/07343 (1999.2.18)