Table 3. Patents separated by clusters after examination of abstract documents obtained in Espacenet database, between the years of 2008 - 2018 with interested keywords.

Cluster	Patent Number
Cluster 1 Cosmetic	TWI325325 (B) JP2008297241 (A) JP2008255020 (A) JP2008247814 (A) KR100912462 (B1) KR100858628 (B1) TW200914063 (A) KR101036961 (B1) CN101474153 (A) KR100958094 (B1) CN101411678 (B) CN101401775 (B) CN101874762 (B) US8568749 (B2) KR20100092922 (A) KR101023041 (B1) CN101664372 (B) CN202060058 (U) CN102091013 (B) CN102784084 (B) CN102579289 (A) CN102552073 (A) KR101193606 (B1) KR101337454 (B1)	CN103142448 (A) CN103110534 (B) CN102988257 (B) CN102988200 (B) CN104116651 (A) CN103966685 (B) CN103565743 (B) CN103520007 (A) MX2014006945 (A) TWI593426 (B) CN105055186 (A) KR101536996 (B1) CN104644459 (A) CN104606078 (A) CN104398395 (A) KR101702482 (B1) CZ306274 (B6) KR20160106508 (A) CN105755817 (A) MX2014009967 (A) MX2014008660 (A) CN105496886 (B) CN105473200 (A) CN105231999 (B)	CN107281045 (A) CN206401924 (U) CN106860188 (A) KR101719811 (B1) WO2017048807 (A1) CN106474373 (A) KR20180133237 (A) CN108938546 (A) KR101956553 (B1) CN108524411 (A) CN108379204 (A) KR20180079673 (A) CN108272670 (A) KR20180067901 (A) KR101865841 (B1) KR20180047152 (A) KR101850421 (B1) KR101860555 (B1) CN107898699 (A) CN207044803 (U) CN206999797 (U) CN107595715 (A) CN107582496 (A)
Cluster 2 Pharmaceutical	CN101200816 (B) CA2723307 (C) CA2746566 (A1) WO2010039310 (A1) CN102090904 (B) RU2554219 (C2) KR101437563 (B1) CN104055720 (A)	CN103948960 (B) KR101419602 (B1) CN104987485 (A) RU2559938 (C2) CN204092654 (U) CN105853335 (A) CN107412882 (A) CN106691888 (A)	CN206217260 (U) CN106492278 (A) CN106427100 (A) CN108998856 (A) CN108842222 (A) CN207535410 (U) CN107753747 (A)