Table 2. Patents with the same technologies found during the search in Espacenet with the keywords “skin” in the title and “promot* or enhanc* and penetrat* or absorp* or permeat* and nano*” in the abstract. Data from patents between 2008 and 2018.

Name of Technology	Patents Considered in Data Analysis	Patents not Considered Because are Repeated from the Same Technology	Applicant / Country
Nanoliposome using esterified lecithin and method for preparing the same, and composition for preventing or treating skin diseases comprising the same	TWI325325 (B)	US2009263473 (A1); US8685440 (B2)	DAEWOONG CO LTD [KR]
Systems and methods for skin rejuvenation	US8568749 (B2)	US2013345307 (A1); US9241887 (B2) US2016101029 (A1); US9782334 (B2)	SESVALIA USA LLC [US]
Multilamellar nanoliposome which contains skin lipid components, and preparation method therefor	KR20160106508 (A)	CN107405282 (A)	AMOREPACIFIC CORP [CN]
Approaches for improving skin hydration or moisturization	WO2017048807 (A1)	US2018256482 (A1)	JRX BIOTECHNOLOGY INC [US]
Topical herbal formulation for treatment of acne and skin disorders	CA2746566 (A1)	SG172455 (A1)	SUNEV PHARMA SOLUTION LTD [IN]