Inventor
LIU YUZHI
CN21 patents
⚠️ This page may combine multiple inventors who share the name “LIU YUZHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
LIANG CHENGYUAN
8 patentsUS10343988B1Jul 9, 2019
Hydroxytyrosol thiodipropionic acid ester with antioxidant activity and a method of preparing the same
LIANG CHENGYUAN2 citations71
US10487094B1Nov 26, 2019
Bergenin thiodipropionic acid ester with antioxidant activity and a method of improving the antioxidant property of ganoderma lucidum spore oil using the same
LIANG CHENGYUAN2 citations69
US10233183B1Mar 19, 2019
13-hydroxysparteine cinnamic acid derivatives with anti-tumor activities and a method of preparing the same
LIANG CHENGYUAN2 citations69
US10472321B1Nov 12, 2019
Hydroxytyrosol p-phenylenedicarboxylate having antioxidant activity and a method of preparing the same
LIANG CHENGYUAN1 citations58
US10377702B1Aug 13, 2019
Hydroxytyrosol isophorone diisocyannate derivative with antioxidant activity and a method of preparing the same
LIANG CHENGYUAN1 citations58
US10729675B2Aug 4, 2020
Gossypol isatin schiff base compounds with antitumor activities and a method of preparing the same
LIANG CHENGYUAN0 citations51
US10662201B2May 26, 2020
Alantolactone/isoalantolactone spiro aryl isoxazoline compounds
LIANG CHENGYUAN0 citations49
US10336682B1Jul 2, 2019
Hydroxytyrosol shikimic acid ester for treating cardiovascular deceases and a method of preparing the same
LIANG CHENGYUAN0 citations49
LI FEIYU
5 patentsUS9422699B2Aug 23, 2016
Toilet inlet valve and control method thereof
LI FEIYU2 citations60
US9062443B2Jun 23, 2015
Water intake structure for water-storing key float
LI FEIYU2 citations60
US9661962B2May 30, 2017
Quick assembly and disassembly device of a toilet cover and implementation method thereof
LI FEIYU1 citations50
US9556601B2Jan 31, 2017
Base connection device used to change a flapper drain valve to a barrel drain valve
LI FEIYU0 citations47
US9487938B2Nov 8, 2016
Automatic protection device for a toilet inlet valve or drain valve
LI FEIYU1 citations46
LI HAN
3 patentsUS10995053B1May 4, 2021
Hydroxytyrosol ursolic acid ester with antioxidant activity and methods of preparing the same
LI HAN0 citations61
US10487046B1Nov 26, 2019
Dihydroxytyrosol hexamethylene-1,6-dicarbamate having antioxidant activity and a method of preparing the same
LI HAN0 citations49
US10618911B2Apr 14, 2020
1-O-acetylbritannilatone spiro aryl isoxazoline compounds
LI HAN0 citations48