St. Augustine, Florida
United States
19
2022-10-06
The entities that hold a legal rights for patent applications filed by inventor Li Yongcheng:
Yongcheng Li from St. Augustine, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Pupil-only photochromic contact lenses displaying desirable optics and comfort
#2 | 2021-01-21Pupil-only photochromic contact lenses displaying desirable optics and comfort
#3 | 2019-08-15Pupil-only photochromic contact lenses displaying desirable optics and comfort
#4 | 2018-05-17Pupil-only photochromic contact lenses displaying desirable optics and comfort
#5 | 2018-05-03ANTIMICROBIAL POLYMERIC ARTICLES, PROCESSES TO PREPARE THEM AND METHODS OF THEIR USE
#6 | 2018-04-19METHODS FOR FORMING STABILIZED METAL SALT PARTICLES
#7 | 2017-03-16Methods for forming stabilized metal salt particles
#8 | 2014-10-02Ionic silicone hydrogels having improved hydrolytic stability
#9 | 2014-04-10Pupil-only photochromic contact lenses displaying desirable optics and comfort
#10 | 2014-01-09ANTIMICROBIAL POLYMERIC ARTICLES, PROCESSES TO PREPARE THEM AND METHODS OF THEIR USE
#11 | 2013-10-03Ionic silicone hydrogels having improved hydrolytic stability
#12 | 2013-05-02PREPARATION OF ANTIMICROBIAL CONTACT LENSES WITH REDUCED HAZE USING SWELLING AGENTS
#13 | 2013-04-04METHOD OF CREATING A VISIBLE MARK ON LENS USING A LEUCO DYE
#14 | 2013-04-04METHOD OF CREATING A VISIBLE MARK ON LENS USING A LEUCO DYE
#15 | 2011-10-13Pupil-only photochromic contact lenses displaying desirable optics and comfort
#16 | 2011-05-12Preparation of antimicrobial contact lenses with reduced haze using swelling agents
#17 | 2010-09-30Ionic silicone hydrogels having improved hydrolytic stability
#18 | 2009-02-26PREPARATION OF ANTIMICROBIAL CONTACT LENSES WITH REDUCED HAZE USING SWELLING AGENTS
#19 | 2008-05-01ANTIMICROBIAL POLYMERIC ARTICLES, PROCESSES TO PREPARE THEM AND METHODS OF THEIR USE
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