RY

Ruey J. Yu

TT Tristrata Technology: 33 patents #1 of 2Top 50%
TR Tristrata: 3 patents #1 of 2Top 50%
📍 Doylestown, PA: #1 of 77 inventorsTop 2%
🗺 Pennsylvania: #1 of 4,367 inventorsTop 1%
Overall (1997): #6 of 185,788Top 1%
38
Patents 1997

Issued Patents 1997

Showing 1–25 of 38 patents

Patent #TitleCo-InventorsDate
5702688 Amphoteric compositions and polymeric forms of alpha hydroxyacids, and their therapeutic use Eugene J. Van Scott 1997-12-30
5691378 Method for treating wrinkles using combinations of alpha hydroxyacids and/or alpha ketoacids Eugene J. Van Scott 1997-11-25
5690967 Compositions for improved topical delivery of lactic acid Eugene J. Van Scott 1997-11-25
5686489 Alpha hydroxyacid esters for skin aging Eugene J. Van Scott 1997-11-11
5684044 Methods for improved topical delivery of lactic acid Eugene J. Van Scott 1997-11-04
5681853 Methods for improved topical delivery of alpha hydroxyacids Eugene J. Van Scott 1997-10-28
5677340 Method of using gluconic acid or gluconolactone for treating wrinkles Eugene J. Van Scott 1997-10-14
5677339 Method of using mandelic acid for treating wrinkles Eugene J. Van Scott 1997-10-14
5674903 Method of using citric acid for treating wrinkles Eugene J. Van Scott 1997-10-07
5674899 Method of using lactic acid for treating wrinkles Eugene J. Van Scott 1997-10-07
5670542 Method of using glucuronic acid or glucronolactone for treating wrinkles Eugene J. Van Scott 1997-09-23
5670543 Method of using pantoic acid or pantolactone for treating wrinkles Eugene J. Van Scott 1997-09-23
5670541 Method of treating wrinkles using gulonic acid or gulonolactone Eugene J. Van Scott 1997-09-23
5668177 Method of treating wrinkles using tartaric acid Eugene J. Van Scott 1997-09-16
5665776 Additives enhancing topical actions of therapeutic agents Eugene J. Van Scott 1997-09-09
5656666 Method of using ribonic acid or ribonolactone for treating wrinkles Eugene J. Van Scott 1997-08-12
5656665 Method of using quinic acid or quinolactone for treating wrinkles Eugene J. Van Scott 1997-08-12
5654336 Methods of using glycolic acid for reversing or retarding the effect of aging on human facial skin Eugene J. Van Scott 1997-08-05
5654340 Method of using gulonic acid or gulonolactone for treating wrinkles Eugene J. Van Scott 1997-08-05
5652267 Method of using saccharic acid or saccharolactone for treating wrinkles Eugene J. Van Scott 1997-07-29
5650440 Method of using citramalic acid for treating wrinkles Eugene J. Van Scott 1997-07-22
5650437 Method of using benzilic acid for treating wrinkles Eugene J. Van Scott 1997-07-22
5650436 Method of using galactonic acid or galactonolactone for treating wrinkles Eugene J. Van Scott 1997-07-22
5648391 Method of using galacturonic acid or galacturonolactone for treating wrinkles Eugene J. Van Scott 1997-07-15
5648395 Method of using tartaric acid for treating wrinkles Eugene J. Van Scott 1997-07-15