Inventor · disambiguated record
Ruey J. Yu
Also filed as: VAN SCOTT EUGENE J · YU RUEY J
160 granted patents·37 pending applications·6,925 citations·filing 1974–2024
99Inventor score
Top patents by PatentIndex Score
197 records- 0199US6767924B2Method of using hydroxycarboxylic acids or related compounds for treating skin changes associated with intrinsic and extrinsic agingTRISTRATA INC·Filed 2000·Granted Jul 27, 2004·131 cites·6 claims
- 0299US5091171AAmphoteric compositions and polymeric forms of alpha hydroxyacids, and their therapeutic useYU RUEY J·Filed 1989·Granted Feb 25, 1992·536 cites·20 claims
- 0399US4866304ABICMOS NAND gateMOTOROLA INC·Filed 1988·Granted Sep 12, 1989·265 cites·5 claims
- 0499US4363815AAlpha hydroxyacids, alpha ketoacids and their use in treating skin conditionsYU RUEY J·Filed 1980·Granted Dec 14, 1982·316 cites·12 claims
- 0598US4234599ATreatment of skin keratoses with α-hydroxy acids and related compoundsSCOTT EUGENE J VAN·Filed 1978·Granted Nov 18, 1980·261 cites·25 claims
- 0698US4197316ATreatment of dry skinSCOTT EUGENE J VAN·Filed 1978·Granted Apr 8, 1980·209 cites·15 claims
- 0798US4105783ATherapeutic treatment of dry skinYU RUEY J·Filed 1976·Granted Aug 8, 1978·246 cites·15 claims
- 0897US6159485AN-acetyl aldosamines, n-acetylamino acids and related n-acetyl compounds and their topical useYUGENIC LTD PARTNERSHIP·Filed 1999·Granted Dec 12, 2000·223 cites·20 claims
- 0997US5889054AMethod of using beta hydroxy acids for treating wrinklesTRISTRATA INC·Filed 1997·Granted Mar 30, 1999·124 cites·20 claims
- 1097US5886042AAmphoteric compostion and polymeric forms of alpha hydroxyacids, and their therapeutic useTRISTRATA INC·Filed 1997·Granted Mar 23, 1999·149 cites·15 claims
- 1197US5385938AMethod of using glycolic acid for treating wrinklesFiled 1992·Granted Jan 31, 1995·122 cites·15 claims
- 1297US4105782ATreatment of acne and dandruffYU RUEY J·Filed 1976·Granted Aug 8, 1978·159 cites·9 claims
- 1397US4021572AProphylactic and therapeutic treatment of acne vulgaris utilizing lactamides and quaternary ammonium lactatesSCOTT EUGENE J VAN·Filed 1975·Granted May 3, 1977·132 cites·28 claims
- 1496US7572776B2N-(phosphonoalkyl)-amino acids, derivatives thereof and compositions and methods of useYU RUEY J·Filed 2008·Granted Aug 11, 2009·30 cites·8 claims
- 1596US7429575B2N-(phosphonoalkyl)-amino acids, derivatives thereof and compositions and methods of useYU RUEY J·Filed 2007·Granted Sep 30, 2008·31 cites·10 claims
- 1696US6335023B1Oligosaccharide aldonic acids and their topical useFiled 2000·Granted Jan 1, 2002·101 cites·123 claims
- 1796US4380549ATopical treatment of dry skinSCOTT EUGENE J VAN·Filed 1981·Granted Apr 19, 1983·191 cites·12 claims
- 1896US4287214ADithranol compositions stabilized with alpha hydroxyacidsSCOTT EUGENE J VAN·Filed 1979·Granted Sep 1, 1981·118 cites·24 claims
- 1996US4246261AAdditives enhancing topical corticosteroid actionSCOTT EUGENE J VAN·Filed 1979·Granted Jan 20, 1981·154 cites·36 claims
- 2096US3988470ATreatment of palmar and plant disturbed keratosisSCOTT EUGENE J VAN·Filed 1975·Granted Oct 26, 1976·137 cites·10 claims
- 2196US3984566AMethod of alleviating the symptoms of dandruffSCOTT EUGENE J VAN·Filed 1975·Granted Oct 5, 1976·149 cites·5 claims
- 2295US7776844B2N-(phosphonoalkyl)-amino acids, derivatives thereof and compositions and methods of useYU RUEY J·Filed 2009·Granted Aug 17, 2010·27 cites·17 claims
- 2395US5665776AAdditives enhancing topical actions of therapeutic agentsTRISTRATA INC·Filed 1993·Granted Sep 9, 1997·135 cites·44 claims
- 2495US5389677AMethod of treating wrinkles using glycalic acidTRISTRATA INC·Filed 1993·Granted Feb 14, 1995·81 cites·10 claims
- 2595US4216224AMethods and compositions for treating psoriasis with retinoyl compoundsSCOTT EUGENE J VAN·Filed 1978·Granted Aug 5, 1980·36 cites·44 claims
- 2695US4053630ATreatment of body odor and disturbed keratinizationYU RUEY J·Filed 1976·Granted Oct 11, 1977·126 cites·11 claims
- 2794USRE41339EN-acetyl aldosamines, N-acetylamino acids and related N-acetyl compounds and their topical useTRISTRATA INC·Filed 2006·Granted May 18, 2010·19 cites·75 claims
- 2894US6524593B1N-acetyl aldosamines and related N-acetyl compounds, and their topical useFiled 2000·Granted Feb 25, 2003·41 cites·25 claims
- 2994US5422370AMethod of using 2-hydroxypropanoic acid (lactic acid) for the treatment of wrinklesTRISTRATA INC·Filed 1994·Granted Jun 6, 1995·74 cites·11 claims
- 3093US6824786B2Compositions comprising phenyl-glycine derivativesFiled 2002·Granted Nov 30, 2004·59 cites·87 claims
- 3193US6740327B2Oligosaccharide aldonic acids and their topical useFiled 2001·Granted May 25, 2004·48 cites·48 claims
- 3293US6051609AAdditives enhancing the effect of therapeutic agentsTRISTRATA INC·Filed 1998·Granted Apr 18, 2000·130 cites·69 claims
- 3393US5554654AMethod for enhancing the therapeutic effect of an anti-acne agentTRISTRATA INC·Filed 1995·Granted Sep 10, 1996·58 cites·26 claims
- 3493US5470880AMethod of using citric acid for the treatment of wrinklesTRISTRATA INC·Filed 1994·Granted Nov 28, 1995·58 cites·10 claims
- 3593US4518789APhenyl alpha-acyloxyacetamide derivatives and their therapeutic useYU RUEY J·Filed 1983·Granted May 21, 1985·106 cites·21 claims
- 3692US5719878AScannable storage cell and method of operationMOTOROLA INC·Filed 1995·Granted Feb 17, 1998·103 cites·27 claims
- 3792US5547988AAlleviating signs of dermatological aging with glycolic acid, lactic acid or citric acidTRISTRATA INC·Filed 1994·Granted Aug 20, 1996·99 cites·14 claims
- 3891US9067969B2N-acyldipeptide derivatives and their usesYU RUEY J·Filed 2012·Granted Jun 30, 2015·10 cites·3 claims
- 3990US5621006AMethod for treating acne using benzilic acidFiled 1995·Granted Apr 15, 1997·45 cites·38 claims
- 4089USRE41278EN-acetyl aldosamines and related N-acetyl compounds, and their topical useYU RUEY J·Filed 2006·Granted Apr 27, 2010·8 cites·56 claims
- 4189US4284630AStabilized water-in-oil emulsionsYU RUEY J·Filed 1979·Granted Aug 18, 1981·59 cites·34 claims
- 4287US5561157AMethod for enhancing the therapeutic effect of a composition comprising hydroquinone and comprising sameTRISTRATA INC·Filed 1995·Granted Oct 1, 1996·35 cites·32 claims
- 4387US4021538AMethod for producing pigmentation in hair or skinYU RUEY J·Filed 1975·Granted May 3, 1977·51 cites·26 claims
- 4485US9370546B2N-acyldipeptide derivatives and their usesYU RUEY J·Filed 2015·Granted Jun 21, 2016·3 cites·5 claims
- 4584US5641475AAntiodor, antimicrobial and preservative compositions and methods of using sameTRISTRATA INC·Filed 1994·Granted Jun 24, 1997·33 cites·4 claims
- 4684US5093360ARetinal, derivatives and their therapeutic useYU RUEY J·Filed 1989·Granted Mar 3, 1992·50 cites·9 claims
- 4784US4300060ASignal programmable multiple function flip-flopGEN MOTORS CORP·Filed 1979·Granted Nov 10, 1981·20 cites·2 claims
- 4883US11813237B2Creatine, its derivatives, compositions and methods of use thereofYU RUEY J·Filed 2023·Granted Nov 14, 2023·0 cites·11 claims
- 4983US7452545B2Oligosaccharide aldonic acids and their topical useYU RUEY J·Filed 2004·Granted Nov 18, 2008·10 cites·18 claims
- 5083US4312770AThick film resistor paste and resistors therefromGEN MOTORS CORP·Filed 1979·Granted Jan 26, 1982·24 cites·6 claims
Showing the top 50 of 197 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →