Inventor · disambiguated record
Yunik Chang
Also filed as: CHANG YUNIK
26 granted patents·5 pending applications·1,393 citations·filing 1987–2022
97Inventor score
Files withDOW PHARMACEUTICAL SCIENCES15CHANG YUNIK6THERATECH INC4MEDIGENE AG2BAUSCH HEALTH IRELAND LTD1
Top patents by PatentIndex Score
31 records- 0198US4863970APenetration enhancement with binary system of oleic acid, oleins, and oleyl alcohol with lower alcoholsTHERATECH INC·Filed 1988·Granted Sep 5, 1989·410 cites·40 claims
- 0297US6468989B1Gel compositions containing metronidazoleDOW PHARMACEUTICAL SCIENCES·Filed 2000·Granted Oct 22, 2002·177 cites·28 claims
- 0395US10624918B2Topical pharmaceutical formulations containing a low concentration of benzoyl peroxide in suspension in water and a water-miscible organic solventDOW PHARMACEUTICAL SCIENCES·Filed 2018·Granted Apr 21, 2020·4 cites·10 claims
- 0495US4849224ADevice for administering an active agent to the skin or mucosaTHERATECH INC·Filed 1987·Granted Jul 18, 1989·183 cites·7 claims
- 0594US9693988B2Topical pharmaceutical formulations containing a low concentration of benzoyl peroxide in suspension in water and a water-miscible organic solventCHANG YUNIK·Filed 2012·Granted Jul 4, 2017·15 cites·12 claims
- 0694US9561208B2Topical pharmaceutical formulations containing a low concentration of benzoyl peroxide in suspension in water and a water-miscible organic solventDOW PHARMACEUTICAL SCIENCES·Filed 2016·Granted Feb 7, 2017·8 cites·18 claims
- 0794US4983395ADevice for administering an active agent to the skin or mucosaTHERATECH INC·Filed 1989·Granted Jan 8, 1991·162 cites·6 claims
- 0893US9078870B2Topical pharmaceutical formulations containing a low concentration of benzoyl peroxide in suspension in water and a water-miscible organic solventDOW PHARMACEUTICAL SCIENCES·Filed 2013·Granted Jul 14, 2015·10 cites·7 claims
- 0993US8288434B2Topical pharmaceutical formulations containing a low concentration of benzoyl peroxide in suspension in water and a water-miscible organic solventCHANG YUNIK·Filed 2009·Granted Oct 16, 2012·15 cites·60 claims
- 1093US7348317B2Aqueous compositions containing metronidazoleDOW PHARMACEUTICAL SCIENCES·Filed 2005·Granted Mar 25, 2008·17 cites·52 claims
- 1193US4888354ASkin penetration enhancement using free base and acid addition salt combinations of active agentsTHERATECH INC·Filed 1987·Granted Dec 19, 1989·148 cites·22 claims
- 1292US8715700B2Alpha hydroxy acid sustained release formulationCHANG YUNIK·Filed 2006·Granted May 6, 2014·16 cites·38 claims
- 1392US8663699B2Topical pharmaceutical formulations containing a low concentration of benzoyl peroxide in suspension in water and a water-miscible organic solventDOW PHARMACEUTICAL SCIENCES·Filed 2013·Granted Mar 4, 2014·9 cites·3 claims
- 1492US4956171ATransdermal drug delivery using a dual permeation enhancer and method of performing the samePACO PHARMACEUTICAL SERVICES I·Filed 1989·Granted Sep 11, 1990·159 cites·13 claims
- 1591US8895070B2Topical pharmaceutical formulations containing a low concentration of benzoyl peroxide in suspension in water and a water-miscible organic solventDOW PHARMACEUTICAL SCIENCES·Filed 2013·Granted Nov 25, 2014·8 cites·8 claims
- 1691US6881726B2Aqueous compositions containing metronidazoleDOW PHARMACEUTICAL SCIENCES·Filed 2001·Granted Apr 19, 2005·31 cites·50 claims
- 1790US10220049B2Topical pharmaceutical formulations containing a low concentration of benzoyl peroxide in suspension in water and a water-miscible organic solventDOW PHARMACEUTICAL SCIENCES·Filed 2017·Granted Mar 5, 2019·4 cites·16 claims
- 1888US9504704B2Topical pharmaceutical formulations containing a low concentration of benzoyl peroxide in suspension in water and a water-miscible organic solventDOW PHARMACEUTICAL SCIENCES·Filed 2014·Granted Nov 29, 2016·5 cites·18 claims
- 1987US11478498B2Topical pharmaceutical formulations containing a low concentration of benzoyl peroxide in suspension in water and a water-miscible organic solventDOW PHARMACEUTICAL SCIENCES·Filed 2020·Granted Oct 25, 2022·1 cites·8 claims
- 2085US2023047106A1Topical pharmaceutical formulations containing a low concentration of benzoyl peroxide in suspension in water and a water-miscible organic solventBAUSCH HEALTH IRELAND LTD·Filed 2022·Application pending·0 cites
- 2180US10137142B2Topical pharmaceutical formulations containing a low concentration of benzoyl peroxide in suspension in water and a water-miscible organic solventDOW PHARMACEUTICAL SCIENCES·Filed 2016·Granted Nov 27, 2018·1 cites·12 claims
- 2276US7858662B2Medicament for the treatment of viral skin and tumour diseasesMEDIGENE AG·Filed 2002·Granted Dec 28, 2010·9 cites·25 claims
- 2372US9616132B2Kinetin/zeatin topical formulationDOW PHARMACEUTICAL SCIENCES·Filed 2014·Granted Apr 11, 2017·0 cites·11 claims
- 2468US10166235B2Kinetin/zeatin topical formulationDOW PHARMACEUTICAL SCIENCES·Filed 2018·Granted Jan 1, 2019·0 cites·19 claims
- 2567US9770406B2Medicament for the treatment of viral skin and tumour diseasesCHANG YUNIK·Filed 2010·Granted Sep 26, 2017·1 cites·28 claims
- 2667US2010048659A1Aqueous compositions containing metronidazoleCHANG YUNIK·Filed 2009·Application pending·0 cites
- 2765US9925194B2Kinetin/zeatin topical formulationDOW PHARMACEUTICAL SCIENCES·Filed 2017·Granted Mar 27, 2018·0 cites·18 claims
- 2863US2008154030A1Method for increasing the solubility of betacyclodextrinCHANG YUNIK·Filed 2008·Application pending·0 cites
- 2959US2020054552A1Medicament for the treatment of viral skin and tumour diseasesMEDIGENE AG·Filed 2019·Application pending·0 cites
- 3053US2012028929A1Tetracycline stabilizing formulationsPOWER DAVID F·Filed 2009·Application pending·0 cites
- 3152US10434059B2Medicament for the treatment of viral skin and tumour diseasesFOUGERA PHARMACEUTICALS INC·Filed 2017·Granted Oct 8, 2019·0 cites·26 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →