Inventor · disambiguated record
Helen Zhang
Also filed as: ZHANG HELEN
4 granted patents·4 pending applications·41 citations·filing 2002–2014
71Inventor score
Top patents by PatentIndex Score
8 records- 0180US7414985B1Link aggregationCIENA CORP·Filed 2002·Granted Aug 19, 2008·37 cites·28 claims
- 0268US9481865B2Serum-free freezing medium used in adipose-derived stem cells and establishment of adipose-derived stem cell libraryZHANG HELEN·Filed 2012·Granted Nov 1, 2016·1 cites·3 claims
- 0368US9313537B2Methods and systems for presenting advertisements to particular users based on perceived lulls in media assetsROVI GUIDES INC·Filed 2014·Granted Apr 12, 2016·2 cites·18 claims
- 0462US9313538B2Methods and systems for establishing a mode of communication between particular users based on perceived lulls in media assetsROVI GUIDES INC·Filed 2014·Granted Apr 12, 2016·1 cites·20 claims
- 0556US2015317686A1Methods and systems for placing advertisements based on social media activityUNITED VIDEO PROPERTIES INC·Filed 2014·Application pending·0 cites
- 0649US2013347029A1Systems and methods for navigating to content without an advertisementTANG YOUNG·Filed 2012·Application pending·0 cites
- 0747US2013346430A1Systems and methods for navigating to content without an advertisementTANG YOUNG·Filed 2012·Application pending·0 cites
- 0840US2013347035A1Systems and methods for navigating to a favorite content source without an advertisementTANG YOUNG·Filed 2012·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →