Inventor · disambiguated record
Yi Hai Zhang
Also filed as: Zhang yi hai
4 granted patents·7 citations·filing 2014–2018
65Inventor score
Technology areasH04W
Files withBLACKBERRY LTD4
Top patents by PatentIndex Score
4 records- 0181US10165485B2Method for selecting a cellular networkBLACKBERRY LTD·Filed 2018·Granted Dec 25, 2018·3 cites·19 claims
- 0279US9942816B2Method for selecting a cellular networkBLACKBERRY LTD·Filed 2014·Granted Apr 10, 2018·4 cites·17 claims
- 0356US10506540B2Reliability of VoLTE/ViLTE callsBLACKBERRY LTD·Filed 2018·Granted Dec 10, 2019·0 cites·20 claims
- 0453US10009865B2Reliability of VoLTE/ViLTE callsBLACKBERRY LTD·Filed 2016·Granted Jun 26, 2018·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →