Inventor · disambiguated record
Yongfeng Cai
Also filed as: CAI YONGFENG
3 granted patents·2 pending applications·3 citations·filing 2005–2010
53Inventor score
Top patents by PatentIndex Score
5 records- 0165US7889856B2System and method for providing RBT in communication networkHUAWEI TECH CO LTD·Filed 2005·Granted Feb 15, 2011·3 cites·4 claims
- 0246US2010020950A1Device, method and system for realizing hangup notification serviceHUAWEI TECH CO LTD·Filed 2009·Application pending·0 cites
- 0338US8824657B2Providing ring back tones in a communication networkLU XUANMING·Filed 2010·Granted Sep 2, 2014·0 cites·15 claims
- 0436US8060087B2CDMA intelligent network system and its method, device for realizing international roaming serviceLU XUANMING·Filed 2008·Granted Nov 15, 2011·0 cites·12 claims
- 0536US2007190972A1Method and system for implementing wireless intelligent servicesCAI YONGFENG·Filed 2007·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →