Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
YC

Yigang Cai

Alcatel Lucent: 173 patents #1 of 4,169Top 1%
NONokia Solutions And Networks Oy: 16 patents #47 of 1,934Top 3%
Nokia Technologies Oy: 14 patents #208 of 3,242Top 7%
ATAT&T: 13 patents #1,336 of 18,772Top 8%
NANokia Of America: 8 patents #2 of 257Top 1%
PGProvenance Asset Group: 2 patents #6 of 142Top 5%
WIWsou Investments: 1 patents #2 of 48Top 5%
Naperville, IL: #1 of 3,051 inventorsTop 1%
Illinois: #29 of 84,256 inventorsTop 1%
Overall (All Time): #2,623 of 4,157,543Top 1%
223 Patents All Time

Issued Patents All Time

Showing 176–200 of 223 patents

Patent #TitleCo-InventorsDate
8175575 Online charging for roaming users in a proxy online charging system of a visited network Chung-Zin Liu 2012-05-08
8175975 IMS device operable for financial transaction authorization and ID cards display Shiyan Hua 2012-05-08
8165561 IMS networks providing business-related content to wireless devices Shiyan Hua 2012-04-24
8155290 Systems and methods for providing per call measurement data in an IMS network 2012-04-10
8145514 Charging element capacity control in an IMS network 2012-03-27
8139735 IMS gateway systems and methods Sheng-Chang Chen, Qinghong He, Ling Jiang, Ke Pei, Judith A. Stafford +3 more 2012-03-20
8131266 Short message service communication security Suzann Hua 2012-03-06
8126124 Charging for long duration sessions in communication networks 2012-02-28
8126123 Pre-biller in internet protocol multimedia subsystem (IMS) charging gateway function (CGF) Yile Enoch Wang 2012-02-28
8121624 Message spoofing detection via validation of originating switch Alok Sharma 2012-02-21
8116728 Charging in LTE/EPC communication networks Chung-Zin Liu 2012-02-14
8102981 Alerting for long duration sessions in communication networks 2012-01-24
8099117 SMS message delivery over broadband data networks Jay Bhatt, Alan Curtis, Russell Morgan, Gyan Shanker 2012-01-17
8090346 Controlling a shutoff/restart of mobile virtual network operations prepaid services 2012-01-03
8054956 Flexible recharge system for prepaid telecommunications service 2011-11-08
8046381 IMS network access using legacy devices Simon Chen, Ivy Qingfang Meng, Bill Xiang Yu Qian, Alexander Aihao Yin, Elsie Shu Fang Zhang +1 more 2011-10-25
8023926 Offline charging for sessions over a 3GPP network and a WLAN access network Shiyan Hua 2011-09-20
7991131 Control of prepaid balance status notification William Dale Bartter, Werner Ulrich 2011-08-02
7962120 Allocation of internet protocol (IP) multimedia subsystem (IMS) charges Shiyan Hua 2011-06-14
7945241 Charging for roaming users in IMS networks Shiyan Hua 2011-05-17
7940904 Converged offline charging and online charging Xiang Li, Peng Wang, Jay Z. Zhao 2011-05-10
7912908 Electronic message forwarding control Alok Sharma 2011-03-22
7894859 Privacy protection in network-based phonebooks Shiyan Hua 2011-02-22
7885661 Systems and methods for mobile virtual network operator mobile to mobile service 2011-02-08
7877487 Dynamic service triggers in communication networks Shufang Zhang 2011-01-25