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

Xiong Liu

STSeagate Technology: 168 patents #2 of 4,626Top 1%
Samsung: 5 patents #22,466 of 75,807Top 30%
UFUniversity Of Central Florida: 4 patents #133 of 1,118Top 15%
Rolls-Royce Plc: 4 patents #396 of 2,886Top 15%
CCCrrc Zhuzhou Institute Co.: 3 patents #2 of 39Top 6%
ZCZhuzhou Crrc Times Electric Co.: 3 patents #3 of 77Top 4%
Disney: 3 patents #2,018 of 6,686Top 35%
INIntel: 3 patents #10,349 of 30,777Top 35%
WSWebasto Se: 2 patents #95 of 401Top 25%
GCGuangzhou Automobile Group Co.: 1 patents #104 of 280Top 40%
STSegate Technology: 1 patents #2 of 34Top 6%
BCBeijing Baidu Netcom Science Technology Co.: 1 patents #804 of 1,823Top 45%
XUXi'An Jiaotong University: 1 patents #201 of 791Top 30%
Huawei: 1 patents #8,196 of 15,535Top 55%
CGCarl Zeiss Microscopy Gmbh: 1 patents #298 of 564Top 55%
Shanghai, CA: #7 of 801 inventorsTop 1%
Overall (All Time): #2,806 of 4,157,543Top 1%
216 Patents All Time

Issued Patents All Time

Showing 201–216 of 216 patents

Patent #TitleCo-InventorsDate
6829115 Method and apparatus for measuring half frequency whirl in a spindle motor ChoonKiat Lim, YongJie Tang, Pow-Hing Yong 2004-12-07
6771441 Track mis-registration measurement for a disc drive KayHee Tang, Aik Chuan Lim, Edmun Chian Song Seng, UttHeng Kan, ChoonKiat Lim 2004-08-03
6765737 Variable track densities on a recording medium to compensate for non-repeatable runout (NRRO) error ChoonKiat Lim, Joseph Cheng-Tsu Liu, Kevin A. Gomez 2004-07-20
6754030 Optimal reader-to-writer offset measurement of a head in a disc drive for reduced track misregistration Edmun Chian Song Seng, Aik Chuan Lim, Kay Hee Tang, Utt Heng Kan, Choon Kiat Lim 2004-06-22
6687094 Head actuator for a data storage head having a low mass with lateral stiffness Shri Hari Narayan, Michael Joo Chiang Toh, ChoonKiat Lim, ChorShan Cheng 2004-02-03
6661614 Magnetless actuator for disc drive Tak Koon Ooi, Kevin A. Gomez, Kwee Teck Say, Choon Kiat Lim 2003-12-09
6654198 Repeatable run-out error compensation method for a disc drive Kian Keong Ooi, ChoonKiat Lim, YangQuan Chen, Qiang Bi, MingZhong Ding +2 more 2003-11-25
6628471 Detection and cancellation of cage frequency using the clock head in a servowriter ShuangQuan Min, Ricky Yeo, KianKeong Ooi, BengWee Quak, ChiapHeok Ang 2003-09-30
6606214 System and method to minimize bearing pivot effect in disc drive actuator Joseph Cheng-Tsu Liu, Choon Kiat Lim, Kevin A. Gomez 2003-08-12
6590739 Disc clamp with shape memory alloys Quock Ng, ChoonKiat Lim 2003-07-08
6487035 Method and apparatus for adaptive feedforward cancellation Joseph Cheng-Tsu Liu, Kevin A. Gomez, MingZhong Ding 2002-11-26
6476995 Method and apparatus for reducing track misregistration from servo track writing Joseph Cheng-Tsu Liu, Kevin A. Gomez, ChoonKiat Lim 2002-11-05
6453722 Integrated test system for a disc drive pivot bearing and actuator Joseph Cheng-Tsu Liu, Kevin A. Gomez, ChoonKiat Lim 2002-09-24
6414817 High friction disc support member to increase disc drive mechanical shock resistance Erming Luo, Mathew Daniel, John D. Stricklin, Nigel F. Misso 2002-07-02
6411471 Low friction bearing pivot for disc drive Joseph Cheng-Tsu Liu, Choon Kiat Lim, Wai Meng Chan 2002-06-25
6256173 Apparatus for isolating vibration in pivot bearing assemblies Wai Onn Chee, Joseph Heng Tung Lau, Michael Joo Chiang Toh 2001-07-03