CC

Chung Chang

Schlumberger Technology: 10 patents #621 of 7,293Top 9%
ME Mediatek: 1 patents #1,722 of 2,888Top 60%
Overall (All Time): #417,007 of 4,157,543Top 15%
12
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10377012 Method for manufacturing angle-type air tool housing 2019-08-13
10031574 Apparatus and method for controlling multi-core processor of computing system Jih-Ming Hsu, Yen-Lin Lee, Jia-Ming Chen, Shih-Yen Chiu, Ya-Ting Chang +1 more 2018-07-24
8794317 Cased borehole tool orientation measurement Henri-Pierre Valero, Jean G. Saint Germain 2014-08-05
8141635 Cased borehole tool orientation measurement Henri-Pierre Valero, Jean G. Saint Germain 2012-03-27
8009510 Two way check shot and reverse VSP while drilling 2011-08-30
7617908 Downhole seismic source Richard Timothy Coates, Jean G. Saint Germain 2009-11-17
7578359 Downhole acoustic source Richard Timothy Coates, Iain Cooper, Marcel Boucher 2009-08-25
7334661 Acoustic logging tool sleeve Jahir Pabon, David Johnson, Vivian Pistre, Tarek M. Habashy, Smaine Zeroug +4 more 2008-02-26
7302346 Data logging Marwan Moufarrej, Sandip Bose, Tarek M. Habashy 2007-11-27
6782970 Acoustic source using a shaftless electrical hammer 2004-08-31
6671380 Acoustic transducer with spiral-shaped piezoelectric shell Hiroshi Hori 2003-12-30
5226018 Geophysical prospecting method using pseudo-random pulse sequences Benoit Froelich, Christopher Kimball 1993-07-06