Implosion crest phasing of several seismic sources

Implosion sound wave generating device

Improved arrangement of source and receiver lines for three...

Improved detectability of buried elongated objects such as...

Improved device for generating acoustic waves in water

Improved geophone calibration technique

Improved gravity sensing instrument

Improved ground coupling process for terrestrial seismic...

Improved logging-while-drilling apparatus and methods for...

Improved method and apparatus for predicting the fluid...

Improved method for migration before summation

Improved micro-machined suspension plate with integral proof...

Improved performance of permanently installed tubing...

Improved room separation in a wlan based rtls and method...

Improved security tag and method of making the same

Improved seismic surveying method

Improved sensors and an improved data sensing and recording...

Improved system for acquiring geophysical data

Improvements for seismic processing methods

Improvements in marine em exploration