Inventor

JANDA MARVIN E

US3 patents

Patents

3 patents

US5321213AJun 14, 1994

Downhole epicyclic motion orbital seismic source

CONOCO INC9 citations70

US5285023AFeb 8, 1994

Downhole hydraulic rotary seismic source

CONOCO INC3 citations59

US4958170ASep 18, 1990

Multiple film width transport adaptor

CONOCO INC2 citations48