Inventor
LANGER FRIEDRICH H
US4 patents
Patents
4 patentsUS4984633AJan 15, 1991
Nozzle effect protectors, centralizers, and stabilizers and related methods
WEATHERFORD US INC125 citations95
US4794986AJan 3, 1989
Reticulated centralizing apparatus
WEATHERFORD US INC56 citations93
US4589495AMay 20, 1986
Apparatus and method for inserting flow control means into a well casing
WEATHERFORD US INC126 citations93
US4979562ADec 25, 1990
Float equipment including float collars and modular plugs for well operations
WEATHERFORD US INC39 citations90