HE
Filed: November 17, 1947
OIL WELL SERVICING-NAMELY, THE RECLAMATION OF STUCK PIPE OR TUBING AND THE LIKE, TOOLS THAT HAVE BECOME STUCK IN AN OIL…
Owned by: HOUSTON ENGINEERS, INC.
Serial Number: 71541420
HE
Filed: November 17, 1947
OIL WELL TOOLS-NAMELY, REVERSING TOOLS, RELEASING SPEARS, TAPERS, BOX TAPS, INSIDE CUTTERS, OUTSIDE CUTTERS, RELEASING OVERSHOTS…
Owned by: HOUSTON ENGINEERS, INC.
Serial Number: 71541421
MAGNUM
Filed: December 23, 1991
tools; namely, oil tools and fishing and drilling systems, including drilling and fishing jars
Owned by: HOUSTON ENGINEERS, INC.
Serial Number: 74233227
HYDRA-DRILL
Filed: August 16, 1993
downhole drilling motors
Owned by: HOUSTON ENGINEERS, INC.
Serial Number: 74424438
HYDRA-GUIDE
Filed: June 22, 1995
measuring while drilling (MWD) tools for use in the oil and gas industry
Owned by: HOUSTON ENGINEERS, INC.
Serial Number: 74691928
