Inventor
MCEACHERN MATHEW J
US3 patents
Patents
3 patentsUS9828979B2Nov 28, 2017
Accumulator over hydraulic pump double-acting cylinder for artificial lift operations
HALLIBURTON ENERGY SERVICES INC0 citations48
US9631464B2Apr 25, 2017
Pneumatic-on-top counterbalanced three-chamber cylinder for artificial lift operations
HALLIBURTON ENERGY SERVICES INC0 citations48
US9631463B2Apr 25, 2017
Accumulator counterbalanced three chamber cylinder for artificial lift operations
HALLIBURTON ENERGY SERVICES INC1 citations48