| ESEIEH TERRAVENT ENVIRONMENTAL INC.
1725774 28 Apr 2015 | on 20 Apr 2018 | Class 037 Class 037 Construction and Repair Services Technical consulting services in the field of oil and gas production; technical services in the field of oil and gas production, namely, oil reservoir analysis; technical services in the field of oil and gas exploration and production, namely, analysis of core samples; technical services in the field of oil and gas exploration and production, namely, dielectric characterization of subterranean materials; technical design services in the field of oil and gas production, namely, design of systems for enhancing well production by heating of subsurface geologic formations with radio frequency (RF) energy; oil well improvement services, namely, heating of subsurface geologic formations to enhance well production; oil well improvement services, namely, enhancing well production by injection of substances and optional heating of subsurface geologic formations with radio frequency (RF) energy; installation, maintenance and repair of oil and gas production equipment; installation, maintenance and repair of systems for enhancing the production of oil by injection of substances and optional heating of subsurface geologic formations with radio frequency (RF) energy Class 040 Class 040 Treatment & Processing of Materials Services Class 042 Computer & Software Services & Scientific Services | | 
