Alberta
Canada
2
2017-01-05
2
2018-01-16
These are the the leading inventors for applications assigned to Progressive Oilfield Services Ltd.:
Progressive Oilfield Services Ltd. based in Alberta, CA has been assigned the rights to these inventions. The list includes both Pending Applications and Patent Grants:
Tool for unseizing and lubricating well valves, and method of unseizing said valves
#2 | 2016-01-07 ✅ Patent 9,447,659 granted on 2016-09-20Tool for unseizing and lubricating well valves, and method of unseizing said valves
513093 ⎘