Assignee
PRODUCTION TECH INT
US·3 granted patents·891 citations·filing 1986–1990
Top patents by PatentIndex Score
3 records- 0198US4716960AMethod and system for introducing electric current into a wellPRODUCTION TECH INT·Filed 1986·Granted Jan 5, 1988·484 cites·12 claims
- 0295US5207273AMethod and apparatus for pumping wellsPRODUCTION TECH INT·Filed 1990·Granted May 4, 1993·371 cites·10 claims
- 0366US4861074ATubing collarPRODUCTION TECH INT·Filed 1988·Granted Aug 29, 1989·36 cites·7 claims
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →