Assignee
ENTERRA PATCO OILFIELD PRODUCT
CA·4 granted patents·117 citations·filing 1994–1995
Technology mixE21B4
Top patents by PatentIndex Score
4 records- 0172US5692562AWell rod, centralizer and centralizer stop interfaces with wear reducing surfaceENTERRA PATCO OILFIELD PRODUCT·Filed 1995·Granted Dec 2, 1997·63 cites·19 claims
- 0249US5487426ARod guide with removable vanesENTERRA PATCO OILFIELD PRODUCT·Filed 1994·Granted Jan 30, 1996·25 cites·12 claims
- 0336US5452760AWell pump tubing scrapersENTERRA PATCO OILFIELD PRODUCT·Filed 1994·Granted Sep 26, 1995·22 cites·9 claims
- 0433US5494104ASnap-on rod guideENTERRA PATCO OILFIELD PRODUCT·Filed 1994·Granted Feb 27, 1996·7 cites·9 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →