Assignee
CHERRINGTON CORP
US·6 granted patents·179 citations·filing 1990–1993
Technology mixE21B6
Top patents by PatentIndex Score
6 records- 0167US5375669AMethod and apparatus for cleaning a boreholeCHERRINGTON CORP·Filed 1993·Granted Dec 27, 1994·43 cites·7 claims
- 0267US5269384AMethod and apparatus for cleaning a bore holeCHERRINGTON CORP·Filed 1991·Granted Dec 14, 1993·43 cites·18 claims
- 0361US5351764AMethod and apparatus for enlarging an underground pathCHERRINGTON CORP·Filed 1992·Granted Oct 4, 1994·29 cites·11 claims
- 0458US5096002AMethod and apparatus for enlarging an underground pathCHERRINGTON CORP·Filed 1990·Granted Mar 17, 1992·26 cites·30 claims
- 0551US5230388AMethod and apparatus for cleaning a bore hole using a rotary pumpCHERRINGTON CORP·Filed 1991·Granted Jul 27, 1993·23 cites·28 claims
- 0642US5375945AMethod and apparatus for thrusting a pipeline into bore holeCHERRINGTON CORP·Filed 1993·Granted Dec 27, 1994·15 cites·19 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →