Assignee
QUARTECH ENGINEERING LTD
GB·3 granted patents·142 citations·filing 2000–2000
Technology mixE21B3
Top patents by PatentIndex Score
3 records- 0177US6695058B1Method and apparatus for cleaning boreholesQUARTECH ENGINEERING LTD·Filed 2000·Granted Feb 24, 2004·55 cites·26 claims
- 0275US6595296B1Hydraulic control assemblyQUARTECH ENGINEERING LTD·Filed 2000·Granted Jul 22, 2003·48 cites·38 claims
- 0373US6508309B1Valve assemblyQUARTECH ENGINEERING LTD·Filed 2000·Granted Jan 21, 2003·39 cites·21 claims
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