Assignee
HY TECH DRILLING LTD
CA·2 granted patents·1 pending application·12 citations·filing 2001–2020
Technology mixE21B3
Top patents by PatentIndex Score
3 records- 0143US11255152B2Drill hole inner tube plugHY TECH DRILLING LTD·Filed 2018·Granted Feb 22, 2022·0 cites·7 claims
- 0233US6604586B2Drilling apparatusHY TECH DRILLING LTD·Filed 2001·Granted Aug 12, 2003·12 cites·5 claims
- 0328US2022235611A1Diamond Drilling Hole Correction ToolHY TECH DRILLING LTD·Filed 2020·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →