Assignee
STEEL ENG CO LTD
ZA·9 granted patents·110 citations·filing 1976–1987
Top patents by PatentIndex Score
9 records- 0174US4179983AHydraulic percussive machinesSTEEL ENG CO LTD·Filed 1977·Granted Dec 25, 1979·27 cites·4 claims
- 0256US4799556ADrilling boomSTEEL ENG CO LTD·Filed 1987·Granted Jan 24, 1989·30 cites·7 claims
- 0354US4430926AHydraulic rotary-percussive machinesSTEEL ENG CO LTD·Filed 1979·Granted Feb 14, 1984·19 cites·1 claims
- 0445US4203350AHydraulic percussive machinesSTEEL ENG CO LTD·Filed 1978·Granted May 20, 1980·8 cites·5 claims
- 0532US4852663AHydraulic percussive machinesSTEEL ENG CO LTD·Filed 1987·Granted Aug 1, 1989·6 cites·4 claims
- 0632US4126192AHydraulic percussive machinesSTEEL ENG CO LTD·Filed 1977·Granted Nov 21, 1978·5 cites·3 claims
- 0732US4066135ATelescopic rock drill mountingSTEEL ENG CO LTD·Filed 1976·Granted Jan 3, 1978·5 cites·13 claims
- 0832US4000873AMounting for rock drillsSTEEL ENG CO LTD·Filed 1976·Granted Jan 4, 1977·5 cites·2 claims
- 0926US4846288AHydraulically powered rotary percussive machinesSTEEL ENG CO LTD·Filed 1987·Granted Jul 11, 1989·5 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when STEEL ENG CO LTD files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →