Assignee
CENTRAL MINE EQUIPMENT COMPANY
US·17 granted patents·203 citations·filing 1978–1995
Top patents by PatentIndex Score
17 records- 0157US4585256ASide feed water swivelCENTRAL MINE EQUIPMENT COMPANY·Filed 1984·Granted Apr 29, 1986·24 cites·2 claims
- 0257US4405020AAutomatic drive hammer systemCENTRAL MINE EQUIPMENT COMPANY·Filed 1981·Granted Sep 20, 1983·24 cites·12 claims
- 0349US4393945ARotary drill with a kelly bar and hydraulic chuckCENTRAL MINE EQUIPMENT COMPANY·Filed 1980·Granted Jul 19, 1983·11 cites·2 claims
- 0449US4345493ADrill rod holding and break-out deviceCENTRAL MINE EQUIPMENT COMPANY·Filed 1980·Granted Aug 24, 1982·17 cites·8 claims
- 0547US5085280ADrill rig shut-off systemCENTRAL MINE EQUIPMENT COMPANY·Filed 1989·Granted Feb 4, 1992·18 cites·15 claims
- 0646US4456079AApparatus and method for taking soil samplesCENTRAL MINE EQUIPMENT COMPANY·Filed 1982·Granted Jun 26, 1984·15 cites·8 claims
- 0742US5497843AHollow auger head assemblyCENTRAL MINE EQUIPMENT COMPANY·Filed 1995·Granted Mar 12, 1996·22 cites·5 claims
- 0841US5401218AOutboard planetary gear assembly for tracked vehiclesCENTRAL MINE EQUIPMENT COMPANY·Filed 1992·Granted Mar 28, 1995·11 cites·21 claims
- 0941US4192485ADrill rig hoistCENTRAL MINE EQUIPMENT COMPANY·Filed 1978·Granted Mar 11, 1980·6 cites·7 claims
- 1038US4638871AEarth drill rigCENTRAL MINE EQUIPMENT COMPANY·Filed 1985·Granted Jan 27, 1987·12 cites·3 claims
- 1136US4576498AAssembly structure for a soil samplerCENTRAL MINE EQUIPMENT COMPANY·Filed 1985·Granted Mar 18, 1986·10 cites·8 claims
- 1232US4482173ADrill string jointCENTRAL MINE EQUIPMENT COMPANY·Filed 1983·Granted Nov 13, 1984·6 cites·1 claims
- 1331US5062490AKelly bar couplingCENTRAL MINE EQUIPMENT COMPANY·Filed 1989·Granted Nov 5, 1991·6 cites·6 claims
- 1430US4870738AVehicle mounted drill rod holding deviceCENTRAL MINE EQUIPMENT COMPANY·Filed 1988·Granted Oct 3, 1989·5 cites·9 claims
- 1529US5460232ARotary earth drill bit socket shieldCENTRAL MINE EQUIPMENT COMPANY·Filed 1994·Granted Oct 24, 1995·6 cites·10 claims
- 1629US4854395AHydraulic kelly bar chuckCENTRAL MINE EQUIPMENT COMPANY·Filed 1988·Granted Aug 8, 1989·4 cites·14 claims
- 1729US4795222AMetal faced soft tracksCENTRAL MINE EQUIPMENT COMPANY·Filed 1987·Granted Jan 3, 1989·6 cites·6 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →