Assignee
HAWERA PROBST KG HARTMETALL
DE·27 granted patents·524 citations·filing 1975–1994
Top patents by PatentIndex Score
27 records- 0181US4594033ABoring tool for producing undercuts in holesHAWERA PROBST KG HARTMETALL·Filed 1984·Granted Jun 10, 1986·35 cites·20 claims
- 0281US4202557ADrilling deviceHAWERA PROBST KG HARTMETALL·Filed 1978·Granted May 13, 1980·33 cites·14 claims
- 0381US4174915AMilling cutter, especially contour milling cutterHAWERA PROBST KG HARTMETALL·Filed 1978·Granted Nov 20, 1979·31 cites·10 claims
- 0480US4210215ARock drill with helical dust conveying grooveHAWERA PROBST KG HARTMETALL·Filed 1978·Granted Jul 1, 1980·30 cites·12 claims
- 0578US4889200ARock drillHAWERA PROBST KG HARTMETALL·Filed 1988·Granted Dec 26, 1989·27 cites·6 claims
- 0674US4967855ADrilling toolHAWERA PROBST KG HARTMETALL·Filed 1989·Granted Nov 6, 1990·44 cites·12 claims
- 0772US4667755ADrill bit having hollow cylindrical body and a plurality of PCD cutting elementsHAWERA PROBST KG HARTMETALL·Filed 1985·Granted May 26, 1987·24 cites·19 claims
- 0870US4729441ARock drillHAWERA PROBST KG HARTMETALL·Filed 1985·Granted Mar 8, 1988·42 cites·12 claims
- 0964US4202420ARock drill with hard metal drilling headHAWERA PROBST KG HARTMETALL·Filed 1978·Granted May 13, 1980·15 cites·20 claims
- 1063US4579180ADrilling bitHAWERA PROBST KG HARTMETALL·Filed 1984·Granted Apr 1, 1986·35 cites·12 claims
- 1159US4951761ARock drillHAWERA PROBST KG HARTMETALL·Filed 1989·Granted Aug 28, 1990·28 cites·11 claims
- 1259US4699226AInterchangeable conveying spiral for rock drillsHAWERA PROBST KG HARTMETALL·Filed 1986·Granted Oct 13, 1987·16 cites·7 claims
- 1354US4036482AApparatus for hardening workpieces of steelHAWERA PROBST KG HARTMETALL·Filed 1976·Granted Jul 19, 1977·12 cites·9 claims
- 1453US5482124ARock drillHAWERA PROBST KG HARTMETALL·Filed 1994·Granted Jan 9, 1996·26 cites·14 claims
- 1551US4903787ARock drillHAWERA PROBST KG HARTMETALL·Filed 1988·Granted Feb 27, 1990·20 cites·14 claims
- 1649US5002139ADrilling toolHAWERA PROBST KG HARTMETALL·Filed 1989·Granted Mar 26, 1991·19 cites·16 claims
- 1748US4852670ADrilling tool with an exchangeable feed helixHAWERA PROBST KG HARTMETALL·Filed 1987·Granted Aug 1, 1989·10 cites·11 claims
- 1847US4446934ABoring tool for radial enlargement of a cylindrical foundation boreHAWERA PROBST KG HARTMETALL·Filed 1982·Granted May 8, 1984·10 cites·14 claims
- 1942US4696355ADrilling toolsHAWERA PROBST KG HARTMETALL·Filed 1986·Granted Sep 29, 1987·8 cites·5 claims
- 2039US4258808ARock drillHAWERA PROBST KG HARTMETALL·Filed 1979·Granted Mar 31, 1981·6 cites·19 claims
- 2139US4006042AMethod of and apparatus for hardening workpieces of steelHAWERA PROBST KG HARTMETALL·Filed 1975·Granted Feb 1, 1977·6 cites·4 claims
- 2237US4883135AApparatus for rock drillHAWERA PROBST KG HARTMETALL·Filed 1988·Granted Nov 28, 1989·14 cites·19 claims
- 2336US5403130ARock drillHAWERA PROBST KG HARTMETALL·Filed 1993·Granted Apr 4, 1995·14 cites·19 claims
- 2434US4924953ARock drillHAWERA PROBST KG HARTMETALL·Filed 1989·Granted May 15, 1990·6 cites·9 claims
- 2533US4942931ADrilling tool having frictionally rotatable drilling headHAWERA PROBST KG HARTMETALL·Filed 1989·Granted Jul 24, 1990·5 cites·10 claims
- 2630US4750572ADrilling tool with an interchangeable conveying spiralHAWERA PROBST KG HARTMETALL·Filed 1986·Granted Jun 14, 1988·2 cites·12 claims
- 2726US4002214ADrilling tool, especially for hammer drillsHAWERA PROBST KG HARTMETALL·Filed 1975·Granted Jan 11, 1977·6 cites·17 claims
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