Assignee
KALVE ERNEST
4 granted patents·68 citations·filing 1980–1990
Technology mixE02F4
Top patents by PatentIndex Score
4 records- 0174US4329795ALoad stress relief for walking dragline excavator base framesKALVE ERNEST·Filed 1980·Granted May 18, 1982·29 cites·31 claims
- 0262US4769932AWalking dragline excavator frames with torsion resistant tubular-web rail girders and other improvementsKALVE ERNEST·Filed 1987·Granted Sep 13, 1988·21 cites·30 claims
- 0346US4611440AWalking dragline base frame and revolving frame constructionKALVE ERNEST·Filed 1984·Granted Sep 16, 1986·11 cites·22 claims
- 0432US5040314AStress relief for walking dragline framesKALVE ERNEST·Filed 1990·Granted Aug 20, 1991·7 cites·20 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →