Assignee
BETTERMANN OBO OHG
DE·8 granted patents·145 citations·filing 1981–1994
Top patents by PatentIndex Score
8 records- 0190US4415792AElectrical stud welding device for welding studs of different diameters without pre-testing adjusting weldsBETTERMANN OBO OHG·Filed 1981·Granted Nov 15, 1983·59 cites·7 claims
- 0277US4420674AProcedure and device for welding studs and similar parts to a work pieceBETTERMANN OBO OHG·Filed 1981·Granted Dec 13, 1983·28 cites·16 claims
- 0355US4435630AStud welding apparatusBETTERMANN OBO OHG·Filed 1981·Granted Mar 6, 1984·12 cites·22 claims
- 0447US4441007AElectrical stud-welding apparatusBETTERMANN OBO OHG·Filed 1981·Granted Apr 3, 1984·9 cites·14 claims
- 0543US4969582AApparatus for feeding an elongated fastener to a fastening tool, especially for feeding a stud in a stud welderBETTERMANN OBO OHG·Filed 1988·Granted Nov 13, 1990·10 cites·6 claims
- 0639US4629857AStud-welding deviceBETTERMANN OBO OHG·Filed 1985·Granted Dec 16, 1986·9 cites·10 claims
- 0738US4669742AStud holder for a stud welderBETTERMANN OBO OHG·Filed 1985·Granted Jun 2, 1987·13 cites·8 claims
- 0829US5426276AStud-welding apparatusBETTERMANN OBO OHG·Filed 1994·Granted Jun 20, 1995·5 cites·9 claims
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