Inventor · disambiguated record
Hans J. Birr
Also filed as: BIRR HANS J · BIRR HANS-JOACHIM
6 granted patents·103 citations·filing 1980–1991
82Inventor score
Files withVORWERK CO INTERHOLDING6
Top patents by PatentIndex Score
6 records- 0167US4269519ASafety arrangement for a mixer catchVORWERK CO INTERHOLDING·Filed 1980·Granted May 26, 1981·36 cites·4 claims
- 0263US4989295ATelescopic guide wand for floor-cleaning appliancesVORWERK CO INTERHOLDING·Filed 1990·Granted Feb 5, 1991·36 cites·4 claims
- 0355US5259085AFloor-care work disks which can be attached by clip mounting to the drive plate of a floor-care instrumentVORWERK CO INTERHOLDING·Filed 1991·Granted Nov 9, 1993·25 cites·12 claims
- 0429US4289416AArrangement for mounting and dismounting pivoted levers in tool housingsVORWERK CO INTERHOLDING·Filed 1980·Granted Sep 15, 1981·2 cites·3 claims
- 0528US4785492AFloor cleaning apparatusVORWERK CO INTERHOLDING·Filed 1987·Granted Nov 22, 1988·3 cites·11 claims
- 0627US4846426AHang-up and protective arrangement for an electrical applianceVORWERK CO INTERHOLDING·Filed 1988·Granted Jul 11, 1989·1 cites·8 claims
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