Inventor · disambiguated record
Ludger Helmes
Also filed as: HELMES LUDGER
7 granted patents·195 citations·filing 1982–1994
88Inventor score
Files withVORWERK CO INTERHOLDING7
Top patents by PatentIndex Score
7 records- 0183US4610340AOverload safety on clutchesVORWERK CO INTERHOLDING·Filed 1983·Granted Sep 9, 1986·26 cites·6 claims
- 0280US5766283ADust filter bag for a vacuum cleanerVORWERK CO INTERHOLDING·Filed 1994·Granted Jun 16, 1998·57 cites·28 claims
- 0366US5867862AVacuum cleaning appliance with telescopic handleVORWERK CO INTERHOLDING·Filed 1994·Granted Feb 9, 1999·31 cites·8 claims
- 0466US4532667AFloor cleaning device having a replaceable brush assemblyVORWERK CO INTERHOLDING·Filed 1984·Granted Aug 6, 1985·31 cites·8 claims
- 0556US5468271ADust filter bag for a vacuum cleanerVORWERK CO INTERHOLDING·Filed 1993·Granted Nov 21, 1995·25 cites·14 claims
- 0645US4458378AVacuum cleaner nozzleVORWERK CO INTERHOLDING·Filed 1982·Granted Jul 10, 1984·14 cites·5 claims
- 0738US4888850AVacuum cleaner nozzle arrangementVORWERK CO INTERHOLDING·Filed 1987·Granted Dec 26, 1989·11 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →