Assignee
SANDLER HELMUT HELSA WERKE
DE·10 granted patents·1 pending application·387 citations·filing 1987–2006
Top patents by PatentIndex Score
11 records- 0185US4883052AProtective breathing maskSANDLER HELMUT HELSA WERKE·Filed 1987·Granted Nov 28, 1989·105 cites·32 claims
- 0284US6699561B2Activated carbon molded body and use thereofSANDLER HELMUT HELSA WERKE·Filed 2002·Granted Mar 2, 2004·40 cites·15 claims
- 0383US6083857ASurface elementSANDLER HELMUT HELSA WERKE·Filed 1996·Granted Jul 4, 2000·93 cites·29 claims
- 0474US4800190AFilter material and process for the production thereofSANDLER HELMUT HELSA WERKE·Filed 1987·Granted Jan 24, 1989·39 cites·13 claims
- 0568US6423123B1Filtering material for fluidic media and a method and device for producing such a filtering materialSANDLER HELMUT HELSA WERKE·Filed 1999·Granted Jul 23, 2002·44 cites·41 claims
- 0647US6300466B1Production of activated carbon from polymers with aromatic nucleiSANDLER HELMUT HELSA WERKE·Filed 1998·Granted Oct 9, 2001·11 cites·64 claims
- 0744US5603753AFilter device having elongate absorber particles fixed to a flat carrierSANDLER HELMUT HELSA WERKE·Filed 1995·Granted Feb 18, 1997·11 cites·8 claims
- 0844US5334436AFlexible material including active particles, process for the production thereof, and protective clothing made therefromSANDLER HELMUT HELSA WERKE·Filed 1993·Granted Aug 2, 1994·30 cites·26 claims
- 0933US5769992AProcess for the production of flexible surface filter material for dealing with noxious substancesSANDLER HELMUT HELSA WERKE·Filed 1995·Granted Jun 23, 1998·11 cites·18 claims
- 1032US2006264139A1Filter materials with a bipolar coatingSANDLER HELMUT HELSA WERKE·Filed 2006·Application pending·0 cites
- 1116US6004495AMethod of producing an adsorber filter bodySANDLER HELMUT HELSA WERKE·Filed 1997·Granted Dec 21, 1999·3 cites·12 claims
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