Inventor · disambiguated record
Carl-Ernst Van Der Smissen
Also filed as: VAN DER SMISSEN CARL E · VAN DER SMISSEN CARL-ERNST
13 granted patents·408 citations·filing 1979–1992
94Inventor score
Files withDRAEGERWERK AG13
Top patents by PatentIndex Score
13 records- 0189US5297544ARespirator with inner half mask and pollutant indicatorDRAEGERWERK AG·Filed 1992·Granted Mar 29, 1994·115 cites·13 claims
- 0288US4677096AAir cleaning material for use in air filtersDRAEGERWERK AG·Filed 1985·Granted Jun 30, 1987·53 cites·3 claims
- 0381US4807614AProtective hoodDRAEGERWERK AG·Filed 1988·Granted Feb 28, 1989·49 cites·8 claims
- 0473US4636485AFilter comprising a catalyst on a substrate for purification of airDRAEGERWERK AG·Filed 1985·Granted Jan 13, 1987·45 cites·2 claims
- 0572US4277443AAir purifying cartridges for respiratorsDRAEGERWERK AG·Filed 1979·Granted Jul 7, 1981·24 cites·13 claims
- 0670US4822572AChemical oxygen generatorDRAEGERWERK AG·Filed 1985·Granted Apr 18, 1989·19 cites·10 claims
- 0746US5113856AImpregnation for respirator filters filled with active carbonDRAEGERWERK AG·Filed 1991·Granted May 19, 1992·18 cites·3 claims
- 0844US5036842ARespirator with blower support and regeneration of the breathing filterDRAEGERWERK AG·Filed 1989·Granted Aug 6, 1991·37 cites·5 claims
- 0944US4997803ACO2 adsorbent massDRAEGERWERK AG·Filed 1989·Granted Mar 5, 1991·15 cites·5 claims
- 1040US4623637AProcess for producing a catalyst for oxidizing carbon monoxide and air filter produced by the processDRAEGERWERK AG·Filed 1985·Granted Nov 18, 1986·12 cites·2 claims
- 1140US4591399AIgniting mixture for chemical oxygen generatorsDRAEGERWERK AG·Filed 1985·Granted May 27, 1986·7 cites·10 claims
- 1239US4795611AIndicator for the determination of chlorine gasDRAEGERWERK AG·Filed 1987·Granted Jan 3, 1989·6 cites·6 claims
- 1335US4731197APotassium superoxide pelletDRAEGERWERK AG·Filed 1987·Granted Mar 15, 1988·8 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →