Assignee
DRAEGERWERK AG
DE·577 granted patents·4 pending applications·19,219 citations·filing 1974–2007
Top patents by PatentIndex Score
581 records- 0199US4750520AElectrically-actuable valveDRAEGERWERK AG·Filed 1987·Granted Jun 14, 1988·404 cites·15 claims
- 0299US4484576AApparatus for admixing liquid anesthetics and respiratory gasDRAEGERWERK AG·Filed 1983·Granted Nov 27, 1984·153 cites·2 claims
- 0396US5065978AValve arrangement of microstructured componentsDRAEGERWERK AG·Filed 1990·Granted Nov 19, 1991·204 cites·3 claims
- 0496US5029805AValve arrangement of microstructured componentsDRAEGERWERK AG·Filed 1989·Granted Jul 9, 1991·666 cites·3 claims
- 0596US4499423ACircuit arrangement for correction of a sensor outputDRAEGERWERK AG·Filed 1981·Granted Feb 12, 1985·70 cites·5 claims
- 0696US4111197ARespiratory device coupling constructionDRAEGERWERK AG·Filed 1977·Granted Sep 5, 1978·117 cites·3 claims
- 0795US5353789AA flaccid mask with straps and a supporting element that force the mask into sealing engagement with the wearer's face in response to force exerted by the straps on the supporting elementDRAEGERWERK AG·Filed 1992·Granted Oct 11, 1994·228 cites·6 claims
- 0894US4470413AProtective breathing apparatus including a mask and mouthpieceDRAEGERWERK AG·Filed 1982·Granted Sep 11, 1984·133 cites·5 claims
- 0994US4146597ARespiratory air humidifier for respiratorsDRAEGERWERK AG·Filed 1977·Granted Mar 27, 1979·82 cites·1 claims
- 1093US7481221B2Breathing mask with integrated suction areaDRAEGERWERK AG·Filed 2005·Granted Jan 27, 2009·95 cites·20 claims
- 1193US4262686AApparatus for the electrically controlled proportioning and mixing of gasesDRAEGERWERK AG·Filed 1979·Granted Apr 21, 1981·59 cites·6 claims
- 1292US5601078ABreathing apparatus with a display unitDRAEGERWERK AG·Filed 1995·Granted Feb 11, 1997·176 cites·17 claims
- 1392US5322059ABreathing mask with flow indicator for the respiration airDRAEGERWERK AG·Filed 1992·Granted Jun 21, 1994·149 cites·8 claims
- 1492US4840227AProcess for producing a hollow fiber mass transfer module and module produced by this processDRAEGERWERK AG·Filed 1988·Granted Jun 20, 1989·86 cites·5 claims
- 1592US4574799AGas mask constructionDRAEGERWERK AG·Filed 1983·Granted Mar 11, 1986·111 cites·3 claims
- 1692US4459822ACooling suit system and heat exchanger constructionDRAEGERWERK AG·Filed 1982·Granted Jul 17, 1984·74 cites·6 claims
- 1792US4378011ALung controlled pressure gas respirator for use with an oxygen mask and valving mechanism thereforDRAEGERWERK AG·Filed 1981·Granted Mar 29, 1983·109 cites·6 claims
- 1891US7481220B2Breathing mask with breathing gas supply through the strapDRAEGERWERK AG·Filed 2005·Granted Jan 27, 2009·76 cites·25 claims
- 1991US4734940ADevice for affixing a respiratory mask onto a protection helmetDRAEGERWERK AG·Filed 1987·Granted Apr 5, 1988·79 cites·13 claims
- 2091US4314564AMethod and apparatus for determining alcohol concentration in the bloodDRAEGERWERK AG·Filed 1980·Granted Feb 9, 1982·65 cites·13 claims
- 2191US4155961ARespiratory air humidifierDRAEGERWERK AG·Filed 1978·Granted May 22, 1979·67 cites·6 claims
- 2290US4644141AInfrared radiatorDRAEGERWERK AG·Filed 1985·Granted Feb 17, 1987·82 cites·10 claims
- 2390US4555252AElectrostatic filter constructionDRAEGERWERK AG·Filed 1984·Granted Nov 26, 1985·50 cites·1 claims
- 2489US7789554B2Double temperature sensorDRAEGERWERK AG·Filed 2007·Granted Sep 7, 2010·21 cites·19 claims
- 2589US5297544ARespirator with inner half mask and pollutant indicatorDRAEGERWERK AG·Filed 1992·Granted Mar 29, 1994·115 cites·13 claims
- 2689US4693853AAnesthetic vaporizerDRAEGERWERK AG·Filed 1986·Granted Sep 15, 1987·77 cites·5 claims
- 2789US4405294ADosing pumpDRAEGERWERK AG·Filed 1981·Granted Sep 20, 1983·45 cites·10 claims
- 2889US4136403AHead guard assembly comprising a protective helmet and a protective breathing maskDRAEGERWERK AG·Filed 1977·Granted Jan 30, 1979·71 cites·6 claims
- 2988US6607642B1Electrochemical gas sensor with diamond-like carbon electrodesDRAEGERWERK AG·Filed 2000·Granted Aug 19, 2003·37 cites·20 claims
- 3088US5314605AMeasuring cell for electrochemically detecting a gasDRAEGERWERK AG·Filed 1992·Granted May 24, 1994·70 cites·9 claims
- 3188US5269293ACooling device for cooling breathing gas in a respiratory protection deviceDRAEGERWERK AG·Filed 1991·Granted Dec 14, 1993·67 cites·14 claims
- 3288US4677096AAir cleaning material for use in air filtersDRAEGERWERK AG·Filed 1985·Granted Jun 30, 1987·53 cites·3 claims
- 3388US4351327ADevice for connection to a respiratory gas lineDRAEGERWERK AG·Filed 1981·Granted Sep 28, 1982·58 cites·14 claims
- 3488US4277251AMethod and device for determining the alcohol content of a person's breathingDRAEGERWERK AG·Filed 1980·Granted Jul 7, 1981·46 cites·1 claims
- 3588US4090078AMethod and arrangement for determining alcohol content in the breathDRAEGERWERK AG·Filed 1977·Granted May 16, 1978·44 cites·8 claims
- 3687US7758735B2Open electrochemical sensorDRAEGERWERK AG·Filed 2006·Granted Jul 20, 2010·13 cites·20 claims
- 3787US5931163AValve for setting the flow of a flow mediumDRAEGERWERK AG·Filed 1997·Granted Aug 3, 1999·62 cites·12 claims
- 3887US5763792ARespiratory flow sensorDRAEGERWERK AG·Filed 1997·Granted Jun 9, 1998·65 cites·20 claims
- 3987US5303701ABlower-supported gas mask and breathing equipment with an attachable control partDRAEGERWERK AG·Filed 1992·Granted Apr 19, 1994·121 cites·10 claims
- 4087US4903346AMulti-part protective helmetDRAEGERWERK AG·Filed 1989·Granted Feb 27, 1990·108 cites·8 claims
- 4187US4832017ABreathing maskDRAEGERWERK AG·Filed 1987·Granted May 23, 1989·76 cites·4 claims
- 4287US4265237AApparatus for enhancing a person's breathing and/or artificial respirationDRAEGERWERK AG·Filed 1979·Granted May 5, 1981·183 cites·6 claims
- 4387US4172454AHeat and gas protection suitDRAEGERWERK AG·Filed 1977·Granted Oct 30, 1979·57 cites·11 claims
- 4486US7704374B2Electrochemical gas sensorDRAEGERWERK AG·Filed 2006·Granted Apr 27, 2010·11 cites·34 claims
- 4586US4799263ASpeaking and hearing system for breathing apparatusDRAEGERWERK AG·Filed 1987·Granted Jan 17, 1989·56 cites·8 claims
- 4686US4768543AValve for a gas vesselDRAEGERWERK AG·Filed 1987·Granted Sep 6, 1988·93 cites·5 claims
- 4786US4276877ARespiratory method and apparatusDRAEGERWERK AG·Filed 1979·Granted Jul 7, 1981·62 cites·6 claims
- 4886US4045192AMobile filtering apparatus for keeping patients under aseptic conditionsDRAEGERWERK AG·Filed 1976·Granted Aug 30, 1977·50 cites·9 claims
- 4985US5413097AFan-supported gas mask and breathing equipment with adjustable fan outputDRAEGERWERK AG·Filed 1993·Granted May 9, 1995·113 cites·10 claims
- 5085US5388613AValve with pressure compensationDRAEGERWERK AG·Filed 1993·Granted Feb 14, 1995·57 cites·12 claims
Showing the top 50 of 581 patent records by PatentIndex Score.
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