Assignee
PURITAN BENNETT CORP
US·115 granted patents·16,794 citations·filing 1974–1997
Top patents by PatentIndex Score
115 records- 0198US5438980AInhalation/exhalation respiratory phase detection circuitPURITAN BENNETT CORP·Filed 1993·Granted Aug 8, 1995·325 cites·27 claims
- 0298US5407174AProportional electropneumatic solenoid-controlled valvePURITAN BENNETT CORP·Filed 1994·Granted Apr 18, 1995·224 cites·6 claims
- 0398US5301921AProportional electropneumatic solenoid-controlled valvePURITAN BENNETT CORP·Filed 1990·Granted Apr 12, 1994·216 cites·17 claims
- 0498US4954799AProportional electropneumatic solenoid-controlled valvePURITAN BENNETT CORP·Filed 1989·Granted Sep 4, 1990·253 cites·18 claims
- 0597US5443075AFlow measuring apparatusPURITAN BENNETT CORP·Filed 1993·Granted Aug 22, 1995·271 cites·18 claims
- 0697US5319540ASystem and method for controlling a periodically actuated ventilation flow systemPURITAN BENNETT CORP·Filed 1993·Granted Jun 7, 1994·202 cites·2 claims
- 0797US4752089AConnector means providing fluid-tight but relatively rotatable jointPURITAN BENNETT CORP·Filed 1987·Granted Jun 21, 1988·183 cites·24 claims
- 0896US5549106AInspiratory airway pressure system using constant pressure and measuring flow signals to determine airway patencyPURITAN BENNETT CORP·Filed 1993·Granted Aug 27, 1996·456 cites·22 claims
- 0996US5517983ACompliance meter for respiratory therapyPURITAN BENNETT CORP·Filed 1992·Granted May 21, 1996·358 cites·26 claims
- 1096US5368019ASystem and method for operating a respirator compressor system under low voltage conditionsPURITAN BENNETT CORP·Filed 1992·Granted Nov 29, 1994·178 cites·6 claims
- 1196US4921642AHumidifier module for use in a gas humidification assemblyPURITAN BENNETT CORP·Filed 1988·Granted May 1, 1990·510 cites·35 claims
- 1296US4782832ANasal puff with adjustable sealing meansPURITAN BENNETT CORP·Filed 1987·Granted Nov 8, 1988·1.5k cites·12 claims
- 1395US5664566AQuick-donning full face oxygen mask with inflatable harness and soft foldable lensPURITAN BENNETT CORP·Filed 1994·Granted Sep 9, 1997·143 cites·20 claims
- 1495US5242315AElectrical-optical hybrid connector plugPURITAN BENNETT CORP·Filed 1992·Granted Sep 7, 1993·198 cites·6 claims
- 1595US5109452AElectrical-optical hybrid connectorPURITAN BENNETT CORP·Filed 1990·Granted Apr 28, 1992·174 cites·7 claims
- 1695US4989599ADual lumen cannulaPURITAN BENNETT CORP·Filed 1989·Granted Feb 5, 1991·500 cites·14 claims
- 1794US5660171ASystem and method for flow triggering of pressure supported ventilation by comparison of inhalation and exhalation flow ratesPURITAN BENNETT CORP·Filed 1996·Granted Aug 26, 1997·396 cites·11 claims
- 1894US5466134AScroll compressor having idler cranks and strengthening and heat dissipating ribsPURITAN BENNETT CORP·Filed 1994·Granted Nov 14, 1995·80 cites·30 claims
- 1994US5161525ASystem and method for flow triggering of pressure supported ventilationPURITAN BENNETT CORP·Filed 1990·Granted Nov 10, 1992·419 cites·16 claims
- 2093US5134995AInspiratory airway pressure system with admittance determining apparatus and methodPURITAN BENNETT CORP·Filed 1990·Granted Aug 4, 1992·429 cites·19 claims
- 2193US4938212AInspiration oxygen saverPURITAN BENNETT CORP·Filed 1987·Granted Jul 3, 1990·373 cites·3 claims
- 2292US5440337AMulti-camera closed circuit television system for aircraftPURITAN BENNETT CORP·Filed 1993·Granted Aug 8, 1995·106 cites·1 claims
- 2392US5390666ASystem and method for flow triggering of breath supported ventilationPURITAN BENNETT CORP·Filed 1993·Granted Feb 21, 1995·365 cites·15 claims
- 2492US5259373AInspiratory airway pressure system controlled by the detection and analysis of patient airway soundsPURITAN BENNETT CORP·Filed 1992·Granted Nov 9, 1993·313 cites·15 claims
- 2590US5399119AAir valve device having flush closing nozzlePURITAN BENNETT CORP·Filed 1993·Granted Mar 21, 1995·103 cites·6 claims
- 2690US5325861AMethod and apparatus for measuring a parameter of a gas in isolation from gas pressure fluctuationsPURITAN BENNETT CORP·Filed 1992·Granted Jul 5, 1994·177 cites·14 claims
- 2790US4915106ACrew oxygen mask with pneumatic comfort adjustmentPURITAN BENNETT CORP·Filed 1988·Granted Apr 10, 1990·156 cites·9 claims
- 2890US4883055AArtificially induced blood pulse for use with a pulse oximeterPURITAN BENNETT CORP·Filed 1988·Granted Nov 28, 1989·312 cites·5 claims
- 2989US5338516AChemical oxygen generatorPURITAN BENNETT CORP·Filed 1992·Granted Aug 16, 1994·43 cites·13 claims
- 3089US5231979AHumidifier for CPAP devicePURITAN BENNETT CORP·Filed 1992·Granted Aug 3, 1993·337 cites·6 claims
- 3189US5057822AMedical gas alarm systemPURITAN BENNETT CORP·Filed 1990·Granted Oct 15, 1991·319 cites·9 claims
- 3289US4706664AInspiration oxygen saverPURITAN BENNETT CORP·Filed 1986·Granted Nov 17, 1987·274 cites·16 claims
- 3388US5813399ASystem and method for closed loop airway pressure control during the inspiratory cycle of a breath in a patient ventilator using the exhalation valve as a microcomputer-controlled relief valvePURITAN BENNETT CORP·Filed 1997·Granted Sep 29, 1998·282 cites·15 claims
- 3488US5404297AAircraft reading lightPURITAN BENNETT CORP·Filed 1994·Granted Apr 4, 1995·120 cites·8 claims
- 3587US5934274AGas mixing apparatus for a ventilatorPURITAN BENNETT CORP·Filed 1997·Granted Aug 10, 1999·202 cites·36 claims
- 3687US5664560AGas mixing apparatus for a ventilatorPURITAN BENNETT CORP·Filed 1996·Granted Sep 9, 1997·201 cites·18 claims
- 3787US5313820AUltrasonic gas measuring devicePURITAN BENNETT CORP·Filed 1993·Granted May 24, 1994·54 cites·10 claims
- 3887US4323064AVolume ventilatorPURITAN BENNETT CORP·Filed 1979·Granted Apr 6, 1982·289 cites·44 claims
- 3986US5845636AMethod and apparatus for maintaining patient airway patencyPURITAN BENNETT CORP·Filed 1996·Granted Dec 8, 1998·251 cites·28 claims
- 4086US5632270AMethod and apparatus for control of lung ventilator exhalation circuitPURITAN BENNETT CORP·Filed 1994·Granted May 27, 1997·276 cites·10 claims
- 4186US5596984ALung ventilator safety circuitPURITAN BENNETT CORP·Filed 1994·Granted Jan 28, 1997·240 cites·7 claims
- 4286US5452621AUltrasonic gas measuring device incorporating efficient displayPURITAN BENNETT CORP·Filed 1994·Granted Sep 26, 1995·71 cites·2 claims
- 4386US5383449AVentilator control system for mixing and delivery of gasPURITAN BENNETT CORP·Filed 1993·Granted Jan 24, 1995·266 cites·8 claims
- 4486US5369979AUltrasonic gas measuring device incorporating efficient displayPURITAN BENNETT CORP·Filed 1994·Granted Dec 6, 1994·53 cites·7 claims
- 4586US5198147AChemical oxygen generatorPURITAN BENNETT CORP·Filed 1991·Granted Mar 30, 1993·36 cites·13 claims
- 4686US5166990AMultiple optical fiber event sensor and method of manufacturePURITAN BENNETT CORP·Filed 1991·Granted Nov 24, 1992·86 cites·57 claims
- 4786US4374521ASqueeze bag type resuscitator apparatusPURITAN BENNETT CORP·Filed 1980·Granted Feb 22, 1983·66 cites·13 claims
- 4884US5299568AMethod for controlling mixing and delivery of respiratory gasPURITAN BENNETT CORP·Filed 1993·Granted Apr 5, 1994·256 cites·4 claims
- 4984US5271389AVentilator control system that generates, measures, compares, and corrects flow ratesPURITAN BENNETT CORP·Filed 1992·Granted Dec 21, 1993·207 cites·9 claims
- 5084US5072737AMethod and apparatus for metabolic monitoringPURITAN BENNETT CORP·Filed 1989·Granted Dec 17, 1991·307 cites·19 claims
Showing the top 50 of 115 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when PURITAN BENNETT CORP files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →