Inventor · disambiguated record
Perry David Lithgow
Also filed as: LITHGOW PERRY · LITHGOW PERRY D · LITHGOW PERRY DAVID
207 granted patents·9 pending applications·10,766 citations·filing 1996–2023
99Inventor score
Top patents by PatentIndex Score
216 records- 0199USRE44453EHumidifier with structure to prevent backflow of liquid through the humidifier inletVIRR ALEXANDER·Filed 2011·Granted Aug 27, 2013·104 cites·98 claims
- 0299US8042546B2Nasal assemblyRESMED LTD·Filed 2007·Granted Oct 25, 2011·132 cites·89 claims
- 0399US7900635B2Nasal assemblyRESMED LTD·Filed 2008·Granted Mar 8, 2011·129 cites·45 claims
- 0499USD585540SAir delivery deviceRESMED LTD·Filed 2007·Granted Jan 27, 2009·101 cites·1 claims
- 0599US7461656B2Nasal assemblyRESMED LTD·Filed 2006·Granted Dec 9, 2008·146 cites·39 claims
- 0699US7318437B2Nasal assemblyRESMED LTD·Filed 2004·Granted Jan 15, 2008·496 cites·41 claims
- 0799USD542912SMaskRESMED LTD·Filed 2004·Granted May 15, 2007·120 cites·1 claims
- 0899USD493884SFlow generator casing with humidifierRESMED LTD·Filed 2003·Granted Aug 3, 2004·132 cites·1 claims
- 0999USD493520SFlow generator casingRESMED LTD·Filed 2003·Granted Jul 27, 2004·152 cites·1 claims
- 1099USD492992SPortion of mask assemblyRESMED LTD·Filed 2003·Granted Jul 13, 2004·131 cites·1 claims
- 1199USD486907SFrame for mask assemblyRESMED LTD·Filed 2002·Granted Feb 17, 2004·130 cites·1 claims
- 1299USD468011SAir delivery deviceRESMED LTD·Filed 2002·Granted Dec 31, 2002·117 cites·1 claims
- 1399US6491034B1Gas delivery connection assemblyRESMED LTD·Filed 2000·Granted Dec 10, 2002·398 cites·19 claims
- 1498US11235115B2Breathable gas apparatus with humidifierResMed Pty Ltd·Filed 2021·Granted Feb 1, 2022·6 cites·23 claims
- 1598US8186352B2Nasal assemblyGUNARATNAM MICHAEL K·Filed 2007·Granted May 29, 2012·144 cites·79 claims
- 1698US7874293B2Nasal assemblyRESMED LTD·Filed 2004·Granted Jan 25, 2011·212 cites·101 claims
- 1798US7614398B2Humidifier with structure to prevent backflow of liquid through the humidifier inletRESMED LTD·Filed 2005·Granted Nov 10, 2009·113 cites·7 claims
- 1898USD560795SAir delivery deviceRESMED LTD·Filed 2007·Granted Jan 29, 2008·86 cites·1 claims
- 1998USD544598SAir delivery deviceRESMED LTD·Filed 2004·Granted Jun 12, 2007·75 cites·1 claims
- 2098US6935337B2Humidifier with structure to prevent backflow of liquid through the humidifier inletRESMED LTD·Filed 2002·Granted Aug 30, 2005·223 cites·22 claims
- 2198USD498527SHumidifier assemblyRESMED LTD·Filed 2003·Granted Nov 16, 2004·94 cites·1 claims
- 2298USD487311SAir delivery deviceRESMED LTD·Filed 2003·Granted Mar 2, 2004·111 cites·1 claims
- 2398USD486226SMask assemblyRESMED LTD·Filed 2002·Granted Feb 3, 2004·110 cites·1 claims
- 2498US6532961B1Forehead support for facial maskRESMED LTD·Filed 2000·Granted Mar 18, 2003·570 cites·38 claims
- 2598USD467335SAir delivery deviceRESMED LTD·Filed 2002·Granted Dec 17, 2002·122 cites·1 claims
- 2697US8985117B2Nasal assemblyGUNARATNAM MICHAEL K·Filed 2012·Granted Mar 24, 2015·49 cites·52 claims
- 2797US7958893B2Cushion for a respiratory mask assemblyRESMED LTD·Filed 2009·Granted Jun 14, 2011·113 cites·20 claims
- 2897USD604830SHumidifierRESMED LTD·Filed 2007·Granted Nov 24, 2009·44 cites·1 claims
- 2997US7523754B2Cushion for a respiratory mask assemblyRESMED LTD·Filed 2003·Granted Apr 28, 2009·297 cites·36 claims
- 3097USD561890SHumidifier for a flow generatorRESMED LTD·Filed 2007·Granted Feb 12, 2008·64 cites·1 claims
- 3197USD561891SHumidifier tub baseRESMED LTD·Filed 2007·Granted Feb 12, 2008·55 cites·1 claims
- 3297USD540940SFront face of headgear for respiratory maskRESMED LTD·Filed 2004·Granted Apr 17, 2007·50 cites·1 claims
- 3397USD493521SPortion of cushion clip for mask assemblyRESMED LTD·Filed 2003·Granted Jul 27, 2004·74 cites·1 claims
- 3497US6422238B1HeadgearRESMED LTD·Filed 2000·Granted Jul 23, 2002·448 cites·22 claims
- 3596USRE46571EHumidifier with structure to prevent backflow of liquid through the humidifier inletRESMED LTD·Filed 2016·Granted Oct 17, 2017·19 cites·85 claims
- 3696USD675730SAir delivery deviceRESMED LTD·Filed 2010·Granted Feb 5, 2013·48 cites·1 claims
- 3796US8286636B2Nasal assemblyGUNARATNAM MICHAEL K·Filed 2008·Granted Oct 16, 2012·74 cites·142 claims
- 3896USD659235SPositive airway pressure delivery deviceBERTINETTI MARK·Filed 2008·Granted May 8, 2012·77 cites·1 claims
- 3996US8020551B2Breathable gas apparatus with humidifierRESMED LTD·Filed 2010·Granted Sep 20, 2011·93 cites·40 claims
- 4096US7856980B2Forehead pad for respiratory maskRESMED LTD·Filed 2007·Granted Dec 28, 2010·103 cites·27 claims
- 4196USD614286SAir delivery deviceRESMED LTD·Filed 2008·Granted Apr 20, 2010·41 cites·1 claims
- 4296USD578204SHumidifier baseRESMED LTD·Filed 2007·Granted Oct 7, 2008·44 cites·1 claims
- 4396USD550349SFlow generatorRESMED LTD·Filed 2005·Granted Sep 4, 2007·54 cites·1 claims
- 4496USD546441SRight side headgear strap and yokeRESMED LTD·Filed 2006·Granted Jul 10, 2007·46 cites·1 claims
- 4596USD545961SLeft side headgear strap and yoke assemblyRESMED LTD·Filed 2006·Granted Jul 3, 2007·43 cites·1 claims
- 4696US7011090B2Elbow for mask assemblyRESMED LTD·Filed 2003·Granted Mar 14, 2006·238 cites·61 claims
- 4796USD496726SFront face of headgear for respiratory maskRESMED LTD·Filed 2002·Granted Sep 28, 2004·53 cites·1 claims
- 4896USD496098SSwivel elbow for mask assemblyRESMED LTD·Filed 2002·Granted Sep 14, 2004·58 cites·1 claims
- 4996USD476077SAir delivery deviceRESMED LTD·Filed 2002·Granted Jun 17, 2003·58 cites·1 claims
- 5095US11420006B2Humidifier and/or flow generator for CPAP deviceResMed Pty Ltd·Filed 2021·Granted Aug 23, 2022·2 cites·30 claims
Showing the top 50 of 216 patent records by PatentIndex Score.
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