Inventor · disambiguated record
Ralph A. Chappa
Also filed as: CHAPPA RALPH A
74 granted patents·23 pending applications·3,642 citations·filing 1998–2023
99Inventor score
Top patents by PatentIndex Score
97 records- 0199USRE40722EMethod and apparatus for coating of substratesSURMODICS INC·Filed 2007·Granted Jun 9, 2009·76 cites·12 claims
- 0299US6344035B1Bioactive agent release coatingSURMODICS INC·Filed 2000·Granted Feb 5, 2002·573 cites·39 claims
- 0398US8039524B2Reagent and method for providing coatings on surfacesSURMODICS INC·Filed 2010·Granted Oct 18, 2011·65 cites·8 claims
- 0498US7736689B2Reagent and method for providing coatings on surfacesSURMODICS INC·Filed 2007·Granted Jun 15, 2010·73 cites·18 claims
- 0598US7709049B2Methods, devices, and coatings for controlled active agent releaseSURMODICS INC·Filed 2005·Granted May 4, 2010·72 cites·18 claims
- 0698US7442402B2Bioactive agent release coatingSURMODICS INC·Filed 2005·Granted Oct 28, 2008·51 cites·19 claims
- 0798US7348055B2Reagent and method for providing coatings on surfacesSURMODICS INC·Filed 2001·Granted Mar 25, 2008·117 cites·8 claims
- 0898US6562136B1Coating apparatus and methodSURMODICS INC·Filed 2000·Granted May 13, 2003·125 cites·20 claims
- 0998US6465178B2Target molecule attachment to surfacesSURMODICS INC·Filed 1999·Granted Oct 15, 2002·419 cites·16 claims
- 1098US6214901B1Bioactive agent release coatingSURMODICS INC·Filed 1999·Granted Apr 10, 2001·584 cites·31 claims
- 1197US7008667B2Bioactive agent release coatingSURMODICS INC·Filed 2002·Granted Mar 7, 2006·173 cites·27 claims
- 1296US6890583B2Bioactive agent release coatingSURMODICS INC·Filed 2001·Granted May 10, 2005·144 cites·32 claims
- 1395US7192484B2Advanced coating apparatus and methodSURMODICS INC·Filed 2002·Granted Mar 20, 2007·79 cites·51 claims
- 1494US7776382B2Advanced coating apparatus and methodSURMODICS INC·Filed 2006·Granted Aug 17, 2010·13 cites·18 claims
- 1594US6406754B2Coating process and apparatusSURMODICS INC·Filed 2001·Granted Jun 18, 2002·48 cites·9 claims
- 1694US6254921B1Coating process and apparatusSURMODICS INC·Filed 1999·Granted Jul 3, 2001·69 cites·17 claims
- 1793US8668667B2Double wall catheter for delivering therapeutic agentCHAPPA RALPH A·Filed 2011·Granted Mar 11, 2014·21 cites·21 claims
- 1893US7883749B2Method for coating an object with a graft polymer layerSURMODICS INC·Filed 2006·Granted Feb 8, 2011·11 cites·26 claims
- 1993US7669548B2Method and apparatus for coating of substratesSURMODICS INC·Filed 2006·Granted Mar 2, 2010·26 cites·20 claims
- 2092US8318263B2Method for coating an object with a graft polymer layerCARLSON MARK F·Filed 2010·Granted Nov 27, 2012·12 cites·20 claims
- 2191US7125577B2Method and apparatus for coating of substratesSURMODICS INC·Filed 2004·Granted Oct 24, 2006·47 cites·12 claims
- 2291US7097850B2Bioactive agent release coating and controlled humidity methodSURMODICS INC·Filed 2002·Granted Aug 29, 2006·76 cites·88 claims
- 2390US8021680B2Controlled release bioactive agent delivery deviceSURMODICS INC·Filed 2004·Granted Sep 20, 2011·32 cites·86 claims
- 2490US7824704B2Controlled release bioactive agent delivery deviceSURMODICS INC·Filed 2005·Granted Nov 2, 2010·46 cites·34 claims
- 2590US7550444B2Composition and method for preparing biocompatible surfacesSURMODICS INC·Filed 2005·Granted Jun 23, 2009·17 cites·22 claims
- 2690US6254634B1Coating compositionsSURMODICS INC·Filed 1998·Granted Jul 3, 2001·214 cites·71 claims
- 2789US10124088B2Lubricious medical device elementsSURMODICS INC·Filed 2015·Granted Nov 13, 2018·6 cites·8 claims
- 2889US8034369B2Controlled release bioactive agent delivery deviceSURMODICS INC·Filed 2005·Granted Oct 11, 2011·11 cites·33 claims
- 2989US7958840B2Method and apparatus for coating of substratesSURMODICS INC·Filed 2004·Granted Jun 14, 2011·49 cites·22 claims
- 3089US6709712B2Coating methodSURMODICS INC·Filed 2003·Granted Mar 23, 2004·44 cites·3 claims
- 3189US6669994B2Water-soluble coating agents bearing initiator groupsSURMODICS INC·Filed 2001·Granted Dec 30, 2003·68 cites·33 claims
- 3288US11819590B2Apparatus and methods for coating medical devicesSURMODICS INC·Filed 2020·Granted Nov 21, 2023·2 cites·20 claims
- 3388US10099041B2Apparatus and methods for coating medical devicesSURMODICS INC·Filed 2017·Granted Oct 16, 2018·7 cites·20 claims
- 3488US7833548B2Bioactive agent release coating and controlled humidity methodSURMODICS INC·Filed 2005·Granted Nov 16, 2010·13 cites·18 claims
- 3587US8246974B2Medical devices and methods for producing the sameCHAPPA RALPH A·Filed 2005·Granted Aug 21, 2012·13 cites·18 claims
- 3687US7087658B2Water-soluble coating agents bearing initiator groupsSURMODICS INC·Filed 2003·Granted Aug 8, 2006·49 cites·50 claims
- 3786US10058634B2Devices and methods for delivery of bioactive agentsCHAPPA RALPH A·Filed 2010·Granted Aug 28, 2018·9 cites·8 claims
- 3886US9623215B2Apparatus and methods for coating medical devicesSURMODICS INC·Filed 2016·Granted Apr 18, 2017·6 cites·10 claims
- 3985US10507309B2Apparatus and methods for coating medical devicesSURMODICS INC·Filed 2018·Granted Dec 17, 2019·4 cites·20 claims
- 4085US9827401B2Apparatus and methods for coating medical devicesSURMODICS INC·Filed 2014·Granted Nov 28, 2017·6 cites·22 claims
- 4185US8927000B2Lipid coating for medical devices delivering bioactive agentCHAPPA RALPH A·Filed 2011·Granted Jan 6, 2015·11 cites·17 claims
- 4285US7041174B2Grafting apparatus and method of usingSUNMODICS INC·Filed 2003·Granted May 9, 2006·23 cites·24 claims
- 4383US11027049B2Devices and methods for delivery of bioactive agentsSURMODICS INC·Filed 2018·Granted Jun 8, 2021·3 cites·13 claims
- 4483US9295820B2Method and apparatus for coating balloon cathetersCHAPPA RALPH A·Filed 2009·Granted Mar 29, 2016·2 cites·10 claims
- 4583US9283350B2Coating apparatus and methodsSURMODICS INC·Filed 2013·Granted Mar 15, 2016·15 cites·21 claims
- 4682US9427501B2Coatings with crystallized active agent(s) and methodsCHAPPA RALPH A·Filed 2009·Granted Aug 30, 2016·2 cites·7 claims
- 4782US8142836B2Multi-layered coatings and methods for controlling elution of active agentsCHAPPA RALPH A·Filed 2010·Granted Mar 27, 2012·5 cites·12 claims
- 4881US7550443B2Process and systems for biocompatible surfacesSURMODICS INC·Filed 2005·Granted Jun 23, 2009·7 cites·17 claims
- 4979US8166909B2Apparatus and methods for applying coatingsCHAPPA RALPH A·Filed 2006·Granted May 1, 2012·10 cites·16 claims
- 5079US7077910B2Linear rail coating apparatus and methodSURMODICS INC·Filed 2003·Granted Jul 18, 2006·24 cites·20 claims
Showing the top 50 of 97 patent records by PatentIndex Score.
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