Inventor · disambiguated record
Roelof Frederik De Graaf
Also filed as: DE GRAAF ROELOF FREDERIK
52 granted patents·4 pending applications·254 citations·filing 2004–2020
98Inventor score
Files withASML NETHERLANDS BV33STREEFKERK BOB7DE GRAAF ROELOF FREDERIK4JANSEN HANS2KEMPER NICOLAAS RUDOLF2
Top patents by PatentIndex Score
56 records- 0198US7433016B2Lithographic apparatus and device manufacturing methodASML NETHERLANDS BV·Filed 2005·Granted Oct 7, 2008·26 cites·21 claims
- 0297US9606449B2Lithographic apparatus and device manufacturing methodASML NETHERLANDS BV·Filed 2015·Granted Mar 28, 2017·5 cites·20 claims
- 0397US9405205B2Lithographic apparatus and in-line cleaning apparatusASML NETHERLANDS BV·Filed 2015·Granted Aug 2, 2016·16 cites·22 claims
- 0497US8031325B2Lithographic apparatus and device manufacturing methodASML NETHERLANDS BV·Filed 2010·Granted Oct 4, 2011·13 cites·20 claims
- 0596US7701550B2Lithographic apparatus and device manufacturing methodASML NETHERLANDS BV·Filed 2004·Granted Apr 20, 2010·45 cites·42 claims
- 0696US7602470B2Lithographic apparatus and device manufacturing methodASML NETHERLANDS BV·Filed 2005·Granted Oct 13, 2009·20 cites·21 claims
- 0793US9488923B2Lithographic apparatus and device manufacturing methodASML NETHERLANDS BV·Filed 2014·Granted Nov 8, 2016·4 cites·20 claims
- 0893US7468779B2Lithographic apparatus and device manufacturing methodASML NETHERLANDS BV·Filed 2005·Granted Dec 23, 2008·12 cites·33 claims
- 0992US9785061B2Lithographic apparatus and in-line cleaning apparatusASML NETHERLANDS BV·Filed 2016·Granted Oct 10, 2017·4 cites·21 claims
- 1091US8934082B2Lithographic apparatus and device manufacturing methodMERTENS JEROEN JOHANNES SOPHIA MARIA·Filed 2011·Granted Jan 13, 2015·5 cites·20 claims
- 1191US8587762B2Methods relating to immersion lithography and an immersion lithographic apparatusSTREEFKERK BOB·Filed 2008·Granted Nov 19, 2013·15 cites·29 claims
- 1290US9436097B2Lithographic apparatus and device manufacturing methodASML NETHERLANDS BV·Filed 2014·Granted Sep 6, 2016·3 cites·20 claims
- 1390US8446563B2Lithographic apparatus and device manufacturing methodKEMPER NICOLAAS RUDOLF·Filed 2009·Granted May 21, 2013·6 cites·24 claims
- 1489US10684554B2Lithographic apparatus and device manufacturing methodASML NETHERLANDS BV·Filed 2019·Granted Jun 16, 2020·1 cites·20 claims
- 1589US8115903B2Lithographic apparatus and device manufacturing methodSTREEFKERK BOB·Filed 2008·Granted Feb 14, 2012·5 cites·20 claims
- 1688US8248577B2Lithographic apparatus and device manufacturing methodSTREEFKERK BOB·Filed 2005·Granted Aug 21, 2012·9 cites·28 claims
- 1787US7929112B2Lithographic apparatus and device manufacturing methodASML NETHERLANDS BV·Filed 2008·Granted Apr 19, 2011·6 cites·16 claims
- 1887US7428038B2Lithographic apparatus, device manufacturing method and apparatus for de-gassing a liquidASML NETHERLANDS BV·Filed 2005·Granted Sep 23, 2008·8 cites·20 claims
- 1985US8243255B2Lithographic apparatus and in-line cleaning apparatusDE GRAAF ROELOF FREDERIK·Filed 2008·Granted Aug 14, 2012·6 cites·17 claims
- 2085US7633073B2Lithographic apparatus and device manufacturing methodASML NETHERLANDS BV·Filed 2005·Granted Dec 15, 2009·5 cites·30 claims
- 2184US10248033B2Lithographic apparatus and device manufacturing methodASML NETHERLANDS BV·Filed 2017·Granted Apr 2, 2019·1 cites·20 claims
- 2283US8823919B2Lithographic apparatus, removable member and device manufacturing methodDZIOMKINA NINA VLADIMIROVNA·Filed 2010·Granted Sep 2, 2014·5 cites·20 claims
- 2383US7928407B2Lithographic apparatus and device manufacturing methodASML NETHERLANDS BV·Filed 2006·Granted Apr 19, 2011·4 cites·15 claims
- 2481US9753380B2Lithographic apparatus and device manufacturing methodASML NETHERLANDS BV·Filed 2016·Granted Sep 5, 2017·1 cites·20 claims
- 2581US8659741B2Lithographic apparatus, removable member and device manufacturing methodDE GRAAF ROELOF FREDERIK·Filed 2010·Granted Feb 25, 2014·4 cites·20 claims
- 2681US8432531B2Lithographic apparatus and a method of operating the apparatusHOEKERD KORNELIS TIJMEN·Filed 2010·Granted Apr 30, 2013·6 cites·20 claims
- 2779US7378025B2Fluid filtration method, fluid filtered thereby, lithographic apparatus and device manufacturing methodASML NETHERLANDS BV·Filed 2005·Granted May 27, 2008·6 cites·18 claims
- 2877US10599054B2Lithographic apparatus and device manufacturing methodASML NETHERLANDS BV·Filed 2019·Granted Mar 24, 2020·0 cites·20 claims
- 2976US11016394B2Lithographic apparatus and device manufacturing methodASML NETHERLANDS BV·Filed 2020·Granted May 25, 2021·0 cites·21 claims
- 3076US8138486B2Lithographic apparatus and device manufacturing methodJANSEN HANS·Filed 2009·Granted Mar 20, 2012·2 cites·20 claims
- 3176US8004652B2Lithographic apparatus and device manufacturing methodASML NETHERLANDS BV·Filed 2008·Granted Aug 23, 2011·2 cites·26 claims
- 3274US8107053B2Lithographic apparatus, device manufacturing method and apparatus for de-gassing a liquidVERHAGEN MARTINUS CORNELIS MARIA·Filed 2008·Granted Jan 31, 2012·3 cites·20 claims
- 3373US10353296B2Lithographic apparatus and device manufacturing methodASML NETHERLANDS BV·Filed 2018·Granted Jul 16, 2019·0 cites·20 claims
- 3472US10705439B2Lithographic apparatus and device manufacturing methodASML NETHERLANDS BV·Filed 2018·Granted Jul 7, 2020·0 cites·20 claims
- 3572US9477153B2Lithographic apparatus and device manufacturing methodASML NETHERLANDS BV·Filed 2014·Granted Oct 25, 2016·1 cites·20 claims
- 3672US9036128B2Lithographic apparatus and in-line cleaning apparatusDE GRAAF ROELOF FREDERIK·Filed 2012·Granted May 19, 2015·1 cites·15 claims
- 3771US10331047B2Lithographic apparatus and device manufacturing methodASML NETHERLANDS BV·Filed 2017·Granted Jun 25, 2019·0 cites·20 claims
- 3870US10025196B2Lithographic apparatus and device manufacturing methodASML NETHERLANDS BV·Filed 2017·Granted Jul 17, 2018·0 cites·22 claims
- 3970US8860924B2Lithographic apparatus and device manufacturing methodSTREEFKERK BOB·Filed 2012·Granted Oct 14, 2014·1 cites·20 claims
- 4069US9904185B2Lithographic apparatus and device manufacturing methodASML NETHERLANDS BV·Filed 2016·Granted Feb 27, 2018·0 cites·20 claims
- 4168US8246838B2Fluid filtration method, fluid filtered thereby, lithographic apparatus and device manufacturing methodVERHAGEN MARTINUS CORNELIS MARIA·Filed 2011·Granted Aug 21, 2012·1 cites·6 claims
- 4266US9507278B2Lithographic apparatus and device manufacturing methodASML NETHERLANDS BV·Filed 2015·Granted Nov 29, 2016·0 cites·20 claims
- 4363US9229335B2Lithographic apparatus and device manufacturing methodSTREEFKERK BOB·Filed 2012·Granted Jan 5, 2016·0 cites·20 claims
- 4463US9146478B2Lithographic apparatus and device manufacturing methodSTREEFKERK BOB·Filed 2011·Granted Sep 29, 2015·0 cites·20 claims
- 4563US9081300B2Lithographic apparatus and device manufacturing methodSTREEFKERK BOB·Filed 2011·Granted Jul 14, 2015·0 cites·20 claims
- 4663US8755028B2Lithographic apparatus and device manufacturing methodKEMPER NICOLAAS RUDOLF·Filed 2011·Granted Jun 17, 2014·0 cites·23 claims
- 4761US10488759B2Lithographic apparatus and device manufacturing methodASML NETHERLANDS BV·Filed 2017·Granted Nov 26, 2019·0 cites·77 claims
- 4858US10451973B2Lithographic apparatus and device manufacturing methodASML NETHERLANDS BV·Filed 2015·Granted Oct 22, 2019·0 cites·74 claims
- 4956US8481978B2Lithographic apparatus and device manufacturing methodJANSEN HANS·Filed 2011·Granted Jul 9, 2013·0 cites·20 claims
- 5055US8687168B2Lithographic apparatus and device manufacturing methodDE GRAAF ROELOF FREDERIK·Filed 2011·Granted Apr 1, 2014·0 cites·20 claims
Showing the top 50 of 56 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Roelof Frederik De Graaf files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →