Inventor · disambiguated record
Roelof Frederick De Graaf
Also filed as: DE GRAAF ROELOF FREDERICK
3 granted patents·28 citations·filing 2004–2011
66Inventor score
Technology areasG03F
Top patents by PatentIndex Score
3 records- 0190US7379155B2Lithographic apparatus and device manufacturing methodASML NETHERLANDS BV·Filed 2004·Granted May 27, 2008·28 cites·26 claims
- 0260US9097992B2Lithographic apparatus and device manufacturing methodKEMPER NICOLAAS RUDOLF·Filed 2011·Granted Aug 4, 2015·0 cites·20 claims
- 0353US8958051B2Lithographic apparatus, device manufacturing method and apparatus for de-gassing a liquidVERHAGEN MARTINUS CORNELIS MARIA·Filed 2011·Granted Feb 17, 2015·0 cites·19 claims
Join the waitlist — get patent alerts
Get an alert when Roelof Frederick 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 →