Inventor · disambiguated record
Roger Willis
Also filed as: WILLIS ROGER · WILLIS ROGER L
8 granted patents·2 pending applications·82 citations·filing 1979–2014
83Inventor score
Top patents by PatentIndex Score
10 records- 0181US5040003AMethod and apparatus for recording color with plural printheadsEASTMAN KODAK CO·Filed 1990·Granted Aug 13, 1991·67 cites·19 claims
- 0269US9617995B2Rotary piston pump with slip ring seals for improved fitting and synchronization of rotary pistonsNETZSCH PUMPEN & SYSTEME GMBH·Filed 2014·Granted Apr 11, 2017·2 cites·13 claims
- 0364US9028233B2Rotary piston pump and method for operating a rotary piston pumpNETZSCH PUMPEN & SYSTEME GMBH·Filed 2012·Granted May 12, 2015·1 cites·11 claims
- 0452US9617992B2Rotary piston pump with optimised inlets and outletsNETZSCH PUMPEN & SYSTEME GMBH·Filed 2014·Granted Apr 11, 2017·0 cites·14 claims
- 0544US9611850B2Method and device for fixing and synchronizing rotary pistons in a rotary piston pumpNETZSCH PUMPEN & SYSTEME GMBH·Filed 2014·Granted Apr 4, 2017·0 cites·6 claims
- 0644US2014360359A1Rotary PistonROLAND LIESSEL·Filed 2014·Application pending·0 cites
- 0737US2013129555A1Contact Element For Rotary Piston PumpLINDE HANS JUERGEN·Filed 2012·Application pending·0 cites
- 0836US4204140ASafety circuit for electronic flash apparatusEASTMAN KODAK CO·Filed 1979·Granted May 20, 1980·5 cites·9 claims
- 0932US5680167APrinting apparatus and method for tri-level color imagingEASTMAN KODAK CO·Filed 1992·Granted Oct 21, 1997·4 cites·7 claims
- 1029US4893926AFocusing for optical print headsEASTMAN KODAK CO·Filed 1987·Granted Jan 16, 1990·3 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →