Inventor · disambiguated record
Ronald J. Keller
Also filed as: KELLER RONALD J · KELLER RONALD JAMES
6 granted patents·100 citations·filing 1975–2001
83Inventor score
Top patents by PatentIndex Score
6 records- 0189US6578623B2Ceramic core and method of makingHOWMET RES CORP·Filed 2001·Granted Jun 17, 2003·30 cites·2 claims
- 0286US6749006B1Method of making investment casting moldsHOWMET RES CORP·Filed 2000·Granted Jun 15, 2004·21 cites·10 claims
- 0380US4962069AHighly densified bodies from preceramic polysilazanes filled with silicon carbide powdersDOW CORNING·Filed 1988·Granted Oct 9, 1990·32 cites·48 claims
- 0465US6494250B1Impregnated alumina-based core and methodHOWMET RES CORP·Filed 2001·Granted Dec 17, 2002·9 cites·10 claims
- 0541US6315941B1Ceramic core and method of makingHOWMET RES CORP·Filed 1999·Granted Nov 13, 2001·8 cites·7 claims
- 0618US4019065AMultiplexing document card reader with convex lensIBM·Filed 1975·Granted Apr 19, 1977·0 cites·6 claims
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