Inventor · disambiguated record
Richard Pfeiffer
Also filed as: PFEIFFER RICHARD · PFEIFFER RICHARD J
6 granted patents·136 citations·filing 1980–2001
86Inventor score
Top patents by PatentIndex Score
6 records- 0185US4488134ATransformer with windings completely embedded in cast resinTRANSFORMATOREN UNION AG·Filed 1982·Granted Dec 11, 1984·33 cites·9 claims
- 0281US6664197B2Process for etching thin-film layers of a workpiece used to form microelectronic circuits or componentsSEMITOOL INC·Filed 2001·Granted Dec 16, 2003·24 cites·20 claims
- 0376US4540536AMethod of manufacturing transformer windings embedded in casting resinTRANSFORMATOREN UNION AG·Filed 1983·Granted Sep 10, 1985·23 cites·11 claims
- 0463US6331490B1Process for etching thin-film layers of a workpiece used to form microelectric circuits or componentsSEMITOOL INC·Filed 1998·Granted Dec 18, 2001·25 cites·16 claims
- 0553US4349801ASingle-phase transformer with windings cast in casting resinTRANSFORMATOREN UNION AG·Filed 1980·Granted Sep 14, 1982·12 cites·6 claims
- 0650US6129493ATee-nut with globular shaped sleeveSIGMA TOOL & MACHINE·Filed 1999·Granted Oct 10, 2000·19 cites·8 claims
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