Inventor · disambiguated record
Elizabeth R. Billman
Also filed as: BILLMAN ELIZABETH R
13 granted patents·282 citations·filing 1987–1995
93Inventor score
Files withKENNAMETAL INC13
Top patents by PatentIndex Score
13 records- 0184US5024976AAlumina-zirconia-silicon carbide-magnesia ceramic cutting toolsKENNAMETAL INC·Filed 1990·Granted Jun 18, 1991·64 cites·34 claims
- 0283US4801510AAlumina coated silcon carbide whisker-alumina compositionKENNAMETAL INC·Filed 1987·Granted Jan 31, 1989·32 cites·40 claims
- 0382US4820663AWhisker reinforced ceramic and a method of clad/hot isostatic pressing sameKENNAMETAL INC·Filed 1987·Granted Apr 11, 1989·33 cites·50 claims
- 0481US4959331AAlumina-zirconia-silicon carbide-magnesia cutting toolsKENNAMETAL INC·Filed 1988·Granted Sep 25, 1990·31 cites·37 claims
- 0577US4852999ACutting toolKENNAMETAL INC·Filed 1987·Granted Aug 1, 1989·26 cites·17 claims
- 0675US5059564AAlumina-titanium carbide-silicon carbide compositionKENNAMETAL INC·Filed 1989·Granted Oct 22, 1991·25 cites·34 claims
- 0767US4959332AAlumina-zirconia-carbide whisker reinforced cutting toolsKENNAMETAL INC·Filed 1988·Granted Sep 25, 1990·18 cites·64 claims
- 0859US4965231AAlumina-zirconia-silicon carbide-magnesia compositions and articles made therefromKENNAMETAL INC·Filed 1988·Granted Oct 23, 1990·14 cites·28 claims
- 0958US4960735AAlumina-zirconia-silicon carbide-magnesia ceramicsKENNAMETAL INC·Filed 1988·Granted Oct 2, 1990·14 cites·21 claims
- 1054US4956315AWhisker reinforced ceramics and a method of clad/hot isostatic pressing sameKENNAMETAL INC·Filed 1988·Granted Sep 11, 1990·12 cites·29 claims
- 1145US5505751ACutting toolKENNAMETAL INC·Filed 1995·Granted Apr 9, 1996·6 cites·23 claims
- 1245US4925458ACutting toolKENNAMETAL INC·Filed 1988·Granted May 15, 1990·6 cites·11 claims
- 1330US5397370ACutting toolKENNAMETAL INC·Filed 1990·Granted Mar 14, 1995·1 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →