Elizabeth R. Billman

Person

Pittsburgh, PA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Cutting tool
- Patent number 5,505,751
- Issue date Apr 9, 1996
- Kennametal Inc.
- Pankaj K. Mehrotra
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Cutting tool
- Patent number 5,397,370
- Issue date Mar 14, 1995
- Kennametal Inc.
- Pankaj K. Mehrotra
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Alumina-titanium carbide-silicon carbide composition
- Patent number 5,059,564
- Issue date Oct 22, 1991
- Kennametal Inc.
- Pankaj K. Mehrotra
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Alumina-zirconia-silicon carbide-magnesia ceramic cutting tools
- Patent number 5,024,976
- Issue date Jun 18, 1991
- Kennametal Inc.
- Pankaj K. Mehrotra
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Alumina-zirconia-silicon carbide-magnesia compositions and articles...
- Patent number 4,965,231
- Issue date Oct 23, 1990
- Kennametal Inc.
- Pankaj K. Mehrotra
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Alumina-zirconia-silicon carbide-magnesia ceramics
- Patent number 4,960,735
- Issue date Oct 2, 1990
- Kennametal Inc.
- Pankaj K. Mehrotra
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Alumina-zirconia-carbide whisker reinforced cutting tools
- Patent number 4,959,332
- Issue date Sep 25, 1990
- Kennametal Inc.
- Pankaj K. Mehrotra
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Alumina-zirconia-silicon carbide-magnesia cutting tools
- Patent number 4,959,331
- Issue date Sep 25, 1990
- Kennametal Inc.
- Pankaj K. Mehrotra
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Whisker reinforced ceramics and a method of clad/hot isostatic pres...
- Patent number 4,956,315
- Issue date Sep 11, 1990
- Kennametal Inc.
- Pankaj K. Mehrotra
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Cutting tool
- Patent number 4,925,458
- Issue date May 15, 1990
- Kennametal Inc.
- Pankaj K. Mehrotra
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Cutting tool
- Patent number 4,852,999
- Issue date Aug 1, 1989
- Kennametal Inc.
- Pankaj K. Mehrotra
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Whisker reinforced ceramic and a method of clad/hot isostatic press...
- Patent number 4,820,663
- Issue date Apr 11, 1989
- Kennametal Inc.
- Pankaj K. Mehrotra
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Alumina coated silcon carbide whisker-alumina composition
- Patent number 4,801,510
- Issue date Jan 31, 1989
- Kennametal Inc.
- Pankaj K. Mehrotra
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Elizabeth R. Billman

Person

Patents Grantslast 30 patents

Cutting tool

Cutting tool

Alumina-titanium carbide-silicon carbide composition

Alumina-zirconia-silicon carbide-magnesia ceramic cutting tools

Alumina-zirconia-silicon carbide-magnesia compositions and articles...

Alumina-zirconia-silicon carbide-magnesia ceramics

Alumina-zirconia-carbide whisker reinforced cutting tools

Alumina-zirconia-silicon carbide-magnesia cutting tools

Whisker reinforced ceramics and a method of clad/hot isostatic pres...

Cutting tool

Cutting tool

Whisker reinforced ceramic and a method of clad/hot isostatic press...

Alumina coated silcon carbide whisker-alumina composition