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Udo K. R. Fischer
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Vallingby, SE
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Patents Grants
last 30 patents
Information
Patent Grant
Rock drill bit and cutting inserts
Patent number
6,119,798
Issue date
Sep 19, 2000
Sandvik AB
Udo Fischer
E21 - EARTH DRILLING MINING
Information
Patent Grant
Roll for hot rolling with increased resistance to thermal cracking...
Patent number
5,902,942
Issue date
May 11, 1999
Sandvik AB
Carl-Johan Maderud
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Rock drill bit and cutting inserts
Patent number
5,881,828
Issue date
Mar 16, 1999
Sandvik AB
Udo Fischer
E21 - EARTH DRILLING MINING
Information
Patent Grant
Cemented carbide body with increased wear resistance
Patent number
5,856,626
Issue date
Jan 5, 1999
Sandvik AB
Udo Fischer
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Cemented carbide body for rock drilling mineral cutting and highway...
Patent number
5,718,948
Issue date
Feb 17, 1998
Sandvik AB
Stefan S. O. Ederyd
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Diamond tools for rock drilling, metal cutting and wear part applic...
Patent number
5,624,068
Issue date
Apr 29, 1997
Sandvik AB
Mats G. Waldenstrom
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Asymmetrical button insert for rock drilling
Patent number
D371374
Issue date
Jul 2, 1996
Sandvik AB
Udo Fischer
D15 - Machines not elsewhere specified
Information
Patent Grant
Asymmetrical button insert for rock drilling
Patent number
D371146
Issue date
Jun 25, 1996
Sandvik AB
Udo Fischer
D15 - Machines not elsewhere specified
Information
Patent Grant
Method of making metal composite materials
Patent number
5,505,902
Issue date
Apr 9, 1996
Sandvik AB
Udo Fischer
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Diamond tools for rock drilling, metal cutting and wear part applic...
Patent number
5,496,638
Issue date
Mar 5, 1996
Sandvik AB
Mats G. Waldenstro/ m
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Cemented carbide body with extra tough behavior
Patent number
5,453,241
Issue date
Sep 26, 1995
Sandvik AB
Jan Akerman
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Cemented carbide body with increased wear resistance
Patent number
5,413,869
Issue date
May 9, 1995
Sandvik AB
E. Torbjorn Hartzell
E21 - EARTH DRILLING MINING
Information
Patent Grant
Cemented carbide body used preferably for abrasive rock drilling an...
Patent number
5,401,461
Issue date
Mar 28, 1995
Sandvik AB
E. Torbjorn Hartzell
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Tools for percussive and rotary crushing rock drilling provided wit...
Patent number
5,335,738
Issue date
Aug 9, 1994
Sandvik AB
Mats G. Waldenstrom
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method of making a cemented carbide body for tools and wear parts
Patent number
5,333,520
Issue date
Aug 2, 1994
Sandvik AB
Udo K. Fischer
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Cemented carbide body used preferably for abrasive rock drilling an...
Patent number
5,286,549
Issue date
Feb 15, 1994
Sandvik AB
E. Torbjorn Hartzell
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Cemented carbide body with extra tough behavior
Patent number
5,279,901
Issue date
Jan 18, 1994
Sandvik AB
Jan Akerman
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Tools for cutting rock drilling
Patent number
5,217,081
Issue date
Jun 8, 1993
Sandvik AB
Mats G. Waldenstrom
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Diamond rock tools for percussive and rotary crushing rock drilling
Patent number
5,154,245
Issue date
Oct 13, 1992
Sandvik AB
Mats G. Waldenstrom
E21 - EARTH DRILLING MINING
Information
Patent Grant
Cemented carbide body with a binder phase gradient and method of ma...
Patent number
4,820,482
Issue date
Apr 11, 1989
Santrade Limited
Udo K. R. Fischer
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Cemented carbide tool
Patent number
4,764,255
Issue date
Aug 16, 1988
Sandvik AB
Udo K. R. Fischer
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Cemented carbide body used preferably for rock drilling and mineral...
Patent number
4,743,515
Issue date
May 10, 1988
Santrade Limited
Udo K. R. Fischer
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Weldable wear part with high wear resistance
Patent number
4,576,875
Issue date
Mar 18, 1986
Santrade Ltd.
Olle G. Olsson
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Composite body consisting of cemented carbide and cast alloy
Patent number
4,119,459
Issue date
Oct 10, 1978
Sandvik Aktiebolag
Sven Karl Gustav Ekemar
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR