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Richard J. Petschauer
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Edina, MN, US
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last 30 patents
Information
Patent Grant
Method of fabricating IC chips with equation estimated peak crossta...
Patent number
5,596,506
Issue date
Jan 21, 1997
Unisys Corporation
Richard J. Petschauer
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of fabricating IC chips with equation estimated statistical...
Patent number
5,555,506
Issue date
Sep 10, 1996
Unisys Corporation
Richard J. Petschauer
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method of fabricating IC chips with table look-up estimated crossta...
Patent number
5,535,133
Issue date
Jul 9, 1996
Unisys Corporation
Richard J. Petschauer
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
CMOS static RAM testability
Patent number
5,361,232
Issue date
Nov 1, 1994
Unisys Corporation
Richard J. Petschauer
G11 - INFORMATION STORAGE
Information
Patent Grant
Test wafer for diagnosing flaws in an integrated circuit fabricatio...
Patent number
5,266,890
Issue date
Nov 30, 1993
Unisys Corporation
Cevat Kumbasar
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Clamping sense amplifier for bipolar ram
Patent number
4,899,311
Issue date
Feb 6, 1990
Unisys Corporation
Richard J. Petschauer
G11 - INFORMATION STORAGE
Information
Patent Grant
Error logging in semiconductor storage units
Patent number
3,999,051
Issue date
Dec 21, 1976
Sperry Rand Corporation
Richard J. Petschauer
G06 - COMPUTING CALCULATING COUNTING