Inventor · disambiguated record
Donald K. Frerichs
Also filed as: FRERICHS DONALD K · FRERICHS DONALD KARL
5 granted patents·398 citations·filing 1990–2005
85Inventor score
Top patents by PatentIndex Score
5 records- 0193US7113890B2Method and apparatus for detecting faults in steam generator system components and other continuous processesABB INC·Filed 2004·Granted Sep 26, 2006·92 cites·14 claims
- 0293US6865511B2Process and device for evaluating the performance of a process control systemABB INC·Filed 2004·Granted Mar 8, 2005·136 cites·18 claims
- 0392US5175678AMethod and procedure for neural control of dynamic processesELSAG INT BV·Filed 1990·Granted Dec 29, 1992·151 cites·1 claims
- 0480US7225109B2Method and apparatus to diagnose mechanical problems in machineryABB INC·Filed 2005·Granted May 29, 2007·12 cites·18 claims
- 0557US6799143B1Process and device for evaluating the performance of a process control systemABB INC·Filed 2002·Granted Sep 28, 2004·7 cites·30 claims
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