ELSAG INTERNATIONAL B.V., A CORP. OF THE NETHERLANDS

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F22G SUPERHEATING OF STEAM 18
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 1205
 
  
 
G05B CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS 1100

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5750408 Method of modifying an automotive type oxygen sensor for use in an industrial process analyzerApr 14, 97May 12, 98[G01N]
5282130 Method and apparatus for obtaining process characteristics in a self-tuning controllerMay 20, 92Jan 25, 94[G05B]
5279263 Cascaded steam temperature control applied to a universal pressure boilerFeb 05, 93Jan 18, 94[F22G]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5410665 Process controller single memory chip shadowing techniqueExpiredJun 13, 94Apr 25, 95[G06F]
D354894 Dual in-line package reset switch toolExpiredFeb 08, 93Jan 31, 95[]
5369386 Removable magnetic zero/span actuator for a transmitterExpiredNov 13, 92Nov 29, 94[H01H]
5365548 Digital FSK transmitterExpiredMar 17, 93Nov 15, 94[H04L]
D351590 Process control equipment enclosureExpiredFeb 16, 93Oct 18, 94[]
5351510 Cover lock for pressure transmitterExpiredNov 13, 92Oct 04, 94[B65D]
5339335 Method and apparatus for digitally processing and filtering signals in industrial control applicationsExpiredDec 15, 92Aug 16, 94[H04B]
5330719 Automotive oxygen sensor for use in an industrial process analyzerExpiredJan 22, 90Jul 19, 94[G01N]
5311556 Digital FSK transmitter receiver and method of operating sameExpiredAug 30, 91May 10, 94[H04L]
D341095 Pressure transmitterExpiredMay 05, 92Nov 09, 93[]
5215111 Method of performance improvement for an I/P servoExpiredOct 30, 92Jun 01, 93[G05D]
5175678 Method and procedure for neural control of dynamic processesExpiredAug 15, 90Dec 29, 92[G05B]
5164894 Method of data entry into a plant loopExpiredApr 26, 90Nov 17, 92[G06F]
5160807 Method for RFI/EMI protection of electronic circuitryExpiredAug 08, 91Nov 03, 92[H05K]
5132916 Methodology for pH titration curve estimation for adaptive controlExpiredMay 21, 90Jul 21, 92[G06F]
D326235 Process command controllerExpiredJan 22, 90May 19, 92[]
5074987 Online energy flow measuring device and method for natural gasExpiredJan 24, 90Dec 24, 91[G01N]
5068545 Digital/frequency input for industrial control applicationsExpiredApr 20, 89Nov 26, 91[H03K, H01S]
5068618 Apparatus for measuring differential impedancesExpiredAug 15, 90Nov 26, 91[G01R]
5060132 Method of modeling and control for delignification of pulpingExpiredDec 07, 89Oct 22, 91[D12C]

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