Process Systems, Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 1158

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5627759 Electrical energy meters having real-time power quality measurement and reporting capabilityMay 31, 95May 06, 97[G01R]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6059535 Pump with air purging and self-cleaning featuresExpiredJan 22, 98May 09, 00[F04B, F03B]
5147179 Turbine pump with multistage venting of lubricating fluid flowExpiredDec 08, 89Sep 15, 92[F01D]
4998464 Heat exchange device for foodExpiredJul 02, 90Mar 12, 91[A23G, A23C]
4817204 Optical communication apparatus and method for telephone supervisory and audio signalsExpiredJan 29, 87Mar 28, 89[H04B]
4801874 Method and apparatus for measuring electricityExpiredFeb 27, 87Jan 31, 89[G01R]
4686630 Load management control system and methodExpiredSep 27, 84Aug 11, 87[H02J, G06F]

Top Inventors for This Owner

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