SCHLUMBERGER INDUSTRIES, 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
 
  
 
H04B TRANSMISSION 1209

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5629875 Method and apparatus for interactively tuning frequency hopping transmitterApr 20, 95May 13, 97[H04B]
5293115 Method and system for sensing removal of a utility meter from its socketJun 17, 93Mar 08, 94[G01R]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5984375 Hose collar and method of use thereforExpiredJul 23, 97Nov 16, 99[F16L]
5896097 System for utility meter communications using a single RF frequencyExpiredMar 06, 96Apr 20, 99[G08C]
5852980 Fuel dispenser pallet deviceExpiredMay 13, 97Dec 29, 98[B65D]
5851385 Dry hydrant strainer with strainer hole pattern for achieving uniform flow ratesExpiredApr 30, 97Dec 22, 98[B01D]
5797421 Dry hydrant siphon assemblyExpiredJun 07, 95Aug 25, 98[E03B]
5650073 Dry hydrant strainer with strainer hole pattern for achieving uniform flow ratesExpiredNov 21, 95Jul 22, 97[B01D]
5588779 Sight, vent, and drain assembly for an underground tankExpiredJun 07, 95Dec 31, 96[G01F]
5509437 Dry hydrant check valveExpiredJan 12, 94Apr 23, 96[E03B]
5392507 Method of positioning magnetic heads on a turntableExpiredAug 20, 93Feb 28, 95[G11B]
D353444 Snap on cap for a dry fire hydrantExpiredMay 17, 91Dec 13, 94[]
D348924 Snap-in strainerExpiredMay 17, 91Jul 19, 94[]
5257643 Dry hydrantExpiredAug 07, 92Nov 02, 93[E03B]
5197334 Programmable compensation of bridge circuit thermal responseExpiredJun 04, 91Mar 30, 93[G01L]
5062302 Laminated semiconductor sensor with overpressure protectionExpiredAug 27, 90Nov 05, 91[G01L]
4965447 Chopper for staring infrared systemsExpiredJul 28, 88Oct 23, 90[G01D]
4924412 Integrated poly-phase power meterExpiredJun 25, 87May 08, 90[G01R]
D306609 Point-of-sale terminalExpiredDec 09, 86Mar 13, 90[]
4891990 Vortex flowmeter transducerExpiredNov 15, 88Jan 09, 90[G01F]
4876002 Reverse osmosis water purificaiton unitExpiredJun 13, 88Oct 24, 89[B01D]
4841781 Flow rectifier for vortex flowmeterExpiredDec 04, 87Jun 27, 89[F15D, G01F]

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