WEATHERFORD SWITZERLAND TRADING AND DEVELOPMENT GMBH

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E21B EARTH OR ROCK DRILLING 1086
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 7199
 
  
 
B08B CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL 256
 
  
 
B01L CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE 157
 
  
 
B65B MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING 163
 
  
 
F16J PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS149
 
  
 
F16L PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL169
 
  
 
F23J REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 116

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9588023 Sampling container for collection of fluidsMar 10, 15Mar 07, 17[G01N]
9341606 Apparatus for and method of gas analysisFeb 28, 14May 17, 16[G01N]
9291035 Wellbore cleaning apparatus and methodNov 21, 12Mar 22, 16[E21B]
9234822 Pressurized gas sampling apparatusOct 27, 11Jan 12, 16[G01N, B01L, B65B, F16J]
9005528 Sampling container for collection of fluidsMar 14, 12Apr 14, 15[G01N]
8002037 Downhole cleaning tool and method of useSep 04, 08Aug 23, 11[E21B]
7836947 Cleaning device for downhole toolsJun 19, 07Nov 23, 10[E21B]
7798230 Downhole toolMay 27, 08Sep 21, 10[E21B]
7757572 Pressurized gas sampling containerNov 12, 04Jul 20, 10[G01N]
7647846 Gas sampling apparatusApr 13, 01Jan 19, 10[G01N]

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Expired/Abandoned/Withdrawn Patents

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Top Inventors for This Owner

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