Welker, Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 9197
 
  
 
C10J PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES 120
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 161
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING172
 
  
 
F16L PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL169
 
  
 
G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES 183
 
  
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 1110

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9651459 Gasoline blend spot sampling system and methodJan 14, 16May 16, 17[G01N]
9506842 Volumetric sample adjustment assembly located outside a liquid process lineJun 26, 14Nov 29, 16[G01N]
9410541 Liquid sample pump with integral self-cleaning filter elementJan 14, 14Aug 09, 16[F04B]
9255862 Gasoline blend spot sampling system and methodJan 31, 13Feb 09, 16[G01N]
8800394 Transportable liquid phase LNG sample apparatus and methodApr 19, 11Aug 12, 14[G01N]
8347694 LNG collection system and methodJul 15, 08Jan 08, 13[G01N]
8210058 LNG sampling cylinder and methodSep 19, 08Jul 03, 12[G01N]
8202331 Pump purge apparatus and methodOct 06, 08Jun 19, 12[C01B, C10J]
8127625 Sight glass with liquid separatorOct 01, 09Mar 06, 12[G01N]
8113070 Sight glass with a flow directing assemblyJun 12, 09Feb 14, 12[G01N]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2010/0319,468 UNBURNED FLARE GAS SAMPLE SYSTEMAbandonedJun 22, 09Dec 23, 10[G01N]
2010/0083,469 REUSABLE CARRYING HANDLE WITH A CABLE TIEAbandonedOct 06, 08Apr 08, 10[A47J, B65D]
2009/0137,165 NEWTONIAN THRUST COWL ARRAYAbandonedFeb 03, 09May 28, 09[B63H]

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