DERRICK CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B07B SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, OR SIFTING OR BY USING GAS CURRENTS; OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL 602
 
  
 
B01D SEPARATION 15119
 
  
 
B04B CENTRIFUGES 423
 
  
 
H02K DYNAMO-ELECTRIC MACHINES 3104
 
  
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 2123
 
  
 
B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE 255
 
  
 
B29K INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS 130
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156
 
  
 
C22B PRODUCTION OR REFINING OF METALS 127

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2016/0303,611 POLYURETHANE SCREENJun 29, 16Oct 20, 16[B07B]
2016/0250,662 METHOD AND APPARATUSES FOR SCREENINGMay 06, 16Sep 01, 16[B07B]
2015/0197,827 METHODS AND SYSTEMS OF METAL SORPTION USING INTERSTAGE SCREENINGJan 13, 15Jul 16, 15[C22B, B01D]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9914153 Method and apparatuses for screeningMay 06, 16Mar 13, 18[B07B]
9908150 Polyurethane screenJun 29, 16Mar 06, 18[B07B]
9884344 Injection molded screening apparatuses and methodsJul 05, 16Feb 06, 18[B29C, B29D, B07B, B29K]
9884345 Method and apparatuses for screeningMay 19, 16Feb 06, 18[B07B]
9718008 Apparatus, system and methods to divide flowMar 12, 14Aug 01, 17[B07B, B01D]
9409209 Injection molded screening apparatuses and methodsMay 02, 14Aug 09, 16[B29D, B07B]
9403192 Polyurethane screenMar 19, 15Aug 02, 16[B07B]
9375756 Polyurethane vibratory screenMar 19, 15Jun 28, 16[B29C, B07B, B29K, B29L]
9370797 Method and apparatuses for screeningOct 23, 14Jun 21, 16[B07B]
9370798 Method and apparatuses for screeningFeb 10, 15Jun 21, 16[B07B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2010/0071,194 Ultrasonic system and method for affixing a screen sub-assembly to a plateAbandonedSep 08, 08Mar 25, 10[H05K]
2007/0074,999 Vibratory screening machine for earth drilling installationAbandonedDec 07, 06Apr 05, 07[B07B]
7025210 Method and apparatus for attenuating sound from vibratory screening machinesExpiredApr 17, 03Apr 11, 06[B07B]
2005/0133,465 Vibratory screen assembly and method of manufactureAbandonedOct 29, 04Jun 23, 05[B01D]
2005/0082,236 Vibratory screening machine with suction and method for screening a slurryAbandonedOct 29, 04Apr 21, 05[B01D]
6153041 Screen assembly for vibratory screening machine and method of fabrication thereofExpiredFeb 04, 99Nov 28, 00[B32B]
5673797 Screen assembly for vibratory screening machine and method of fabrication thereofExpiredMar 29, 95Oct 07, 97[B07B]
4882054 Vibratory screening machine with tiltable screen frame and adjustable discharge weirExpiredAug 22, 88Nov 21, 89[B01D]
4857176 Reinforced molded polyurethane vibratory screenExpiredJun 17, 88Aug 15, 89[B07B]

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