CH2M HILL, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 1441
 
  
 
C12M APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY 445
 
  
 
B01D SEPARATION 3131
 
  
 
A62D CHEMICAL MEANS FOR EXTINGUISHING FIRES; PROCESSES FOR MAKING HARMFUL CHEMICAL SUBSTANCES HARMLESS, OR LESS HARMFUL, BY EFFECTING A CHEMICAL CHANGE; COMPOSITION OF MATERIALS FOR COVERINGS OR CLOTHING FOR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; COMPOSITION OF MATERIALS FOR TRANSPARENT PARTS OF GAS-MASKS, RESPIRATORS, BREATHING BAGS OR HELMETS; COMPOSITION OF CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS214
 
  
 
B09C RECLAMATION OF CONTAMINATED SOIL 18
 
  
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF178
 
  
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 167
 
  
 
C12S PROCESSES USING ENZYMES OR MICRO-ORGANISMS TO LIBERATE, SEPARATE OR PURIFY A PRE-EXISTING COMPOUND OR COMPOSITION 16
 
  
 
E01D BRIDGES 114
 
  
 
E03F SEWERS; CESSPOOLS111

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9885647 Semi-dynamic leach test device and methods of making and usingApr 09, 15Feb 06, 18[G01N]
8742195 Aluminum phosphate ceramics for waste storageFeb 26, 04Jun 03, 14[G21F, C01B, C04B]
8721887 Method and system for treating wastewaterDec 07, 10May 13, 14[C02F]
8313921 Reclaimable hybrid bioreactorDec 10, 03Nov 20, 12[C05F, C12M]
8119003 Methods for reducing biosolids odorsDec 03, 08Feb 21, 12[C02F]
8105490 Low phosphorus water treatment systemsApr 15, 11Jan 31, 12[C02F]
7968760 Treatment of particulate biodegradable organic waste by thermal hydrolysis using condensate recycleMar 14, 08Jun 28, 11[A62D]
7927493 Low phosphorus water treatment methodsMay 12, 08Apr 19, 11[C02F]
7745679 Method of waste stabilization with dewatered chemically bonded phosphate ceramicsFeb 26, 04Jun 29, 10[A62D, B09B]
7645092 Treatment of in ground chromium ore processing residueMay 31, 07Jan 12, 10[B09C]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2011/0146,802 WATER INTAKE STRUCTUREAbandonedFeb 07, 11Jun 23, 11[F15D]
2010/0301,287 Process for Treating Spent Nuclear FuelAbandonedNov 20, 06Dec 02, 10[C09K]
2010/0101,774 Measurement and Control of Liquid Level in WellsAbandonedOct 29, 08Apr 29, 10[E21B]
2009/0130,013 METHODS AND SYSTEMS FOR ENHANCING MERCURY, SELENIUM AND HEAVY METAL REMOVAL FROM FLUE GASAbandonedJul 02, 08May 21, 09[C01B]
2008/0224,106 PROCESS FOR TREATING COMPOSITIONS CONTAINING URANIUM AND PLUTONIUMAbandonedSep 07, 07Sep 18, 08[C09K]
2008/0121,585 WATER TREATMENT USING DE-SUPERSATURATIONAbandonedNov 26, 07May 29, 08[C02F]
H002198 Multi-stage pyrolysis systems for treating chlorine contaminated wastesExpiredJul 30, 02Aug 07, 07[B22B]
2007/0098,501 IN-SITU TREATMENT OF IN GROUND CONTAMINATIONAbandonedMar 30, 06May 03, 07[B09C]
2007/0098,502 In-situ treatment of in ground contaminationAbandonedFeb 24, 06May 03, 07[B09C]
2007/0090,050 METHOD AND APPARATUS FOR TREATMENT OF A FLUID STREAMAbandonedDec 05, 06Apr 26, 07[B01D]
7103479 Method and system for evaluating water usageExpiredJan 14, 05Sep 05, 06[G06Q]
7062406 Method and system for water quality tradingExpiredNov 13, 03Jun 13, 06[]
7029201 Utility line bedding for storm water management and storm water management system and methodExpiredAug 28, 03Apr 18, 06[E02B]
7025884 Method and apparatus for treatment of a fluid systemExpiredDec 03, 03Apr 11, 06[G01D]
2005/0274,668 Method and apparatus for the treatment of particulate biodegradable organic wasteAbandonedJun 06, 05Dec 15, 05[C02F]
2005/0273,300 Method and system for water flow analysisAbandonedMay 24, 05Dec 08, 05[G06G]
2005/0209,817 Method and system for grading the internal condition of a pipeAbandonedApr 12, 04Sep 22, 05[G06F]
2005/0192,472 System and method for treatment of hazardous materials, e.g., unexploded chemical warfare ordinanceAbandonedApr 07, 04Sep 01, 05[A62D, B01D]
2005/0034,075 GIS-based emergency managementAbandonedJun 05, 03Feb 10, 05[H04M, G09G]
2005/0026,119 Career development frameworkAbandonedAug 01, 03Feb 03, 05[G09B, G06F]

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