RG Delaware, Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01D SEPARATION 23111
 
  
 
B01F MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING 141
 
  
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 154
 
  
 
G01L MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE 155
 
  
 
2301 FLUID DISTRIBUTION EQUIPMENT149

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8992774 Flume system for a filter system including at least one filter having a filter bed that is periodically washed with liquid, gas or a combination thereofNov 16, 12Mar 31, 15[B01D]
8333889 Flume system for a filter system including at least one filter having a filter bed that is periodically washed with liquid, gas or a combination thereofMay 29, 09Dec 18, 12[B01D]
8277665 Method of washing a particulate filter bed using an underdrainNov 08, 11Oct 02, 12[B01D]
8070946 Underdrain for a filter system for filtering water or wastewater and a method of washing the filter systemSep 14, 07Dec 06, 11[B01D]
7921697 Method and apparatus for monitoring an underdrain of a filter systemJun 03, 10Apr 12, 11[B01D]
7758750 Flume for a filter system including at least one filter having a filter bed that is periodically washed with liquid, gas or a combination thereofAug 19, 05Jul 20, 10[B01D]
7754089 Method and apparatus for monitoring an underdrain of a filter systemJan 27, 06Jul 13, 10[B01D]
D565148 UnderdrainApr 25, 06Mar 25, 08[2301]
7288194 Underdrain systemJan 20, 06Oct 30, 07[B01D]
D519601 UnderdrainSep 17, 04Apr 25, 06[]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8518266 Dissolved air flotation clarifierExpiredNov 16, 09Aug 27, 13[C02F]
8409437 Underdrain systemExpiredNov 04, 11Apr 02, 13[B01D]
8052870 Underdrain systemExpiredJun 22, 07Nov 08, 11[B01D]
8052871 Underdrain systemExpiredMay 03, 05Nov 08, 11[B01D]
7927485 System for filtering water or wastewaterExpiredJun 02, 08Apr 19, 11[C02F]
7922903 System and method for uniformly distributing a fluid through a filter bed in a filterExpiredNov 30, 06Apr 12, 11[B01D]
7820043 Underdrain systemExpiredApr 10, 06Oct 26, 10[B01D]
7771597 Filter systemExpiredFeb 12, 07Aug 10, 10[B01D]
7736506 System and method for uniformly distributing a fluid through a filter bed in a filterExpiredOct 27, 06Jun 15, 10[B01D]
7481930 Filter having a filter layer that forms a protective barrier to prevent clogging of a gravel-less underdrain and method of making the sameExpiredJul 29, 05Jan 27, 09[B01D]
2008/0230,474 System and method for filtering water and/or wastewaterAbandonedMar 23, 07Sep 25, 08[C02F, B01D]
7288193 Apparatus for directing fluids through a filter systemExpiredJan 23, 06Oct 30, 07[B01D]
2007/0210,017 Filter system for filtering water or wastewater and a method of operating the filter systemAbandonedMar 08, 06Sep 13, 07[B01D]
7213712 System for settling solids or other impurities from water or wastewater and associated methodsExpiredFeb 04, 05May 08, 07[B01D]
2006/0272,679 Method and apparatus for pretreating filter media prior to installation of the filter media in a filterAbandonedJun 06, 05Dec 07, 06[B08B]
7014176 Fluid distribution system and associated methodsExpiredApr 14, 03Mar 21, 06[B01F]
6998046 Filter system and methods of operating the sameExpiredAug 09, 02Feb 14, 06[B01D]
6989096 Apparatus for directing fluids through a filter systemExpiredMay 16, 03Jan 24, 06[B01D]
6942795 Modular filter system and method of repairing and/or replacing components thereofExpiredJan 31, 03Sep 13, 05[B01D]
6616852 Modular filter systemExpiredJun 28, 01Sep 09, 03[B01D]

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