SMITH & LOVELESS, 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 847
 
  
 
B01D SEPARATION 7127
 
  
 
E03F SEWERS; CESSPOOLS39
 
  
 
B04C APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES 211
 
  
 
E05F DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING237
 
  
 
F04D NON-POSITIVE-DISPLACEMENT PUMPS272
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING271
 
  
 
B01F MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING 141
 
  
 
G01F MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME 158
 
  
 
G05B CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS 1100

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9886018 Pump control for operation on a variable pressure force mainSep 14, 15Feb 06, 18[G05B, G05D, F04D, G01F]
9739391 Check valve for a pipe sectionJan 06, 11Aug 22, 17[F16K, F16L]
9662666 Vortex-type grit chamberMay 09, 16May 30, 17[B04C, E03F, C02F, B01D]
9334178 Vortex-type grit chamberMar 15, 13May 10, 16[E03F, C02F, B01D]
8906233 Ring grit remover with vanesApr 16, 12Dec 09, 14[B01D]
8460560 Variable influent flow channel baffleJun 18, 10Jun 11, 13[B04C, B01D]
8394278 Dissolved air floatation with filter systemMar 12, 12Mar 12, 13[C02F, B01D]
8133396 Dissolved air floatation with filter systemJan 11, 07Mar 13, 12[C02F, B01D]
7971732 Grit trap for waste water systemNov 06, 06Jul 05, 11[B01D]
7441754 Apparatus for introducing a gas into a body of liquidOct 28, 05Oct 28, 08[B01F]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7331769 Pumping systemExpiredAug 06, 04Feb 19, 08[F04B]
2005/0271,518 Pumping method and systemAbandonedJun 04, 04Dec 08, 05[F04B]
6808165 Apparatus for mixing and introducing gas into a large body of liquidExpiredApr 30, 03Oct 26, 04[B01F]
6668625 Measurement of the level of settled particles within a fluid vesselExpiredOct 26, 01Dec 30, 03[G01N]
5160610 Radial header for dissolved air flotation systemsExpiredNov 13, 90Nov 03, 92[C02F, B01D]
5035583 Sewage pump priming systemExpiredMar 21, 90Jul 30, 91[F04D]
4861472 Apparatus for filtration of a suspensionExpiredJul 14, 88Aug 29, 89[B01D]
4767532 Apparatus for removing gritExpiredMay 21, 87Aug 30, 88[B01D]
4661047 Submersible pump guide rail arrangementExpiredMar 24, 86Apr 28, 87[F04B]
4614589 Method and apparatus for biological aerobic wastewater treatmentExpiredFeb 12, 85Sep 30, 86[C02F, B01D]
4594153 Sewage pumping stationExpiredFeb 21, 85Jun 10, 86[C02F]
4522233 Multi-position plug valveExpiredSep 29, 82Jun 11, 85[F16K]
4348158 Sewage pumping stationExpiredJul 07, 80Sep 07, 82[F04B]
4311281 Comminutor installationExpiredOct 09, 79Jan 19, 82[B02C]

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