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Class Information
Number: 210/170
Name: Liquid purification or separation > Structural installation > Geographic (e.g., drainage ditch, septic, pond)
Description: Apparatus in which a separator is part of a system installed in the ground or related to a particular geographic feature, as a lake.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5017043 |
Method of an means for controlling precipitation in evaporation ponds |
May. 21, 1991 |
| 5015370 |
Apparatus and method for treating well water |
May. 14, 1991 |
| 5015372 |
Toxin containing perforated antifouling polymer nozzle grommet |
May. 14, 1991 |
| 5011604 |
Use of microalgae to remove pollutants from power plant discharges |
Apr. 30, 1991 |
| 5008075 |
Preventative maintenance system for underwater pipes |
Apr. 16, 1991 |
| 4997568 |
Process and apparatus for a biological reactor to purify water |
Mar. 5, 1991 |
| 4995969 |
Treatment system for landfill leachate |
Feb. 26, 1991 |
| 4992174 |
Fixed bed bioreactor remediation system |
Feb. 12, 1991 |
| 4990031 |
Treatment of mine tailings |
Feb. 5, 1991 |
| 4986699 |
Soil filtration and water drainage device |
Jan. 22, 1991 |
| 4984561 |
Container for disposing waste |
Jan. 15, 1991 |
| 4982794 |
Apparatus for oil/gas separation at an underwater well-head |
Jan. 8, 1991 |
| 4981080 |
Pump transport device |
Jan. 1, 1991 |
| 4973403 |
Suction head and strainer assembly |
Nov. 27, 1990 |
| 4971690 |
Waste water drainage and recovery system |
Nov. 20, 1990 |
| 4966654 |
Soil and groundwater remediation system |
Oct. 30, 1990 |
| 4959145 |
Gas baffle device for on-site waste disposal systems |
Sep. 25, 1990 |
| 4957622 |
Apparatus for removing sediment from ponds |
Sep. 18, 1990 |
| 4954266 |
Method and system for recovering free floating liquids from ground water |
Sep. 4, 1990 |
| 4952310 |
Intrachannel clarifier |
Aug. 28, 1990 |
| 4950394 |
Arrangement for driving out volatile impurities from ground water |
Aug. 21, 1990 |
| 4944872 |
Apparatus and method for containing and processing liquids and wastes |
Jul. 31, 1990 |
| 4943185 |
Combined drainage and waterproofing panel system for subterranean walls |
Jul. 24, 1990 |
| 4933089 |
Apparatus and process for paraffin abatement |
Jun. 12, 1990 |
| 4929348 |
Apparatus for carrying out extractions in subterranean well |
May. 29, 1990 |
| 4927163 |
Storm infilteration disk with filter |
May. 22, 1990 |
| 4919568 |
System for draining land areas through siphoning from a permeable catch basin |
Apr. 24, 1990 |
| 4911835 |
Seawater-dissolved metal collecting system |
Mar. 27, 1990 |
| 4911836 |
Submerged aeration system |
Mar. 27, 1990 |
| 4911849 |
Method and means of aeration-powered water flow using foil-shaped contour |
Mar. 27, 1990 |
| 4909948 |
Above ground waste water disposal system |
Mar. 20, 1990 |
| 4908129 |
Impervious layer formation process and landfill adsorption system |
Mar. 13, 1990 |
| 4906359 |
Solar activated water aeration station |
Mar. 6, 1990 |
| 4900433 |
Vertical oil separator |
Feb. 13, 1990 |
| 4897195 |
System and process for anaerobic digestion of waste materials |
Jan. 30, 1990 |
| 4895645 |
Anaerobic/aerobic filter plant |
Jan. 23, 1990 |
| 4892440 |
Water backup preventing system and monitoring system therefor |
Jan. 9, 1990 |
| 4892651 |
Filtering system for fish ponds |
Jan. 9, 1990 |
| 4892658 |
Wastewater treatment system |
Jan. 9, 1990 |
| 4892664 |
Decontamination of sites where organic compound contaminants endanger the water supply |
Jan. 9, 1990 |
| 4889447 |
Marine pollution containment device |
Dec. 26, 1989 |
| 4886605 |
All-purpose septic tank |
Dec. 12, 1989 |
| 4883589 |
System for removing contaminants from ground water |
Nov. 28, 1989 |
| 4882045 |
Dispersal apparatus with rotation valving |
Nov. 21, 1989 |
| 4882071 |
Method and apparatus for the in situ decontamination of underground water with the aid of solar energy |
Nov. 21, 1989 |
| 4880333 |
Subterranean fluid filtering and drainage system |
Nov. 14, 1989 |
| 4879046 |
Local water cleaning method for use in consecutive water areas |
Nov. 7, 1989 |
| 4876004 |
Topological separator |
Oct. 24, 1989 |
| 4872994 |
Method and apparatus for removing organic liquids from water |
Oct. 10, 1989 |
| 4867871 |
Sewage system discharge pump module |
Sep. 19, 1989 |
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