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Class Information
Number: 405/36
Name: Hydraulic and earth engineering > Drainage or irrigation
Description: Method or apparatus including a step or means for either (a) collecting and removing surplus water from the soil, (b) applying water to the soil for agricultural purposes, or (c) the installation of apparatus for collecting and removing water from the soil or applying water to the soil.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5306317 |
Device and method for preserving putting green on a golf course |
Apr. 26, 1994 |
| 5294212 |
Irrigation systems |
Mar. 15, 1994 |
| 5290434 |
Effluent dosing septic system |
Mar. 1, 1994 |
| 5282694 |
Method of reclaiming abandoned settling ponds |
Feb. 1, 1994 |
| 5275506 |
Perforated drainpipe for railway decks |
Jan. 4, 1994 |
| 5263792 |
Finned subterranean drainage device and method for fabricating the same |
Nov. 23, 1993 |
| 5256834 |
Junction center |
Oct. 26, 1993 |
| 5255998 |
Multiple-layer net structure for fluid drainage, particularly for geotechnical use |
Oct. 26, 1993 |
| 5249887 |
Apparatus for control of liquids |
Oct. 5, 1993 |
| 5249885 |
Method or use of composite drywell |
Oct. 5, 1993 |
| 5248217 |
Process for forming notches in an irrigation lateral |
Sep. 28, 1993 |
| 5248225 |
Insulating drainage method and diverter for building foundations |
Sep. 28, 1993 |
| 5234286 |
Underground water reservoir |
Aug. 10, 1993 |
| 5232307 |
Hydraulic oscillating diverter |
Aug. 3, 1993 |
| 5230586 |
Method for the microbiological decontamination of soil |
Jul. 27, 1993 |
| 5228802 |
Underground drainage facility and operation method therefor |
Jul. 20, 1993 |
| 5228805 |
Water pressure reducing structure of a raft foundation bottom plate |
Jul. 20, 1993 |
| 5227068 |
Closed apparatus system for improving irrigation and method for its use |
Jul. 13, 1993 |
| 5227067 |
Apparatus for improving irrigation or cleaning water and method for its use |
Jul. 13, 1993 |
| 5224796 |
Flat sided irrigation tubing |
Jul. 6, 1993 |
| 5224795 |
Irrigation regulator |
Jul. 6, 1993 |
| 5222831 |
Tennis court irrigation |
Jun. 29, 1993 |
| 5223154 |
System for filtering liquids in a catch basin using filters in series and overflow channels |
Jun. 29, 1993 |
| 5219243 |
Method and apparatus for the hydrologic regulation of turf soil profiles |
Jun. 15, 1993 |
| 5217323 |
Method and apparatus for distributing graywater |
Jun. 8, 1993 |
| 5211511 |
Slurry distribution system using remote distributors |
May. 18, 1993 |
| 5201605 |
Positively closing nozzle and method of use in underground irrigation |
Apr. 13, 1993 |
| 5201609 |
Cellular landfill process and apparatus |
Apr. 13, 1993 |
| 5199198 |
Apparatus and method for snow disposal |
Apr. 6, 1993 |
| 5197824 |
System for protecting ground water under a dump |
Mar. 30, 1993 |
| 5195284 |
Drywell cover and drywell |
Mar. 23, 1993 |
| 5192426 |
Water reclamation system for landscape irrigation |
Mar. 9, 1993 |
| 5190404 |
Vertical drainage device |
Mar. 2, 1993 |
| 5163780 |
Method of modifying the soil permeability for septic systems |
Nov. 17, 1992 |
| 5163779 |
Drain apparatus |
Nov. 17, 1992 |
| 5163781 |
Field construction for a sports or other field |
Nov. 17, 1992 |
| 5161911 |
Water backup preventing system and monitoring system therefor |
Nov. 10, 1992 |
| 5160214 |
Irrigation system and irrigation method |
Nov. 3, 1992 |
| 5160460 |
Ventilation system for a liquid-filled basin |
Nov. 3, 1992 |
| 5156494 |
Moisture stabilization control system for foundations |
Oct. 20, 1992 |
| 5154353 |
Optimized weir construction for liquid distributors |
Oct. 13, 1992 |
| 5148628 |
Irrigation and percolation method and apparatus |
Sep. 22, 1992 |
| 5141360 |
Irrigation tubing |
Aug. 25, 1992 |
| 5131196 |
Drywell cover and drywell |
Jul. 21, 1992 |
| 5129757 |
Water removal system |
Jul. 14, 1992 |
| 5120158 |
Apparatus and method for heating a playfield |
Jun. 9, 1992 |
| 5120157 |
Tennis court irrigation |
Jun. 9, 1992 |
| 5106235 |
Watering system |
Apr. 21, 1992 |
| 5106231 |
Drainage channel having improved coping for receiving grate |
Apr. 21, 1992 |
| 5100258 |
Drainage quilt |
Mar. 31, 1992 |
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