| 9995033 | Wastewater-lifting system | Oct 10, 14 | Jun 12, 18 | KSB Aktiengesellschaft |
| 9962638 | Removable dewatering device | Aug 03, 16 | May 08, 18 | Not available |
| 9896833 | Flow control system | Apr 21, 16 | Feb 20, 18 | Not available |
| 9873069 | Wastewater lifting station | Jul 08, 14 | Jan 23, 18 | KSB AKTIENGESELLSCHAFT |
| 9850649 | Vortex flow type water surface control device for draining device | Dec 09, 11 | Dec 26, 17 | NIPPON KOEI CO., LTD., TOKYO METROPOLITAN GOVERNMENT, TOKYO METROPOLITAN SEWERAGE SERVICE CORPORATION, |
| 9850650 | Storm drain trap installation device | Aug 05, 16 | Dec 26, 17 | Not available |
| 9828758 | Sewer system | Nov 06, 14 | Nov 28, 17 | AIWELL HOLDING AS |
| 9771710 | System and method for treating contaminated water | Dec 22, 15 | Sep 26, 17 | WASSERWERK, INC. |
| 9772609 | Optimized hydromodification management with active stormwater controls | May 27, 14 | Sep 26, 17 | OPTIRTC, INC. |
| 9767975 | Multiple switch float switch apparatus having a magnetic coupling | Apr 07, 16 | Sep 19, 17 | Not available |
| 9739046 | Modular stormwater retention and management system | Jun 03, 16 | Aug 22, 17 | Not available |
| 9664020 | Water solution system | Mar 03, 15 | May 30, 17 | SHARMA, AMIT |
| 9631356 | Combined sewer overflow warning and prevention system | Apr 30, 13 | Apr 25, 17 | GLOBALFOUNDRIES INC. |
| 9625914 | Method for configuring a vortex flow control device | Jul 25, 13 | Apr 18, 17 | HYDRO INTERNATIONAL PLC |
| 9605422 | Storm water catch basin hazardous liquid valve | Nov 06, 13 | Mar 28, 17 | ULTRATECH INTERNATIONAL, INC. |
| 9566622 | Automatic vacuum sewerage solids cleaning systems and methods | Mar 13, 14 | Feb 14, 17 | Not available |
| 9570772 | Power production apparatus and structure block system for water storage facility | Sep 03, 13 | Feb 14, 17 | BOMECOTEC CO., LTD. |
| 9556048 | Chain filter system of micro wetland cells and method of forming same | Sep 20, 16 | Jan 31, 17 | Not available |
| 9540799 | Modular storm water filtration system | Apr 07, 10 | Jan 10, 17 | OLDCASTLE PRECAST, INC. |
| 9534369 | Inlet of underground reservoir having multiple-stage structure | Sep 22, 14 | Jan 03, 17 | KOREA INSTITUTE OF CONSTRUCTION TECHNOLOGY |