| 9982417 | Water delivery apparatus | Sep 18, 15 | May 29, 18 | Not available |
| 9975783 | Apparatus to classify and separate turbid water and clean water | Aug 05, 16 | May 22, 18 | Not available |
| 9970184 | Method and system for recycling domestic greywater | Nov 14, 12 | May 15, 18 | Not available |
| 9956512 | Device and method for purifying and recycling shower water | Dec 19, 12 | May 01, 18 | Orbital Systems AB |
| 9908122 | Waste fluid holding tank drain system and method | Jul 22, 15 | Mar 06, 18 | THETFORD CORPORATION |
| 9908797 | Waste treatment system | Apr 17, 14 | Mar 06, 18 | EPIC CLEANTEC INC. |
| 9902497 | Method and system for managing the grey water in an aircraft | Jan 21, 15 | Feb 27, 18 | MAG AEROSPACE INDUSTRIES, LLC |
| 9890960 | Water saving apparatus | Feb 07, 14 | Feb 13, 18 | Huts, Adam William |
| 9879406 | System for using whitewater and soapy water in places of residence | Mar 23, 12 | Jan 30, 18 | Not available |
| 9879410 | Cold bathing water to toilet diverting apparatus | Mar 12, 15 | Jan 30, 18 | Not available |
| 9874003 | Method and apparatus for cycling or drawing down water stored in pressure tanks installed on water service lines supplied by water supply systems | Jan 14, 17 | Jan 23, 18 | Not available |
| 9839341 | Food waste collector system with overhead sprayer | Sep 14, 15 | Dec 12, 17 | EMERSON ELECTRIC CO. |
| 9832939 | Systems and methods for water harvesting and recycling | Jan 20, 11 | Dec 05, 17 | Not available |
| 9790100 | Graywater separation device | Nov 26, 14 | Oct 17, 17 | MCLAUGHLIN, TRUSTEE OF THE JENNIFER MCLAUGHLIN TRUST, JENNIFER K., Jennifer K. McLaughlin, Trustee of the Jennifer K. McLaughlin Trust, |
| 9783963 | Safety device for circulating water utilization system and circulating-water utilization system | Dec 04, 14 | Oct 10, 17 | MITSUBISHI HITACHI POWER SYSTEMS, LTD. |
| 9739042 | Water disposable system using unwanted water | Feb 23, 16 | Aug 22, 17 | Gavin, Kim |
| 9739064 | Drainage system and apparatus for treating runoff | Apr 06, 15 | Aug 22, 17 | HYDRO INTERNATIONAL PLC |
| 9732503 | Clean water conservation tank for a toilet | Dec 02, 15 | Aug 15, 17 | Not available |
| 9732526 | System of components which, assembled, form a rainwater separator for a downpipe | Feb 03, 14 | Aug 15, 17 | WISY AG HAUSTECHNIKSYSTEME, FILTERTECHNIK |
| 9725887 | Siphon aid for siphoning grey water | Feb 12, 16 | Aug 08, 17 | Not available |