2025/0020,228 | DUAL AIR ADMITTANCE VALVE WITH LOCKING MECHANISM AND PRESSURE INDICATOR | Aug 21, 24 | Jan 16, 25 | Not available |
2024/0052,622 | MANHOLE ODOR TREATMENT DEVICE | Aug 09, 22 | Feb 15, 24 | Not available |
2021/0317,650 | AIR ADMITTANCE VALVE | Aug 10, 17 | Oct 14, 21 | Not available |
2021/0071,405 | BLOWER AND VENTILATION SYSTEM | Nov 20, 20 | Mar 11, 21 | Tokyo Metropolitan Sewerage Service Corporation; EBISMARINE CORPORATION; EBISTRADE, INC.; |
2020/0332,510 | METHOD AND DEVICE FOR CONTROLLING VENTILATION AMOUNT WITH RESPECT TO SEALED PIPE | Nov 21, 17 | Oct 22, 20 | SCENTEC INC. |
2018/0334,791 | STEAM VENT SYSTEM | May 16, 17 | Nov 22, 18 | Not available |
2018/0195,263 | METHOD AND SYSTEM FOR ENCAPSULATING A ROTATING BIOLOGICAL CONTACTOR | Jan 06, 17 | Jul 12, 18 | Not available |
2018/0087,261 | BLOWER AND VENTILATING SYSTEM | Dec 08, 15 | Mar 29, 18 | Tokyo Metropolitan Sewerage Service Corporation; EBISMARINE CORPORATION; EBISTRADE, INC.; |
2015/0225,938 | APPARATUS AND METHOD FOR INCREASING HYDRAULIC CAPACITY OF A GRAVITY SEWER | Mar 31, 15 | Aug 13, 15 | The White Oak Partnership, L.P. |
2014/0251,127 | METHOD AND DEVICE FOR INFLUENCING THE SMELL WHICH COMES FROM SHAFT OPENINGS OF UNDERGROUND SEWERS | Oct 05, 12 | Sep 11, 14 | Not available |
2014/0227,954 | BLOWER AND VENTILATION SYSTEM | Apr 14, 14 | Aug 14, 14 | TOKYO METROPOLITAN SEWERAGE SERVICE CORPORATION, EBISMARINE CORPORATION, EBISTRADE, INC., |
2013/0327,214 | APPARATUS AND METHOD FOR INCREASING HYDRAULIC CAPACITY OF A SEWER | Aug 15, 13 | Dec 12, 13 | The White Oak Partnership, L.P. |
2013/0065,506 | SEPTIC SYSTEM VENT SCREEN | Dec 30, 11 | Mar 14, 13 | Not available |
2012/0227,168 | MANHOLE ODOR ELIMINATOR | Mar 08, 12 | Sep 13, 12 | INVENTIVE RESOURCES, INC |
2012/0204,333 | Pressure equalizing valve | Sep 07, 10 | Aug 16, 12 | Raccords et Plastiques Nicoll |
2012/0118,820 | Septic System with Pressure Gradient Transport | Nov 11, 10 | May 17, 12 | Not available |
2011/0132,824 | High Performance Sewer System | Dec 03, 10 | Jun 09, 11 | CLEARFORD INDUSTRIES INC. |
2009/0044,321 | Sewer and septic tank venting device | Aug 17, 07 | Feb 19, 09 | Not available |
2007/0033,719 | Sewer pipe gas exhaust filter apparatus | Aug 15, 06 | Feb 15, 07 | Odor Control Specialties, LLC |
2005/0144,708 | Spill proof snack bowl | Dec 24, 04 | Jul 07, 05 | Not available |