| 2024/0344,318 | STORM DRAIN GRATE AND FILTER APPARATUS AND METHOD | May 23, 24 | Oct 17, 24 | Not available |
| 2024/0044,123 | SYSTEM FOR INCREASING AND DISPLAYING EFFECTIVENESS AND EFFICIENCY OF STORMWATER INFRASTRUCTURE | Oct 05, 23 | Feb 08, 24 | Not available |
| 2024/0026,673 | STORM DRAIN GRATE AND FILTER APPARATUS AND METHOD | May 23, 23 | Jan 25, 24 | Not available |
| 2022/0325,516 | STORM DRAIN GRATE AND FILTER APPARATUS AND METHOD | May 12, 22 | Oct 13, 22 | Not available |
| 2022/0251,818 | Detection And Monitoring System For The Management Of Combined Sewer Systems | Apr 29, 22 | Aug 11, 22 | Not available |
| 2022/0178,103 | SUMP OVERFLOW PROTECTOR | Jun 11, 21 | Jun 09, 22 | Not available |
| 2022/0120,074 | SUMP OVERFLOW PROTECTOR | Jun 11, 21 | Apr 21, 22 | Not available |
| 2020/0224,402 | Detection And Monitoring System For The Management Of Combined Sewer Systems | Mar 31, 20 | Jul 16, 20 | Not available |
| 2019/0032,322 | Backflow Valve Assembly | Jul 26, 17 | Jan 31, 19 | Not available |
| 2018/0274,220 | RETROFIT DRAINAGE SYSTEM | Jan 23, 18 | Sep 27, 18 | Not available |
| 2018/0087,259 | DETECTION AND MONITORING SYSTEM FOR THE MANAGEMENT OF COMBINED SEWER SYSTEMS | Sep 27, 17 | Mar 29, 18 | Not available |
| 2018/0016,780 | Internal Trap Drain with Adjustable Height Strainer and High Mass Seal | Jun 19, 17 | Jan 18, 18 | Not available |
| 2017/0159,277 | Drain Valve With Tapered Skirt Valve | Apr 28, 15 | Jun 08, 17 | GREEN DRAIN INC. |
| 2017/0107,711 | POWERLESS BACK-FLOW PREVENTION APPARATUS | Jul 13, 15 | Apr 20, 17 | KOREA MACHINERY IND. INC. |
| 2016/0319,532 | Drain Valve With Tapered Skirt Valve | Apr 28, 15 | Nov 03, 16 | GREEN DRAIN INC. |
| 2016/0024,778 | RETROFIT CATCH BASIN FOR USE IN STORM WATER MANAGEMENT PRACTICE | Aug 04, 15 | Jan 28, 16 | Not available |
| 2014/0262,996 | DRAIN GRATE SYSTEM AND METHOD | Mar 13, 13 | Sep 18, 14 | G2 Construction, Inc. |
| 2014/0109,993 | Gully arrangement | Dec 23, 13 | Apr 24, 14 | Bluewater Design Associates Limited |
| 2013/0292,311 | Stormwater Drain Backflow Flood Control Device | May 03, 13 | Nov 07, 13 | Not available |
| 2012/0325,341 | GULLY ARRANGEMENT | Dec 13, 10 | Dec 27, 12 | KELMAR LIMITED |