E03F 3/02
Arrangement of sewer pipe-lines or pipe-line systems
E03F3/02 (Arrangement of sewer pipe-lines or pipe-line systems) appears on 64 US grants and 63 published applications in this corpus.
Search patents in E03F- Granted patents
- 64
- Published applications
- 63
- Assignees
- 26
- Inventors
- 93
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 1 |
| 2004 | 1 | 2 |
| 2005 | 0 | 0 |
| 2006 | 1 | 2 |
| 2007 | 0 | 1 |
| 2008 | 3 | 1 |
| 2009 | 1 | 2 |
| 2010 | 1 | 1 |
| 2011 | 3 | 3 |
| 2012 | 2 | 2 |
| 2013 | 3 | 3 |
| 2014 | 1 | 5 |
| 2015 | 3 | 2 |
| 2016 | 2 | 5 |
| 2017 | 4 | 2 |
| 2018 | 4 | 3 |
| 2019 | 3 | 4 |
| 2020 | 8 | 8 |
| 2021 | 2 | 4 |
| 2022 | 7 | 3 |
| 2023 | 4 | 2 |
| 2024 | 4 | 3 |
| 2025 | 1 | 4 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- French drain drainpipe18 Jun 2024US 12,012,741 B2Ironx Piping LLC
- Burial environment classification map creation apparatus, buried pipe deterioration degree prediction apparatus, burial environment classification map creation method, and non-transitory computer-readable recording medium2 Oct 2025US 2025/0307715 A1Kubota Corporation
- Systems and methods for a modular drainage system21 Aug 2025US 2025/0263916 A1
- Tunnel drainage method for laying drainage pipe based on ultra-long distance horizontal directional drilling21 Aug 2025US 2025/0263982 A1Cccc Second Highway Consultants Co., Ltd.
- Sewer System Overflow Prevention Device6 Mar 2025US 2025/0075487 A1
- French drain drainpipe12 Sep 2024US 2024/0301647 A1Ironx Piping LLC
Most cited
By later US patents
- Waste water electrical power generating system29US 7,357,599 B2Criptonic Energy Solutions, Inc. · 2008
- Wastewater pretreatment, gathering and final treatment process26US 6,669,839 B22003
- Small bore sewer system19US 5,895,569 A1999
- Waste water electrical power generating system19US 7,452,160 B22008
- Waste water electrical power generating system17US 7,802,942 B22010