E02B 11/005
Drainage conduits
Official title: {Drainage conduits}
E02B11/005 (Drainage conduits) appears on 292 US grants and 217 published applications in this corpus.
Search patents in E02B- Granted patents
- 292
- Published applications
- 217
- Assignees
- 122
- Inventors
- 382
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 7 | 0 |
| 1978 | 8 | 0 |
| 1979 | 5 | 0 |
| 1980 | 7 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 7 | 0 |
| 1998 | 8 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 0 |
| 2002 | 5 | 3 |
| 2003 | 5 | 2 |
| 2004 | 8 | 6 |
| 2005 | 6 | 12 |
| 2006 | 6 | 6 |
| 2007 | 5 | 7 |
| 2008 | 4 | 12 |
| 2009 | 6 | 8 |
| 2010 | 5 | 11 |
| 2011 | 4 | 6 |
| 2012 | 8 | 5 |
| 2013 | 4 | 10 |
| 2014 | 8 | 14 |
| 2015 | 10 | 9 |
| 2016 | 10 | 14 |
| 2017 | 12 | 15 |
| 2018 | 13 | 7 |
| 2019 | 12 | 16 |
| 2020 | 20 | 12 |
| 2021 | 13 | 12 |
| 2022 | 7 | 9 |
| 2023 | 3 | 7 |
| 2024 | 9 | 8 |
| 2025 | 7 | 4 |
| 2026 | 5 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Landscaping containment system14 Jul 2026US 12,677,761 B1Karogen LLC
- French drain drainpipe14 Jul 2026US 12,680,260 B2Ironx Piping LLC
- Modular drainage device and system16 Jun 2026US 12,655,591 B1
- Wastewater unit with internal sandwiched connector7 Apr 2026US 12,595,191 B2Eljen Corporation
- Telescoping drain7 Apr 2026US 12,595,633 B2
- Electro-cleaning device and method24 Sep 2026US 2026/0284717 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Method of draining water30 Apr 2026US 2026/0116818 A1Rockwool A/S
- Drainage anti-slide pipe pile suitable for open channel project of expansive soil in cold and arid regions and construction method thereof2 Oct 2025US 2025/0305233 A1Xinjiang Agricultural University
- Telescoping drain28 Aug 2025US 2025/0270778 A1
- In-soil liquid movement device and system5 Jun 2025US 2025/0179750 A1Parjana Engineering & Associates, Inc.
Most cited
By later US patents
- Active pulse blood constituent monitoring867US 7,239,905 B2Masimo Laboratories, Inc. · 2007
- Underground drainage system131US 5,810,510 A1998
- Subterranean drain100US 4,840,515 AMirafi, Inc. · 1989
- Multi-layered corrugated conduit with "black-eye" like apertures92US 4,523,613 AHancor, Inc. · 1985
- Arch conduit71US 4,245,924 AHancor, Inc. · 1981