E02B 11/00
Drainage of soil
Official title: Drainage of soil, e.g. for agricultural purposes {(draining sports grounds E01C13/083; for consolidating foundation soil, e.g. sand drain piles E02D3/10)}
E02B11/00 (Drainage of soil) appears on 545 US grants and 379 published applications in this corpus.
Search patents in E02B- Granted patents
- 545
- Published applications
- 379
- Assignees
- 234
- Inventors
- 721
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 7 | 0 |
| 1978 | 8 | 0 |
| 1979 | 8 | 0 |
| 1980 | 7 | 0 |
| 1981 | 10 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 6 | 0 |
| 1985 | 3 | 0 |
| 1986 | 7 | 0 |
| 1987 | 9 | 0 |
| 1988 | 7 | 0 |
| 1989 | 6 | 0 |
| 1990 | 16 | 0 |
| 1991 | 14 | 0 |
| 1992 | 6 | 0 |
| 1993 | 8 | 0 |
| 1994 | 11 | 0 |
| 1995 | 9 | 0 |
| 1996 | 9 | 0 |
| 1997 | 9 | 0 |
| 1998 | 13 | 0 |
| 1999 | 7 | 0 |
| 2000 | 12 | 0 |
| 2001 | 8 | 2 |
| 2002 | 11 | 6 |
| 2003 | 11 | 11 |
| 2004 | 10 | 10 |
| 2005 | 8 | 14 |
| 2006 | 8 | 16 |
| 2007 | 10 | 9 |
| 2008 | 4 | 17 |
| 2009 | 10 | 10 |
| 2010 | 6 | 18 |
| 2011 | 8 | 13 |
| 2012 | 11 | 8 |
| 2013 | 8 | 17 |
| 2014 | 12 | 28 |
| 2015 | 18 | 19 |
| 2016 | 14 | 18 |
| 2017 | 25 | 25 |
| 2018 | 20 | 17 |
| 2019 | 27 | 23 |
| 2020 | 29 | 20 |
| 2021 | 23 | 21 |
| 2022 | 14 | 15 |
| 2023 | 6 | 10 |
| 2024 | 18 | 18 |
| 2025 | 14 | 10 |
| 2026 | 8 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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
- Stormwater management system26 May 2026US 12,637,853 B2Con-Cast Pipe Inc.
- Slope reinforcing and protecting device for hydraulic engineering5 May 2026US 12,618,216 B2Anhui Agriculture University
- Electro-cleaning device and method24 Sep 2026US 2026/0284717 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Geotextiles Configured for Moisture Management4 Jun 2026US 2026/0152909 A1Willacoochee Industrial Fabrics, Inc.
- Method of draining water30 Apr 2026US 2026/0116818 A1Rockwool A/S
- Prefabricated vertical geotextile ditch check system30 Apr 2026US 2026/0117483 A1
- Base for turf system with vertical support extensions at panel edges18 Dec 2025US 2025/0382753 A1Brock USA, LLC
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
- Combined drainage and waterproofing panel system for subterranean walls121US 4,943,185 A1990
- Subsurface fluid drainage and storage systems112US 5,848,856 AInvisible Structures, Inc. · 1998
- Subterranean drain100US 4,840,515 AMirafi, Inc. · 1989