E02D 31/02
Against ground humidity or ground water
Official title: against ground humidity or ground water {(E02D31/06 takes precedence; arrangements other than according to E02D31/04; against hydraulic pressure of groundwater E02D31/10)}
E02D31/02 (Against ground humidity or ground water) appears on 405 US grants and 314 published applications in this corpus.
Search patents in E02D- Granted patents
- 405
- Published applications
- 314
- Assignees
- 204
- Inventors
- 663
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 7 | 0 |
| 1985 | 13 | 0 |
| 1986 | 7 | 0 |
| 1987 | 5 | 0 |
| 1988 | 8 | 0 |
| 1989 | 9 | 0 |
| 1990 | 10 | 0 |
| 1991 | 7 | 0 |
| 1992 | 11 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 8 | 0 |
| 1996 | 12 | 0 |
| 1997 | 10 | 0 |
| 1998 | 20 | 0 |
| 1999 | 10 | 0 |
| 2000 | 8 | 0 |
| 2001 | 4 | 0 |
| 2002 | 3 | 2 |
| 2003 | 10 | 20 |
| 2004 | 6 | 14 |
| 2005 | 6 | 14 |
| 2006 | 8 | 14 |
| 2007 | 4 | 17 |
| 2008 | 2 | 15 |
| 2009 | 5 | 17 |
| 2010 | 4 | 9 |
| 2011 | 11 | 13 |
| 2012 | 8 | 8 |
| 2013 | 11 | 12 |
| 2014 | 11 | 6 |
| 2015 | 10 | 13 |
| 2016 | 8 | 9 |
| 2017 | 15 | 13 |
| 2018 | 10 | 13 |
| 2019 | 12 | 12 |
| 2020 | 13 | 17 |
| 2021 | 11 | 19 |
| 2022 | 10 | 21 |
| 2023 | 13 | 9 |
| 2024 | 16 | 8 |
| 2025 | 9 | 12 |
| 2026 | 6 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Underground space frame structure and construction method thereof28 Jul 2026US 12,692,681 B2Shandong University
- French drain drainpipe14 Jul 2026US 12,680,260 B2Ironx Piping LLC
- Modular drainage device and system16 Jun 2026US 12,655,591 B1
- Perimeter drain21 Apr 2026US 12,606,975 B2Independence Materials Group, LLC
- Drainage pressure relief anti-floating system suitable for weakly permeable soft stratum3 Mar 2026US 12,565,752 B2South China University of Technology
- Below grade waterproofing membrane8 Oct 2026US 2026/0308866 A1GCP Applied Technologies Inc.
- Duck Bridge and Method for Using Same1 Oct 2026US 2026/0297870 A1
- Drainage pipe24 Sep 2026US 2026/0286642 A1Basement Systems, Inc.
- Self-repairing capsule for landfill liner and method for preventing leakage30 Jul 2026US 2026/0218477 A1BeSTDR Infrastructure Hospital (Pingyu)
- Injection port apparatuses for hollow structural blocks30 Jul 2026US 2026/0218478 A1
Most cited
By later US patents
- Water cutoff junction member for concrete products to be joined together198US 6,052,960 AYamax Corporation · 2000
- Combined drainage and waterproofing panel system for subterranean walls121US 4,943,185 A1990
- Drainage and support mat118US 5,383,314 ALaticrete International, Inc. · 1995
- Subterranean drain100US 4,840,515 AMirafi, Inc. · 1989
- Arrangement in a protective membrane, especially for floors90US 5,619,832 AIsola AS · 1997