E01C 13/02
Foundations
Official title: Foundations, e.g. with drainage or heating arrangements {(E01C13/003, E01C13/083, E01C13/10 take precedence; drainage of soil E02B11/00)}
E01C13/02 (Foundations) appears on 261 US grants and 287 published applications in this corpus.
Search patents in E01C- Granted patents
- 261
- Published applications
- 287
- Assignees
- 134
- Inventors
- 327
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 6 | 0 |
| 1996 | 1 | 0 |
| 1997 | 5 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 8 |
| 2004 | 2 | 2 |
| 2005 | 1 | 2 |
| 2006 | 4 | 9 |
| 2007 | 4 | 9 |
| 2008 | 2 | 11 |
| 2009 | 7 | 5 |
| 2010 | 5 | 7 |
| 2011 | 4 | 5 |
| 2012 | 5 | 9 |
| 2013 | 7 | 9 |
| 2014 | 8 | 12 |
| 2015 | 5 | 12 |
| 2016 | 12 | 6 |
| 2017 | 14 | 17 |
| 2018 | 9 | 18 |
| 2019 | 19 | 23 |
| 2020 | 22 | 22 |
| 2021 | 12 | 26 |
| 2022 | 11 | 17 |
| 2023 | 17 | 13 |
| 2024 | 9 | 22 |
| 2025 | 16 | 11 |
| 2026 | 13 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sports field and methods for forming and operating the same29 Sep 2026US 12,746,454 B2Dutchblue World B.V.
- Payment structure with PCM material29 Sep 2026US 12,747,367 B2Apt Asia Pacific Pty. Ltd.
- Laminated tufted good22 Sep 2026US 12,742,296 B2
- Method for the construction and sustainable management of a hybrid turf sports ground with water table and hybrid turf sports ground25 Aug 2026US 12,716,179 B2Natural Grass
- Root zone warming system and method for natural turf athletic field16 Jun 2026US 12,655,586 B2Technology Licensing Corporation
- Artificial turf system and support layer17 Sep 2026US 2026/0275657 A1PES Field Systems, LLC
- Turf tray27 Aug 2026US 2026/0248079 A1Camitch Enterprises Pty Ltd
- Artificial turf structure having excellent antibacterial, impact-absorbing and drainage properties and method for manufacturing same30 Jul 2026US 2026/0215527 A1Biland.Co.,Ltd
- Shock absorbing layer and a method for its production23 Jul 2026US 2026/0210007 A1
- Shock-Absorbing Surface and Methods of Making and Installing the Same9 Jul 2026US 2026/0193850 A1
Most cited
By later US patents
- Arena floor and flooring element195US 4,703,597 A1987
- Subsurface fluid drainage and storage systems112US 5,848,856 AInvisible Structures, Inc. · 1998
- Playing surface for athletic games79US 4,044,179 AMOD-SOD Sport Surfaces · 1977
- Resilient leveler and shock absorber for sport floor73US 4,879,857 ASport Floor Design, Inc. · 1989
- Composite artificial turf structure with shock absorption and drainage70US 6,221,445 B1U.S. Greentech, Inc. · 2001