E01F 8/0047
With open cavities
Official title: {with open cavities, e.g. for covering sunken roads}
E01F8/0047 (With open cavities) appears on 97 US grants and 68 published applications in this corpus.
Search patents in E01F- Granted patents
- 97
- Published applications
- 68
- Assignees
- 65
- Inventors
- 203
- Latest grant
- 10 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 6 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 4 |
| 2004 | 3 | 5 |
| 2005 | 1 | 2 |
| 2006 | 1 | 2 |
| 2007 | 1 | 3 |
| 2008 | 2 | 2 |
| 2009 | 1 | 1 |
| 2010 | 1 | 2 |
| 2011 | 1 | 1 |
| 2012 | 0 | 3 |
| 2013 | 2 | 3 |
| 2014 | 2 | 4 |
| 2015 | 2 | 0 |
| 2016 | 0 | 3 |
| 2017 | 0 | 2 |
| 2018 | 1 | 3 |
| 2019 | 4 | 4 |
| 2020 | 1 | 4 |
| 2021 | 2 | 6 |
| 2022 | 2 | 5 |
| 2023 | 5 | 3 |
| 2024 | 2 | 2 |
| 2025 | 2 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Interference noise-control unit10 Jun 2025US 12,325,966 B2Wavebreaker AB
- Sound absorber8 Apr 2025US 12,270,165 B2Sealed Air Verpackungen GmbH
- Sound wall and method of constructing the same1 Oct 2024US 12,104,339 B2Ail International Inc.
- Sound dampening barrier wall11 Jun 2024US 12,006,643 B2Mute Wall Systems, Inc.
- Sound absorber, sound absorbing panel and sound absorbing wall26 Dec 2023US 11,854,523 B2Pixie Dust Technologies, Inc.
- Metabarrier for sound mitigation16 Apr 2026US 2026/0105903 A1Temple University of the Commonwealth System of Higher Education
- Sound insulation device with vibroacoustic metamaterials12 Mar 2026US 2026/0071395 A1Autobahnen- Und Schnellstrassen-Finanzierungs-Aktiengesellschaft
- Noise barrier wall5 Jun 2025US 2025/0179743 A1Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Sound wall with ultra-lightweight foamed glass aggregates11 Apr 2024US 2024/0117578 A1Aero Aggregates of North America LLC
- Modular canopy system28 Mar 2024US 2024/0106384 A1
Most cited
By later US patents
- Perforated honeycomb129US 5,180,619 ASupracor Systems, Inc. · 1993
- Contoured seat cushion comprised of honeycomb cores125US 5,617,595 ASupracor Systems, Inc. · 1997
- Anatomical support apparatus111US 5,444,881 ASupracor Systems, Inc. · 1995
- Liner for overlaying a mattress97US 5,701,621 ASupracor Systems, Inc. · 1997
- Resilient panel having anisotropic flexing characteristics and method of making same91US 5,039,567 ASupracor Systems, Inc. · 1991