E04B 1/642
Protecting metallic construction elements against corrosion
Official title: {Protecting metallic construction elements against corrosion (for concrete reinforcing elements made of steel E04C5/01; anodic or cathodic protection C23F13/00)}
E04B1/642 (Protecting metallic construction elements against corrosion) appears on 30 US grants and 17 published applications in this corpus.
Search patents in E04B- Granted patents
- 30
- Published applications
- 17
- Assignees
- 19
- Inventors
- 54
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 2 | 4 |
| 2017 | 2 | 1 |
| 2018 | 0 | 1 |
| 2019 | 2 | 2 |
| 2020 | 2 | 2 |
| 2021 | 1 | 0 |
| 2022 | 1 | 1 |
| 2023 | 2 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for maintaining a metal lintel in a masonry wall6 Oct 2026US 12,753,600 B2Craft Pro Masonry Restorations, Inc.
- System and method for efficient and ergonomic waterproofing of joints and fasteners21 Nov 2023US 11,819,870 B2
- Cover for lintels or angle irons27 Jun 2023US 11,686,093 B2Royal Building Supplies Ltd
- Systems, devices, and/or methods for building construction18 Oct 2022US 11,473,299 B1
- Mineral wool insulation board system with mechanical fasteners and reinforcing mesh30 Mar 2021US 10,961,699 B2Durock Alfacing International Limited
- Hybrid building system2 Apr 2026US 2026/0091451 A1
- System and Method for Maintaining a Metal Lintel in a Masonry Wall17 Jul 2025US 2025/0230648 A1Craft Pro Masonry Restorations, Inc.
- Heat-insulating waterproof structure, heat-insulating waterproof member, and method for installing heat-insulating waterproof structure17 Apr 2025US 2025/0122721 A1Sekisui House, Ltd.
- Cover for lintels or angle irons23 Mar 2023US 2023/0086840 A1Royal Building Supplies Ltd
- Systems, Devices, and/or Methods for Building Construction3 Nov 2022US 2022/0349179 A1
Most cited
By later US patents
- Corrosion-resistant encasement for structural members165US 4,019,301 A1977
- Flexible protective cover sections, assemblies and form system43US 4,081,941 ACeel-Co · 1978
- Process for inhibiting corrosion of metal embedded in concrete and a reinforced concrete construction43US 4,506,485 AState of California, Department of Transportation · 1985
- Inhibiting corrosion in reinforced concrete42US 5,183,694 A1993
- Roof insulation system and method of fabrication therefor35US 4,736,552 A1988