E04C 1/397
Serving for locating conduits
Official title: {serving for locating conduits (E04C1/392 takes precedence)}
E04C1/397 (Serving for locating conduits) appears on 81 US grants and 125 published applications in this corpus.
Search patents in E04C- Granted patents
- 81
- Published applications
- 125
- Assignees
- 45
- Inventors
- 148
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 1 |
| 2003 | 1 | 2 |
| 2004 | 0 | 2 |
| 2005 | 3 | 0 |
| 2006 | 0 | 4 |
| 2007 | 0 | 4 |
| 2008 | 0 | 5 |
| 2009 | 1 | 2 |
| 2010 | 1 | 3 |
| 2011 | 1 | 3 |
| 2012 | 5 | 4 |
| 2013 | 3 | 7 |
| 2014 | 7 | 8 |
| 2015 | 5 | 10 |
| 2016 | 7 | 9 |
| 2017 | 3 | 7 |
| 2018 | 8 | 12 |
| 2019 | 5 | 5 |
| 2020 | 3 | 6 |
| 2021 | 3 | 6 |
| 2022 | 1 | 9 |
| 2023 | 6 | 4 |
| 2024 | 6 | 4 |
| 2025 | 2 | 4 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Plastic building blocks14 Apr 2026US 12,601,171 B2ECO Snap Blocks, INC.
- Modular building blocks31 Mar 2026US 12,590,456 B2
- Interlocking composite construction block17 Mar 2026US 12,577,776 B2Compositech, Inc.
- Precast block for housing and routing electrical power cables, an electric vehicle charging station using the block and a manufacturing method14 Oct 2025US 12,441,205 B2EV Blocks LTD
- Fixture-ready block8 Jul 2025US 12,352,046 B2
- A construction block6 Aug 2026US 2026/0226738 A1Brilliant Ideas Ltd
- Mortarless interlocking concrete block system26 Feb 2026US 2026/0055603 A1
- Precast block for housing and routing electrical power cables, an electric vehicle charging station using the block and a manufacturing method15 Jan 2026US 2026/0014884 A1EV Blocks LTD
- Cuboid construction element, method for manufacturing a construction element, and system comprising two cuboid construction elements4 Sep 2025US 2025/0277363 A1
- Modular building blocks21 Aug 2025US 2025/0263923 A1
Most cited
By later US patents
- Building block and structures formed therefrom72US 5,024,035 AInsulock Corporation · 1991
- Construction block42US 6,253,519 B12001
- Polystyrene wall, system, and method for use in an insulated foam building33US 8,359,808 B2Solid Green Developments, LLC · 2013
- Construction components having embedded internal support structures to provide enhanced structural reinforcement for, and improved ease in construction of, walls comprising same31US 9,523,201 B22016
- Modular pre-insulated, pre-finished building block30US 4,694,624 A1987