E04C 2/521
Serving for locating conduits
Official title: {serving for locating conduits; for ventilating, heating or cooling}
E04C2/521 (Serving for locating conduits) appears on 337 US grants and 409 published applications in this corpus.
Search patents in E04C- Granted patents
- 337
- Published applications
- 409
- Assignees
- 212
- Inventors
- 662
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 6 | 0 |
| 1992 | 10 | 0 |
| 1993 | 10 | 0 |
| 1994 | 2 | 0 |
| 1995 | 6 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 2 |
| 2003 | 0 | 8 |
| 2004 | 1 | 2 |
| 2005 | 2 | 5 |
| 2006 | 1 | 5 |
| 2007 | 1 | 5 |
| 2008 | 0 | 6 |
| 2009 | 1 | 13 |
| 2010 | 3 | 14 |
| 2011 | 9 | 14 |
| 2012 | 6 | 3 |
| 2013 | 8 | 18 |
| 2014 | 13 | 26 |
| 2015 | 12 | 23 |
| 2016 | 15 | 31 |
| 2017 | 23 | 25 |
| 2018 | 23 | 28 |
| 2019 | 20 | 26 |
| 2020 | 24 | 24 |
| 2021 | 18 | 29 |
| 2022 | 13 | 23 |
| 2023 | 15 | 18 |
| 2024 | 15 | 29 |
| 2025 | 18 | 14 |
| 2026 | 16 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Construction panel8 Sep 2026US D1,147,463 S1Amp IP LLC · Design
- Dynamic insulation system for switchable building envelope25 Aug 2026US 12,716,232 B2The Regents of the University of Colorado, a body corporate
- CLT building acoustic sprinkler drop flooring system25 Aug 2026US 12,716,235 B2United States Gypsum Company
- Prefabricated deck, wall, and roof systems4 Aug 2026US 12,698,631 B1MFI Real Estate, LLC
- Wall of a building including a water supply unit for a plurality of power units28 Jul 2026US 12,695,320 B2Joules Miles Co., Ltd.
- Fire-Resistant Building Panels8 Oct 2026US 2026/0308909 A1Envirograf Ltd
- Wall Building System8 Oct 2026US 2026/0308911 A1
- Construction panel transport systems and methods24 Sep 2026US 2026/0286698 A1Axe Buildings Incorporated
- Pre-assembled construction panels24 Sep 2026US 2026/0286699 A1Axe Buildings Incorporated
- Cross-laminated timber panel structures, assemblies, and methods for making the same24 Sep 2026US 2026/0286700 A1West Virginia University Board of Governors on behalf of West Virginia University
Most cited
By later US patents
- Wall panel with prewired power system106US 4,060,294 AHaworth Mfg., Inc. · 1977
- Building system using prefabricated building panels and fastening components used therewith92US 5,471,804 A1995
- Construction panels for structural support systems85US 4,078,348 A1978
- External wall panel and mounting structure thereof76US 5,239,798 AKajima Corporation · 1993
- Prefab fiber building construction75US 5,729,936 A1998