E04F 17/08
Vertical ducts: for receiving utility lines
Official title: for receiving utility lines, e.g. cables, pipes (covers giving access to the ducts or channels, covers of inspection holes E04F19/08)
E04F17/08 (Vertical ducts: for receiving utility lines) appears on 118 US grants and 79 published applications in this corpus.
Search patents in E04F- Granted patents
- 118
- Published applications
- 79
- Assignees
- 65
- Inventors
- 213
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 7 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 10 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 2 |
| 2003 | 0 | 6 |
| 2004 | 0 | 2 |
| 2005 | 1 | 3 |
| 2006 | 0 | 2 |
| 2007 | 4 | 2 |
| 2008 | 2 | 5 |
| 2009 | 0 | 3 |
| 2010 | 1 | 1 |
| 2011 | 4 | 2 |
| 2012 | 1 | 1 |
| 2013 | 1 | 0 |
| 2014 | 3 | 6 |
| 2015 | 2 | 4 |
| 2016 | 4 | 7 |
| 2017 | 1 | 6 |
| 2018 | 11 | 8 |
| 2019 | 9 | 7 |
| 2020 | 5 | 3 |
| 2021 | 2 | 5 |
| 2022 | 3 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
| 2025 | 2 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Duct assemblies11 Aug 2026US 12,703,985 B2EZ-Duct, Inc.
- Multifunctional design housing components16 Sep 2025US 12,416,153 B2The AZEK Group LLC
- Transferring apparatus for pipeline and electricity wiring insertion into residential secured spaces4 Feb 2025US 12,215,815 B2
- Room modules for buildings30 Jul 2024US 12,049,754 B2Binder Beteiligungs AG
- Prefabricated module for a building and construction method23 Aug 2022US 11,421,416 B2Littow Architectes
- Multifunctional design housing components11 Dec 2025US 2025/0376842 A1The AZEK Group LLC
- Gasket and Transferring Apparatus For Pipeline And Electricity Wiring Insertion Into Residential Secured Spaces19 Jun 2025US 2025/0198542 A1
- Duct Assemblies2 May 2024US 2024/0141657 A1EZ-Duct, Inc.
- Room modules for buildings15 Sep 2022US 2022/0290423 A1Binder Beteiligungs AG
- Multifunctional design housing components16 Dec 2021US 2021/0388615 A1StruXure Outdoor, Inc.
Most cited
By later US patents
- System to prevent spread of fire and smoke through wall-breaching utility holes196US 5,456,050 AConstruction Consultants & Contractors, Inc. · 1995
- Board floors162US 4,612,745 A1986
- Interior shaft wall construction153US 5,950,385 A1999
- Fire safety device151US 5,155,957 ANational Improvement Company, Inc. · 1992
- Raceway assembly for power and communications conductors120US 5,336,849 AThe Wiremold Company · 1994