E04D 13/0409
Drainage outlets
Official title: {Drainage outlets, e.g. gullies}
E04D13/0409 (Drainage outlets) appears on 169 US grants and 117 published applications in this corpus.
Search patents in E04D- Granted patents
- 169
- Published applications
- 117
- Assignees
- 83
- Inventors
- 238
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 5 | 0 |
| 1996 | 9 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 8 | 0 |
| 2002 | 4 | 1 |
| 2003 | 3 | 5 |
| 2004 | 3 | 1 |
| 2005 | 1 | 2 |
| 2006 | 1 | 5 |
| 2007 | 0 | 2 |
| 2008 | 1 | 2 |
| 2009 | 2 | 4 |
| 2010 | 2 | 4 |
| 2011 | 3 | 3 |
| 2012 | 0 | 1 |
| 2013 | 2 | 1 |
| 2014 | 3 | 7 |
| 2015 | 5 | 5 |
| 2016 | 5 | 4 |
| 2017 | 5 | 9 |
| 2018 | 9 | 5 |
| 2019 | 6 | 6 |
| 2020 | 9 | 6 |
| 2021 | 7 | 10 |
| 2022 | 6 | 10 |
| 2023 | 5 | 5 |
| 2024 | 10 | 5 |
| 2025 | 3 | 7 |
| 2026 | 4 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- E04D 2013/0413Strainers for drainage outletsIndexing code79
- E04D 2013/0436With sealing meansIndexing code42
- E04D 2013/0427With means for controlling the flow in the outletIndexing code39
- E04D 13/0431With horizontal evacuation over the border of the roof15
- E04D 2013/0422For draining water above the roof levelIndexing code15
- E04D 2013/0418With de-icing devices or snow meltersIndexing code12
Recent patents
- Seal assembly method and apparatus18 Aug 2026US 12,709,897 B2Platinum Technologies Ltd.
- Sump drain apparatus, system, and method of construction4 Aug 2026US 12,698,633 B2Jmh Innovative Solutions, LLC
- Roof drain and promenade support7 Jul 2026US 12,674,324 B2Zurn Water, LLC
- Domed or raised drain inlet strainers24 Feb 2026US 12,559,945 B2Zurn Water, LLC
- Seal assembly method and apparatus30 Sep 2025US 12,428,845 B2Platinum Technologies Ltd.
- Maintenance access systems for drainage systems for amenities planters13 Aug 2026US 2026/0234936 A1
- Exterior surface fluid relief apparatuses, and associated systems and methods25 Jun 2026US 2026/0176875 A1Sensei AG Holdings, Inc.
- Exterior surface fluid relief apparatuses, and associated systems and methods25 Jun 2026US 2026/0177159 A1
- Roof drain21 May 2026US 2026/0139487 A1Government of the United States as Represented by the Secretary of the Air Force
- Roof drain and dome for same21 May 2026US 2026/0139488 A1Zurn Water, LLC
Most cited
By later US patents
- Adjustably extensible roof drain receptacle88US 4,505,814 ATyler Pipe Company · 1985
- Web-type stock material with upwardly projecting filamentary elements and defined periphery84US 4,671,976 A1987
- Roof drain coupling73US 4,799,713 A1989
- Roof drain cover61US 6,165,357 A2000
- Wastewater straining device56US 5,486,287 AMurphy Marketing, Inc. · 1996