E04D 13/04
Roof drainage
Official title: Roof drainage; Drainage fittings in flat roofs, {balconies or the like}(gutter tiles E04D1/30; gutter slabs E04D3/40; {vessels for collecting rainwater E03B3/03;} street gullies E03F5/04)
E04D13/04 (Roof drainage) appears on 1,956 US grants and 1,626 published applications in this corpus.
Search patents in E04D- Granted patents
- 1,956
- Published applications
- 1,626
- Assignees
- 568
- Inventors
- 2,441
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 17 | 0 |
| 1977 | 17 | 0 |
| 1978 | 16 | 0 |
| 1979 | 15 | 0 |
| 1980 | 19 | 0 |
| 1981 | 26 | 0 |
| 1982 | 18 | 0 |
| 1983 | 21 | 0 |
| 1984 | 21 | 0 |
| 1985 | 19 | 0 |
| 1986 | 27 | 0 |
| 1987 | 23 | 0 |
| 1988 | 25 | 0 |
| 1989 | 19 | 0 |
| 1990 | 27 | 0 |
| 1991 | 25 | 0 |
| 1992 | 24 | 0 |
| 1993 | 28 | 0 |
| 1994 | 24 | 0 |
| 1995 | 34 | 0 |
| 1996 | 42 | 0 |
| 1997 | 33 | 0 |
| 1998 | 46 | 0 |
| 1999 | 43 | 0 |
| 2000 | 39 | 0 |
| 2001 | 47 | 16 |
| 2002 | 40 | 24 |
| 2003 | 30 | 44 |
| 2004 | 36 | 54 |
| 2005 | 33 | 71 |
| 2006 | 30 | 69 |
| 2007 | 17 | 46 |
| 2008 | 18 | 66 |
| 2009 | 31 | 58 |
| 2010 | 36 | 38 |
| 2011 | 48 | 71 |
| 2012 | 51 | 68 |
| 2013 | 65 | 59 |
| 2014 | 70 | 72 |
| 2015 | 72 | 79 |
| 2016 | 59 | 69 |
| 2017 | 62 | 82 |
| 2018 | 63 | 69 |
| 2019 | 68 | 66 |
| 2020 | 73 | 75 |
| 2021 | 54 | 72 |
| 2022 | 70 | 90 |
| 2023 | 57 | 66 |
| 2024 | 75 | 83 |
| 2025 | 68 | 66 |
| 2026 | 35 | 53 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Purlin construction with water flow system for flat panels22 Sep 2026US 12,742,324 B2
- Seal assembly method and apparatus18 Aug 2026US 12,709,897 B2Platinum Technologies Ltd.
- Gutter hanger and covering system18 Aug 2026US 12,709,898 B2E-Z Products LLC
- Wind resistant rain gutter assembly for creating perimeter vertical air barriers11 Aug 2026US 12,703,978 B2
- Covered rain gutter system11 Aug 2026US 12,703,979 B2Englert, Inc.
- Additional laminar dripper1 Oct 2026US 2026/0297949 A1
- Gutter cover1 Oct 2026US 2026/0297950 A1
- Edge flashing apparatus, and a method of using same17 Sep 2026US 2026/0275722 A1
- Roof-draining member and roof provided with roof-draining member10 Sep 2026US 2026/0266053 A1Sekisui House, Ltd.
- Gutter Downspout Assembly10 Sep 2026US 2026/0266054 A1
Most cited
By later US patents