E01C 11/227
Gutters
Official title: {Gutters; Channels (E01C11/223 takes precedence; permanently installed flushing means E01H3/04); Roof drainage discharge ducts set in sidewalks}
E01C11/227 (Gutters) appears on 135 US grants and 109 published applications in this corpus.
Search patents in E01C- Granted patents
- 135
- Published applications
- 109
- Assignees
- 70
- Inventors
- 220
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 6 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 1 |
| 2003 | 1 | 3 |
| 2004 | 1 | 2 |
| 2005 | 3 | 8 |
| 2006 | 4 | 5 |
| 2007 | 3 | 4 |
| 2008 | 4 | 6 |
| 2009 | 3 | 8 |
| 2010 | 5 | 2 |
| 2011 | 3 | 5 |
| 2012 | 4 | 3 |
| 2013 | 2 | 4 |
| 2014 | 1 | 3 |
| 2015 | 3 | 3 |
| 2016 | 3 | 5 |
| 2017 | 3 | 4 |
| 2018 | 4 | 4 |
| 2019 | 5 | 7 |
| 2020 | 4 | 5 |
| 2021 | 4 | 5 |
| 2022 | 3 | 7 |
| 2023 | 3 | 4 |
| 2024 | 5 | 5 |
| 2025 | 3 | 3 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for making a grated trench channel29 Sep 2026US 12,747,545 B2J K Williams Contracting Pty Ltd
- Universal anchor for use with a grating frame24 Mar 2026US 12,584,308 B2Ohio Gratings, Inc.
- Linear or trench drain systems10 Feb 2026US 12,546,102 B2Advanced Drainage Systems, Inc.
- Multilayer precast paved road19 Aug 2025US 12,392,093 B2Obayashi Road Corporation
- System and a method for building a road12 Aug 2025US 12,385,193 B2PR Licensing B.V.
- Drainage apparatus with locking mechanism21 May 2026US 2026/0139466 A1Advanced Drainage Systems, Inc.
- Universal anchor for use with a grating frame19 Mar 2026US 2026/0078579 A1Ohio Gratings, Inc.
- Channel support for forming concrete trench drain2 Oct 2025US 2025/0305221 A1BG-Graspointner Inc.
- Inlet Guard24 Apr 2025US 2025/0129591 A1
- Universal anchor for use with a grating frame9 Jan 2025US 2025/0012073 A1Ohio Gratings, Inc.
Most cited
By later US patents
- Chemical safety conduit or trench91US 4,940,359 AACO Polymer Products, Inc. · 1990
- Trench drain system72US 5,529,436 ATuf-Tite, Inc. · 1996
- Elongated bendable drainage mat71US 4,572,700 AMonsanto Company · 1986
- Load transfer cell assembly for concrete pavement transverse joints59US 4,648,739 A1987
- Modular drain system58US 4,490,067 AQuaker Plastic Corporation · 1984