E01C 9/10
Steel gratings
Official title: Steel gratings {; Gratings made of material other than steel}({E01C9/001 - E01C9/02, E01C9/06 take precedence; metal gratings for bridge floorings E01D19/125; } gully gratings E03F5/06)
E01C9/10 (Steel gratings) appears on 11 US grants and 18 published applications in this corpus.
Search patents in E01C- Granted patents
- 11
- Published applications
- 18
- Assignees
- 9
- Inventors
- 35
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 2 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 1 | 6 |
| 2025 | 1 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and apparatus for lifting grates6 Jan 2026US 12,515,933 B2Ohio Gratings, Inc.
- Safety device18 Mar 2025US 12,252,848 B2
- Coupling device and coupling method for coupling subject member30 Jul 2024US 12,049,386 B2Riken Kogyo Inc.
- Stamped steel detectable warning tile and method of manufacture16 Feb 2021US 10,920,378 B2Tuf-Tite, Inc.
- Ground reinforcing structure and related method4 Aug 2020US 10,731,303 B2Brentwood Industries, Inc.
- Grating assembly having variable height transverse bars23 Jul 2026US 2026/0210061 A1Ohio Gratings, Inc.
- Method and apparatus for lifting grates2 Apr 2026US 2026/0091963 A1Ohio Gratings, Inc.
- Ladder-like grating, and method for producing a ladder-like grating5 Jun 2025US 2025/0177887 A1Aco Ahlmann SE & Co. KG
- Grating and method of manufacturing a grating15 Aug 2024US 2024/0271406 A1Stormtech Pty Limited
- Method and apparatus for lifting grates11 Jul 2024US 2024/0228250 A9Ohio Gratings, Inc.
Most cited
By later US patents
- Grid plate of plastic material49US 4,826,351 ASpiess Kunstoff-Recycling GmbH & Co. · 1989
- Ground reinforcing structure and related method15US 10,731,303 B2Brentwood Industries, Inc. · 2020
- Grating system11US 7,393,153 B2Ohio Gratings, Inc. · 2008
- Grating system10US 7,121,759 B2Ohio Gratings, Inc. · 2006
- Modular fire prevention flooring10US 9,506,245 B2Safespill Systems LLC · 2016