E06C 7/087
With a connecting piece installed around the rung
Official title: {with a connecting piece installed around the rung}
E06C7/087 (With a connecting piece installed around the rung) appears on 26 US grants and 33 published applications in this corpus.
Search patents in E06C- Granted patents
- 26
- Published applications
- 33
- Assignees
- 17
- Inventors
- 53
- Latest grant
- 8 Oct 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 1 |
| 2010 | 1 | 3 |
| 2011 | 0 | 2 |
| 2012 | 1 | 2 |
| 2013 | 3 | 2 |
| 2014 | 1 | 2 |
| 2015 | 1 | 2 |
| 2016 | 1 | 2 |
| 2017 | 0 | 0 |
| 2018 | 4 | 2 |
| 2019 | 1 | 5 |
| 2020 | 2 | 2 |
| 2021 | 1 | 2 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 1 | 1 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Ladder with wide rung8 Oct 2024US 12,110,742 B2Werner Co.
- In pool ladder assembly28 Feb 2023US 11,591,855 B2
- Locking assembly for a telescoping ladder16 Nov 2021US 11,174,678 B2Core Distribution, Inc.
- Ladder, wide rung and method29 Dec 2020US 10,876,355 B2Werner Co.
- Extendable / retractable ladder25 Aug 2020US 10,753,149 B2Core Distribution, Inc.
Most cited
By later US patents
- Rigidified step ladder39US 7,108,103 B2Cosco Management, Inc. · 2006
- Apparatus and methods for making rail-to-rung joints for ladders and joints for other structural elements33US 4,656,721 AR. D. Werner Co., Inc. · 1987
- Process for formation of high strength aluminum ladder structures23US 4,766,664 AAlumax Extrusions, Inc. · 1988
- Ladder17US 4,967,879 AZarges Leichtbau GmbH · 1990
- Ladder and method of construction15US 5,427,198 A1995