E06C 1/28
Multi-part
Official title: multi-part (with movable supporting struts formed as ladders E06C1/18)
E06C1/28 (Multi-part) appears on 37 US grants and 33 published applications in this corpus.
Search patents in E06C- Granted patents
- 37
- Published applications
- 33
- Assignees
- 19
- Inventors
- 38
- Latest grant
- 15 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 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 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 3 |
| 2011 | 3 | 1 |
| 2012 | 1 | 4 |
| 2013 | 2 | 1 |
| 2014 | 2 | 3 |
| 2015 | 5 | 4 |
| 2016 | 1 | 2 |
| 2017 | 1 | 1 |
| 2018 | 2 | 2 |
| 2019 | 2 | 3 |
| 2020 | 5 | 1 |
| 2021 | 0 | 2 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 2 | 3 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Ladders, ladder components and related methods15 Jul 2025US 12,359,508 B2Little Giant Ladder Systems, LLC
- Ladders, ladder components and related methods8 Jul 2025US 12,352,107 B2Little Giant Ladder Systems, LLC
- Ladders, ladder components and related methods17 Oct 2023US 11,788,351 B2Little Giant Ladder Systems, LLC
- Ladder stabilization support assembly15 Dec 2020US 10,865,602 B1
- Swimming pool ladder with safety gate8 Dec 2020US 10,858,888 B2Intex Marketing Ltd.
- Ladder systems having a base and interchangeable attachments14 Aug 2025US 2025/0257610 A1Blue Moon Designs, LLC
- Construction Disposition Introduced in Multifunctional Ladder7 Aug 2025US 2025/0250804 A1
- Ladders, ladder components and related methods22 May 2025US 2025/0163757 A1Little Giant Ladder Systems, LLC
- Ladders, ladder components and related methods13 Jun 2024US 2024/0191571 A1Little Giant Ladder Systems, LLC
- Ladders, ladder components and related methods2 Dec 2021US 2021/0372199 A1Little Giant Ladder Systems, LLC
Most cited
By later US patents
- Ladders, ladder components and related methods85US 8,186,481 B2Wing Enterprises, Incorporated · 2012
- Collapsible stage55US 4,580,776 A1986
- Electrician's ladder and method29US 7,886,872 B2Werner Co. · 2011
- Blow molded articles and method of making26US 6,102,156 AConfer Plastics, Inc. · 2000
- Mobile bulk carrier/access/fall protection system23US 8,746,403 B1Sam Carbis Asset Management, LLC · 2014