E04F 2201/09
Puzzle-type connections for interlocking male and female panel edge-parts
E04F2201/09 (Puzzle-type connections for interlocking male and female panel edge-parts) appears on 168 US grants and 220 published applications in this corpus.
Search patents in E04F- Granted patents
- 168
- Published applications
- 220
- Assignees
- 88
- Inventors
- 244
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 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 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 4 | 9 |
| 2004 | 4 | 6 |
| 2005 | 3 | 9 |
| 2006 | 0 | 7 |
| 2007 | 1 | 14 |
| 2008 | 2 | 7 |
| 2009 | 4 | 8 |
| 2010 | 7 | 11 |
| 2011 | 9 | 11 |
| 2012 | 7 | 13 |
| 2013 | 10 | 12 |
| 2014 | 16 | 9 |
| 2015 | 14 | 18 |
| 2016 | 9 | 15 |
| 2017 | 13 | 7 |
| 2018 | 4 | 11 |
| 2019 | 14 | 8 |
| 2020 | 3 | 6 |
| 2021 | 7 | 6 |
| 2022 | 4 | 9 |
| 2023 | 8 | 12 |
| 2024 | 5 | 6 |
| 2025 | 4 | 2 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- E04F 2201/095With both connection parts, i.e. male and female connection parts alternating onIndexing code113
- E04F 2201/091With the edge-parts forming part of the panel bodyIndexing code106
- E04F 2201/098Wherein the interlocking male and female edge-parts have a dovetail, mushroom orIndexing code48
- E04F 2201/096With only one type of connection parts, i.e. with male or femaleIndexing code28
- E04F 2201/093With the edge-parts being separate elements not being part of the panelIndexing code2
Recent patents
- Temporary walkway system with modular tiles interlocking in three-dimensions15 Sep 2026US 12,735,846 B2Plastic Safety Systems, Inc.
- Interlockable wall reinforcement panel, wall reinforcement assembly and method for wall reinforcement21 Jul 2026US 12,687,030 B2B. de Lange Holding B.V.
- Floor element for forming a floor covering and a floor covering5 May 2026US 12,618,244 B2Unilin BV
- Floor panel14 Apr 2026US 12,601,187 B2Unilin BV
- Panel connection25 Nov 2025US 12,480,314 B2
- Floor panel8 Oct 2026US 2026/0308921 A1Unilin BV
- Flooring component and flooring2 Jul 2026US 2026/0185362 A1Changzhou Zero Point Wood Industry Co., Ltd.
- Flooring tile with interlocking connectors26 Feb 2026US 2026/0055618 A1Tarkett GDL
- Floor Tile with Improved Connection System10 Jul 2025US 2025/0223812 A1
- Floor panel9 Jan 2025US 2025/0012097 A1Unilin BV
Most cited
By later US patents
- Vertically joined floor elements comprising a combination of different floor elements314US 6,536,178 B1Pergo (Europe) AB · 2003
- Interlocking rubber mat188US 4,287,693 APawling Rubber Corporation · 1981
- Tapered dovetail joint101US 6,357,194 B12002
- Interlocking tiles88US 6,526,705 B12003
- Quick-assembly interlocking tile82US 5,791,114 A1998