E04F 2201/04
Joining sheets or plates or panels: other details of tongues or grooves
Official title: Other details of tongues or grooves
E04F2201/04 (Joining sheets or plates or panels: other details of tongues or grooves) appears on 742 US grants and 972 published applications in this corpus.
Search patents in E04F- Granted patents
- 742
- Published applications
- 972
- Assignees
- 202
- Inventors
- 503
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 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 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 7 | 0 |
| 2001 | 6 | 4 |
| 2002 | 7 | 15 |
| 2003 | 8 | 15 |
| 2004 | 9 | 21 |
| 2005 | 11 | 14 |
| 2006 | 7 | 15 |
| 2007 | 5 | 9 |
| 2008 | 9 | 26 |
| 2009 | 10 | 17 |
| 2010 | 15 | 17 |
| 2011 | 12 | 19 |
| 2012 | 16 | 17 |
| 2013 | 21 | 27 |
| 2014 | 29 | 29 |
| 2015 | 26 | 32 |
| 2016 | 28 | 31 |
| 2017 | 24 | 37 |
| 2018 | 33 | 43 |
| 2019 | 43 | 50 |
| 2020 | 49 | 68 |
| 2021 | 43 | 80 |
| 2022 | 49 | 63 |
| 2023 | 58 | 82 |
| 2024 | 74 | 90 |
| 2025 | 80 | 91 |
| 2026 | 47 | 60 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- E04F 2201/043With tongues and grooves being formed by projecting or recessed parts ofIndexing code386
- E04F 2201/042With grooves positioned on the rear-side of the panelIndexing code223
- E04F 2201/044With tongues or grooves comprising elements which are not manufactured in oneIndexing code214
- E04F 2201/041Tongues or grooves with slits or cuts for expansion or flexibilityIndexing code166
Recent patents
- Methods for manufacturing a decorative panel, and decorative panels6 Oct 2026US 12,752,570 B2Unilin BV
- Panel, covering, and method of uncoupling two interconnected panels6 Oct 2026US 12,753,613 B2i4F Licensing NV
- Panel, covering, and method for manufacturing such a panel29 Sep 2026US 12,747,594 B2i4F Licensing NV
- Decorative panel and method of producing such a panel29 Sep 2026US 12,747,595 B2i4F Licensing NV
- Wall or floor panel with locking means suitable for herringbone-pattern installation22 Sep 2026US 12,742,329 B2Surface Technologies GmbH & Co. KG
- Decorative panel and method to make such decorative panel8 Oct 2026US 2026/0308382 A1Unilin BV
- Panels, method for manufacturing panels, mixture and lacquer8 Oct 2026US 2026/0308391 A1Unilin BV
- Building panels comprising a locking system8 Oct 2026US 2026/0308917 A1Välinge Innovation AB
- Panel for forming a covering8 Oct 2026US 2026/0308919 A1Unilin BV
- Floor panel8 Oct 2026US 2026/0308921 A1Unilin BV
Most cited
By later US patents
- Snap-together flooring system515US 5,295,341 ANikken Seattle, Inc. · 1994
- System for joining building boards455US 6,182,410 B2Valinge Aluminium AB · 2001
- Panel elements407US 6,769,219 B2hulsta-Werke Huls GmbH & Co. KG · 2004
- Sandwich elements in the form of slabs, shells and the like383US 5,348,778 ABayer Aktiengesellschaft · 1994
- Flooring panel or wall panel and use thereof371US 6,418,683 B1Perstorp Flooring AB · 2002