E04F 2201/021
With separate protrusions
Official title: with separate protrusions
E04F2201/021 (With separate protrusions) appears on 127 US grants and 157 published applications in this corpus.
Search patents in E04F- Granted patents
- 127
- Published applications
- 157
- Assignees
- 67
- Inventors
- 146
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 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 | 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 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 3 |
| 2004 | 1 | 2 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 2 | 3 |
| 2009 | 2 | 4 |
| 2010 | 2 | 4 |
| 2011 | 1 | 2 |
| 2012 | 2 | 5 |
| 2013 | 5 | 10 |
| 2014 | 6 | 5 |
| 2015 | 11 | 14 |
| 2016 | 14 | 20 |
| 2017 | 13 | 13 |
| 2018 | 13 | 16 |
| 2019 | 9 | 11 |
| 2020 | 14 | 11 |
| 2021 | 5 | 5 |
| 2022 | 8 | 6 |
| 2023 | 2 | 5 |
| 2024 | 5 | 5 |
| 2025 | 2 | 8 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System and method for fitting floor modules9 Jun 2026US 12,650,021 B2Issg Sports Innovations, Lda
- Panel for composing a floor covering or wall covering, panel system, and method13 Jan 2026US 12,523,046 B2i4F Licensing NV
- Panel and method for manufacturing such a panel17 Jun 2025US 12,331,527 B2Unilin BV
- Mechanical locking system for floor panels28 Jan 2025US 12,209,417 B2Ceraloc Innovation AB
- Material set and method of installing the same15 Oct 2024US 12,116,777 B2Takeshin Package Co., Ltd.
- Drop deck flooring panel30 Jul 2026US 2026/0218522 A1Sur-Loc Holdings, LLC
- Panel System for Composing a Floor Covering or Wall Covering, Panel, and Method16 Apr 2026US 2026/0103898 A1i4F Licensing NV
- Panel for Composing a Floor Covering or Wall Covering, Panel System, and Method19 Feb 2026US 2026/0049480 A1i4F Licensing NV
- Integrated modular frames with factory-affixed tiles for groutless tiling2 Oct 2025US 2025/0305300 A1
- Panel and method for manufacturing such a panel21 Aug 2025US 2025/0263939 A1Unilin BV
Most cited
By later US patents
- Structural panels and method of connecting same263US 6,862,857 B2Kronotec AG · 2005
- Portable multi-section activity floor and method of manufacture and installation249US 6,173,548 B12001
- Panel with slip-on profile228US 7,337,588 B12008
- Mechanical locking of floor panels with vertical snap folding225US 8,353,140 B2Välinge Innovation AB · 2013
- Portable dance floor196US 5,634,309 A1997