E04F 21/0092
Separate provisional spacers used between adjacent floor or wall tiles
Official title: {Separate provisional spacers used between adjacent floor or wall tiles (E04F13/0889, E04F15/02005 takes precedence)}
E04F21/0092 (Separate provisional spacers used between adjacent floor or wall tiles) appears on 232 US grants and 259 published applications in this corpus.
Search patents in E04F- Granted patents
- 232
- Published applications
- 259
- Assignees
- 74
- Inventors
- 244
- 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 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 5 |
| 2003 | 7 | 4 |
| 2004 | 2 | 3 |
| 2005 | 2 | 2 |
| 2006 | 0 | 5 |
| 2007 | 2 | 5 |
| 2008 | 0 | 8 |
| 2009 | 4 | 3 |
| 2010 | 4 | 5 |
| 2011 | 9 | 6 |
| 2012 | 5 | 5 |
| 2013 | 6 | 6 |
| 2014 | 13 | 11 |
| 2015 | 5 | 16 |
| 2016 | 20 | 16 |
| 2017 | 8 | 7 |
| 2018 | 13 | 19 |
| 2019 | 11 | 22 |
| 2020 | 19 | 20 |
| 2021 | 18 | 17 |
| 2022 | 11 | 28 |
| 2023 | 12 | 12 |
| 2024 | 17 | 11 |
| 2025 | 12 | 10 |
| 2026 | 9 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Ceramic tile leveling bracket, pushing and clamping pliers, and ceramic tile leveling and laying system6 Oct 2026US 12,753,615 B2Hangzhou Great Star Industrial Co., Ltd.
- Lippage control system with stretchable strap portion15 Sep 2026US 12,735,898 B2Dtm Innovations LLC
- Tile installation systems and methods of using same21 Jul 2026US 12,687,027 B2Builders Adventure, Inc.
- Spacer for joining and seam sealing floor coverings16 Jun 2026US 12,655,643 B2
- Tile leveler21 Apr 2026US 12,607,024 B2
- Strip-shaped plate13 Aug 2026US 2026/0234941 A1
- Device for Leveling and Aligning Tiles and Method for Leveling and Aligning Tiles11 Jun 2026US 2026/0160075 A1Acufloor, LLC
- Device for Leveling and Aligning Tiles and Method for Leveling and Aligning Tiles11 Jun 2026US 2026/0160076 A1Acufloor, LLC
- Device for Leveling and Aligning Tiles and Method for Leveling and Aligning Tiles11 Jun 2026US 2026/0160077 A1Acufloor, LLC
- A tile or paver spacer and levelling assembly21 May 2026US 2026/0139493 A1Helix Advancements Pty Ltd
Most cited
By later US patents
- Tile spacer and leveler196US 7,257,926 B12007
- Mechanical locking of floor panels, methods to install and uninstall panels, a method and an equipment to produce the locking system, a method to connect a displaceable tongue to a panel and a tongue blank140US 8,627,862 B2Välinge Innovation AB · 2014
- System for aligning uneven thickness panel sections103US 4,397,125 A1983
- Device for leveling and aligning tiles and method for leveling and aligning tiles99US 7,992,354 B2Q.E.P. Co. Inc. · 2011
- Mechanical locking of floor panels89US 9,340,974 B2Välinge Innovation AB · 2016