E04F 21/18
Implements for finishing work on buildings: for setting wall or ceiling slabs
Official title: for setting wall or ceiling slabs or plates (tools for mosaic work B44C)
E04F21/18 (Implements for finishing work on buildings: for setting wall or ceiling slabs) appears on 628 US grants and 526 published applications in this corpus.
Search patents in E04F- Granted patents
- 628
- Published applications
- 526
- Assignees
- 201
- Inventors
- 928
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 5 | 0 |
| 1978 | 9 | 0 |
| 1979 | 7 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 6 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 12 | 0 |
| 1988 | 3 | 0 |
| 1989 | 7 | 0 |
| 1990 | 7 | 0 |
| 1991 | 7 | 0 |
| 1992 | 11 | 0 |
| 1993 | 9 | 0 |
| 1994 | 17 | 0 |
| 1995 | 14 | 0 |
| 1996 | 7 | 0 |
| 1997 | 18 | 0 |
| 1998 | 8 | 0 |
| 1999 | 14 | 0 |
| 2000 | 10 | 0 |
| 2001 | 13 | 7 |
| 2002 | 17 | 20 |
| 2003 | 20 | 14 |
| 2004 | 16 | 18 |
| 2005 | 13 | 23 |
| 2006 | 11 | 23 |
| 2007 | 11 | 20 |
| 2008 | 7 | 31 |
| 2009 | 20 | 13 |
| 2010 | 12 | 14 |
| 2011 | 7 | 10 |
| 2012 | 7 | 12 |
| 2013 | 13 | 25 |
| 2014 | 19 | 13 |
| 2015 | 17 | 28 |
| 2016 | 23 | 23 |
| 2017 | 18 | 17 |
| 2018 | 23 | 29 |
| 2019 | 17 | 30 |
| 2020 | 33 | 30 |
| 2021 | 20 | 24 |
| 2022 | 21 | 31 |
| 2023 | 16 | 19 |
| 2024 | 24 | 17 |
| 2025 | 16 | 18 |
| 2026 | 14 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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.
- Drywall hanging tool29 Sep 2026US 12,747,597 B2
- Method for constructing access floor by using unmanned robot22 Sep 2026US 12,742,332 B2Samsung C&T Corporation
- Lippage control system with stretchable strap portion15 Sep 2026US 12,735,898 B2Dtm Innovations LLC
- Siding installation apparatus25 Aug 2026US 12,716,251 B2General Tools & Instruments Company LLC
- Tool for installation of nickel-gap flat siding product24 Sep 2026US 2026/0286719 A1
- Methods and systems for pattern oriented tile installation24 Sep 2026US 2026/0286720 A1
- Systems, methods and devices for processing and handling plasterboard27 Aug 2026US 2026/0249469 A1EC8 Consulting Limited
- Tool for Installing Sheetrock to a Ceiling by a Single Tradesman27 Aug 2026US 2026/0250964 A1
- Construction workstation with rotatable platform and ceiling panel installation platform16 Jul 2026US 2026/0201709 A1
Most cited
By later US patents
- 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
- Tile and mounting mat assembly125US 5,323,575 A1994
- Mechanical locking of floor panels89US 9,340,974 B2Välinge Innovation AB · 2016
- Safety support structure88US 5,056,753 A1991
- Tile alignment and leveling device and method for using the same88US 7,621,100 B2Davinci Italia/USA Group, LLC · 2009