E04F 21/1844
By applying them one by one
Official title: {by applying them one by one}
E04F21/1844 (By applying them one by one) appears on 292 US grants and 251 published applications in this corpus.
Search patents in E04F- Granted patents
- 292
- Published applications
- 251
- Assignees
- 87
- Inventors
- 463
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 5 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 9 | 0 |
| 1995 | 6 | 0 |
| 1996 | 2 | 0 |
| 1997 | 10 | 0 |
| 1998 | 3 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 2 |
| 2002 | 14 | 13 |
| 2003 | 9 | 9 |
| 2004 | 12 | 10 |
| 2005 | 9 | 12 |
| 2006 | 4 | 10 |
| 2007 | 10 | 12 |
| 2008 | 3 | 19 |
| 2009 | 14 | 9 |
| 2010 | 5 | 7 |
| 2011 | 2 | 8 |
| 2012 | 2 | 8 |
| 2013 | 5 | 12 |
| 2014 | 9 | 6 |
| 2015 | 7 | 12 |
| 2016 | 10 | 9 |
| 2017 | 6 | 9 |
| 2018 | 13 | 12 |
| 2019 | 8 | 11 |
| 2020 | 15 | 15 |
| 2021 | 10 | 7 |
| 2022 | 8 | 16 |
| 2023 | 5 | 9 |
| 2024 | 11 | 3 |
| 2025 | 5 | 4 |
| 2026 | 7 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 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
- Slab securement tools, systems, and methods19 May 2026US 12,631,290 B2Cambria Company LLC
- Template24 Mar 2026US 12,584,318 B2Illinois Tool Works Inc.
- Tool for installation of nickel-gap flat siding product24 Sep 2026US 2026/0286719 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
- Device for Leveling and Aligning Tiles and Method for Leveling and Aligning Tiles5 Mar 2026US 2026/0062926 A1Acufloor, LLC
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
- Tile alignment and leveling device and method for using the same88US 7,621,100 B2Davinci Italia/USA Group, LLC · 2009
- Mechanical locking of floor panels69US 10,006,210 B2Välinge Innovation AB · 2018