E04F 21/00
Implements for finishing work on buildings
Official title: Implements for finishing work on buildings (for working or treating building elements of stone or stone-like material B28D)
E04F21/00 (Implements for finishing work on buildings) appears on 3,456 US grants and 2,830 published applications in this corpus.
Search patents in E04F- Granted patents
- 3,456
- Published applications
- 2,830
- Assignees
- 1,021
- Inventors
- 4,870
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 28 | 0 |
| 1977 | 24 | 0 |
| 1978 | 35 | 0 |
| 1979 | 22 | 0 |
| 1980 | 32 | 0 |
| 1981 | 26 | 0 |
| 1982 | 26 | 0 |
| 1983 | 28 | 0 |
| 1984 | 19 | 0 |
| 1985 | 22 | 0 |
| 1986 | 31 | 0 |
| 1987 | 45 | 0 |
| 1988 | 50 | 0 |
| 1989 | 59 | 0 |
| 1990 | 64 | 0 |
| 1991 | 63 | 0 |
| 1992 | 49 | 0 |
| 1993 | 73 | 0 |
| 1994 | 63 | 0 |
| 1995 | 58 | 0 |
| 1996 | 45 | 0 |
| 1997 | 68 | 0 |
| 1998 | 60 | 0 |
| 1999 | 71 | 0 |
| 2000 | 79 | 0 |
| 2001 | 87 | 19 |
| 2002 | 88 | 91 |
| 2003 | 104 | 89 |
| 2004 | 82 | 98 |
| 2005 | 71 | 143 |
| 2006 | 75 | 146 |
| 2007 | 69 | 122 |
| 2008 | 54 | 131 |
| 2009 | 77 | 122 |
| 2010 | 91 | 106 |
| 2011 | 81 | 105 |
| 2012 | 81 | 74 |
| 2013 | 88 | 110 |
| 2014 | 99 | 99 |
| 2015 | 80 | 112 |
| 2016 | 108 | 112 |
| 2017 | 90 | 108 |
| 2018 | 100 | 119 |
| 2019 | 112 | 130 |
| 2020 | 125 | 135 |
| 2021 | 95 | 120 |
| 2022 | 91 | 139 |
| 2023 | 97 | 120 |
| 2024 | 115 | 121 |
| 2025 | 94 | 86 |
| 2026 | 62 | 73 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- E04F 21/02Implements for finishing work on buildings: for applying plasticised masses to surfaces1,086
- E04F 21/20Implements for finishing work on buildings: for laying flooring941
- E04F 21/18Implements for finishing work on buildings: for setting wall or ceiling slabs628
- E04F 21/165Implements for finishing work on buildings: for finishing joints503
- E04F 21/0092Separate provisional spacers used between adjacent floor or wall tiles232
- E04F 21/0007Implements for finishing work on buildings: for mounting doors, windows or frames186
- E04F 21/0076Implements for finishing work on buildings: for marking and cutting tiles110
- E04F 21/28Implements for finishing work on buildings: for glazing76
All 15 subgroupsShow fewer
- E04F 21/26Implements for finishing work on buildings: for mounting staircases59
- E04F 21/003Implements for finishing work on buildings: for marking doors, windows or frames57
- E04F 21/0069Implements for finishing work on buildings: for cutting or mounting plinths39
- E04F 21/0038Implements for finishing work on buildings: for fitting sealing strips or like36
- E04F 21/0084Implements for removing filling material from joints36
- E04F 21/0053Implements for finishing work on buildings: for installing edge-protecting borders27
- E04F 21/0046Implements for finishing work on buildings: for reshaping butt joints between adjacent13
Recent patents
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- 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
- Plug cutting tool and related method of use15 Sep 2026US 12,734,594 B2National Nail Corp.
- Mud pan and tape holding device8 Oct 2026US 2026/0305804 A1
- Fastener installation tool and method of fastening boards therewith1 Oct 2026US 2026/0295787 A1Trex Company, Inc.
- Joint support including encapsulated adhesive1 Oct 2026US 2026/0297962 A1
- Automated wall finishing system and method1 Oct 2026US 2026/0297963 A1JLG Industries, Inc.
- Pneumatic Assisted Applicator For Drywall Tape1 Oct 2026US 2026/0297964 A1
Most cited
By later US patents
- Mortar joint pointing guide475US 4,579,378 A1986
- Hangtag for plaster trowel355US 7,296,772 B22007
- Joint320US 6,332,733 B1Hamberger Industriewerke GmbH · 2001
- Mechanical locking system for panels and method of installing same268US 7,841,145 B2Välinge Innovation AB · 2010
- Portable dance floor201US 5,465,546 A1995