E04F 21/026
For applying adhesive or joint compound to joint tapes, in particular drywall
Official title: {for applying adhesive or joint compound to joint tapes, in particular drywall tapes (joint tapes E04F13/042; drywall taper tools E04F21/1657)}
E04F21/026 (For applying adhesive or joint compound to joint tapes, in particular drywall) appears on 115 US grants and 112 published applications in this corpus.
Search patents in E04F- Granted patents
- 115
- Published applications
- 112
- Assignees
- 41
- Inventors
- 171
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 7 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 4 | 4 |
| 2003 | 4 | 3 |
| 2004 | 3 | 5 |
| 2005 | 2 | 6 |
| 2006 | 1 | 2 |
| 2007 | 0 | 8 |
| 2008 | 2 | 2 |
| 2009 | 4 | 9 |
| 2010 | 4 | 1 |
| 2011 | 5 | 6 |
| 2012 | 1 | 1 |
| 2013 | 5 | 2 |
| 2014 | 3 | 3 |
| 2015 | 0 | 3 |
| 2016 | 2 | 3 |
| 2017 | 0 | 4 |
| 2018 | 5 | 11 |
| 2019 | 3 | 9 |
| 2020 | 11 | 9 |
| 2021 | 3 | 3 |
| 2022 | 4 | 5 |
| 2023 | 2 | 4 |
| 2024 | 3 | 4 |
| 2025 | 2 | 2 |
| 2026 | 6 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Container with interchangeable liner1 Sep 2026US 12,723,413 B2
- Automatic drywall compound and drywall tape applicator28 Jul 2026US 12,692,711 B2
- Joint support including encapsulated adhesive14 Jul 2026US 12,680,318 B2CertainTeed Gypsum, Inc.
- Perlite-free, lightweight setting-type joint compound compositions28 Apr 2026US 12,612,336 B2Knauf Gips KG
- Plasterboard finishing tools21 Apr 2026US 12,607,023 B2Tape-Pro Drywall Tools Pty Limited
- Joint support including encapsulated adhesive1 Oct 2026US 2026/0297962 A1
- Device for applying a tape23 Jul 2026US 2026/0210134 A1Rokntools
- Construction workstation with rotatable platform and ceiling panel installation platform16 Jul 2026US 2026/0201709 A1
- Automated drywall painting system and method23 Oct 2025US 2025/0327317 A1Canvas Construction, Inc.
- Automated drywall planning system and method30 Jan 2025US 2025/0034886 A1Canvas Construction, Inc.
Most cited
By later US patents
- Drywall taping and texture system using bladder pump with pneumatic flip/flop logic remote control57US 6,712,238 B1Spraytex, Inc. · 2004
- Self-contained dry wall taper35US 4,086,121 A1978
- Automated wallboard taping apparatus and process therefor32US 5,279,700 ADrywall Technologies, Inc. · 1994
- Grout pumps, control boxes and applicator tools, and methods for using the same32US 6,382,922 B1MudMaster, LLC · 2002
- Apparatus for applying tape and adhesive to wallboard joints31US 4,090,914 AService Equipment Design Co., Inc. · 1978