E04F 21/1652
For smoothing and shaping joint compound to a desired contour
Official title: {for smoothing and shaping joint compound to a desired contour}
E04F21/1652 (For smoothing and shaping joint compound to a desired contour) appears on 187 US grants and 178 published applications in this corpus.
Search patents in E04F- Granted patents
- 187
- Published applications
- 178
- Assignees
- 70
- Inventors
- 280
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 1 |
| 2002 | 2 | 2 |
| 2003 | 2 | 4 |
| 2004 | 1 | 2 |
| 2005 | 1 | 13 |
| 2006 | 3 | 7 |
| 2007 | 3 | 12 |
| 2008 | 3 | 10 |
| 2009 | 3 | 9 |
| 2010 | 7 | 8 |
| 2011 | 6 | 10 |
| 2012 | 7 | 2 |
| 2013 | 6 | 4 |
| 2014 | 6 | 3 |
| 2015 | 6 | 10 |
| 2016 | 4 | 8 |
| 2017 | 4 | 11 |
| 2018 | 12 | 9 |
| 2019 | 6 | 11 |
| 2020 | 16 | 12 |
| 2021 | 3 | 7 |
| 2022 | 8 | 3 |
| 2023 | 4 | 6 |
| 2024 | 6 | 4 |
| 2025 | 7 | 6 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Caulk bead removal tool66US 6,035,536 AVancouver Tool Corporation · 2000
- Filleting attachment for a caulking gun49US 5,017,113 A1991
- Tool for finishing taped dry wall joints47US 4,592,797 A1986
- Mastic applicator and adjustable blade assembly40US 4,516,868 AHawk Industries, Inc. · 1985
- Caulk bead tool37US 6,219,878 B1Vancouver Tool Corporation · 2001