WorkTools, Inc.
CHATSWORTH, CA, US· latest recorded location
WorkTools, Inc. is named on 91 US grants and 58 published applications in this corpus. Its most frequent classification is B25C (Hand-held nailing or stapling tools).
- Granted patents
- 91
- Published applications
- 58
- Inventors
- 11
- Granted in 2026 so far
- 1
- Most recent grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 8 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 6 | 0 |
| 2001 | 1 | 0 |
| 2002 | 4 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 3 |
| 2005 | 5 | 3 |
| 2006 | 5 | 7 |
| 2007 | 8 | 7 |
| 2008 | 4 | 6 |
| 2009 | 4 | 3 |
| 2010 | 6 | 1 |
| 2011 | 4 | 3 |
| 2012 | 2 | 4 |
| 2013 | 3 | 1 |
| 2014 | 1 | 4 |
| 2015 | 2 | 0 |
| 2016 | 1 | 1 |
| 2017 | 1 | 4 |
| 2018 | 3 | 4 |
| 2019 | 3 | 0 |
| 2020 | 2 | 3 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 1 | 1 |
| 2024 | 1 | 1 |
| 2025 | 2 | 1 |
| 2026 | 1 | 1 |
By publication year. 2026 runs to 8 Oct.
Technology areas
Share of 149 documents
- B25CHand-held nailing or stapling tools101
- B25BTools or bench devices not otherwise provided for, for fastening, connecting, disengaging16
- B26DCutting9
- Y10TTechnical subjects covered by former us classification9
- B26FPerforating8
- Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6
- B27FDovetailed work4
- F16DCouplings for transmitting rotation4
- A47BTables2
- B23DPlaning2
Recent patents
- High efficiency torsion spring tacker8 Sep 2026US 12,728,509 B2
- High efficiency torsion spring tacker10 Jun 2025US 12,325,115 B2
- Compact electric spring energized desktop stapler13 May 2025US RE50,425 E1
- High efficiency torsion spring tacker14 May 2024US 11,981,010 B2
- Bottom loading pliers stapler15 Aug 2023US 11,724,377 B2
- High efficiency torsion spring tacker24 Sep 2026US 2026/0284851 A1
- High efficiency torsion spring tacker4 Sep 2025US 2025/0276429 A1
- High efficiency torsion spring tacker29 Aug 2024US 2024/0286258 A1
- High efficiency torsion spring tacker5 Jan 2023US 2023/0001557 A1
- Compact electric spring energized desktop stapler3 Dec 2020US 2020/0376641 A1
Most cited
By later US patents
- Heavy duty forward acting stapling machine76US 5,699,949 A1997
- Compact simplified staple gun mechanism72US 6,145,728 A2000
- Forward acting, forward grip, staple machine65US 5,664,722 A1997
- Stapler safety device to limit motion of striker64US 7,290,692 B22007
- Light duty, forward acting stapling machine60US 5,988,478 A1999