E03F 9/002
Cleaning sewer pipes by mechanical means
Official title: {Cleaning sewer pipes by mechanical means}
E03F9/002 (Cleaning sewer pipes by mechanical means) appears on 289 US grants and 210 published applications in this corpus.
Search patents in E03F- Granted patents
- 289
- Published applications
- 210
- Assignees
- 80
- Inventors
- 365
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 5 | 0 |
| 1982 | 10 | 0 |
| 1983 | 6 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 6 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 9 | 0 |
| 1992 | 3 | 0 |
| 1993 | 8 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 9 | 0 |
| 2000 | 6 | 0 |
| 2001 | 3 | 0 |
| 2002 | 4 | 1 |
| 2003 | 5 | 0 |
| 2004 | 1 | 3 |
| 2005 | 1 | 4 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 8 |
| 2009 | 3 | 2 |
| 2010 | 4 | 4 |
| 2011 | 3 | 3 |
| 2012 | 1 | 2 |
| 2013 | 5 | 3 |
| 2014 | 3 | 8 |
| 2015 | 7 | 5 |
| 2016 | 6 | 18 |
| 2017 | 8 | 12 |
| 2018 | 9 | 24 |
| 2019 | 16 | 15 |
| 2020 | 22 | 25 |
| 2021 | 14 | 23 |
| 2022 | 13 | 14 |
| 2023 | 16 | 9 |
| 2024 | 15 | 12 |
| 2025 | 14 | 8 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Drain cleaners6 Oct 2026US 12,753,596 B2
- Drain cleaning device14 Jul 2026US 12,678,837 B2Milwaukee Electric Tool Corporation
- Drain cleaner tool14 Apr 2026US 12,599,940 B2Milwaukee Electric Tool Corporation
- Torque limiter for powered drain cleaner16 Dec 2025US 12,496,624 B2Ridge Tool Company
- Power tool adapter for a drain cleaning device25 Nov 2025US 12,480,297 B2
- Drain cleaning device8 Oct 2026US 2026/0307116 A1Milwaukee Electric Tool Corporation
- Gripper, gripping system, and use of a gripper24 Sep 2026US 2026/0286676 A1BODUS GmbH
- Electric pipeline dredging machine using centrifugal sewage discharge technology23 Jul 2026US 2026/0210104 A1Zhejiang Jinhua Runchn Tools Co., Ltd
- Drain Cleaner Tool9 Jul 2026US 2026/0192341 A1Milwaukee Electric Tool Corporation
- Drain cleaners19 Feb 2026US 2026/0049466 A1
Most cited
By later US patents
- Drain cleaning machine66US 5,031,276 AEmerson Electric Co. · 1991
- Drain pipe cleaning tool64US 4,617,693 A1986
- Drum type sewer cleaner63US 4,364,139 AEmerson Electric Co. · 1982
- Cable coupler63US 4,887,929 AElectric Eel Manufacturing Co., Inc. · 1989
- Portable drain cleaning apparatus60US 4,956,889 AEmerson Electric Co. · 1990