E03C 1/30
Devices to facilitate removing of obstructions in waste-pipes or sinks
Official title: Devices to facilitate removing of obstructions in waste-pipes or sinks {(for use in sewer pipes or both in waste and sewer pipes E03F9/00)}
E03C1/30 (Devices to facilitate removing of obstructions in waste-pipes or sinks) appears on 501 US grants and 472 published applications in this corpus.
Search patents in E03C- Granted patents
- 501
- Published applications
- 472
- Assignees
- 140
- Inventors
- 798
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 5 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 2 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 9 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 6 | 0 |
| 1992 | 8 | 0 |
| 1993 | 9 | 0 |
| 1994 | 8 | 0 |
| 1995 | 6 | 0 |
| 1996 | 7 | 0 |
| 1997 | 6 | 0 |
| 1998 | 8 | 0 |
| 1999 | 6 | 0 |
| 2000 | 12 | 0 |
| 2001 | 7 | 4 |
| 2002 | 16 | 3 |
| 2003 | 11 | 11 |
| 2004 | 7 | 12 |
| 2005 | 10 | 14 |
| 2006 | 11 | 10 |
| 2007 | 5 | 8 |
| 2008 | 5 | 9 |
| 2009 | 6 | 13 |
| 2010 | 5 | 12 |
| 2011 | 7 | 9 |
| 2012 | 8 | 8 |
| 2013 | 4 | 12 |
| 2014 | 4 | 16 |
| 2015 | 11 | 22 |
| 2016 | 18 | 29 |
| 2017 | 21 | 27 |
| 2018 | 24 | 45 |
| 2019 | 36 | 33 |
| 2020 | 28 | 34 |
| 2021 | 23 | 33 |
| 2022 | 19 | 22 |
| 2023 | 20 | 21 |
| 2024 | 24 | 32 |
| 2025 | 17 | 20 |
| 2026 | 13 | 13 |
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
- Closet auger29 Sep 2026US 12,746,583 B2Milwaukee Electric Tool Corporation
- System for treating and preventing blockage and/or airlocks in sanitation fixtures15 Sep 2026US 12,735,880 B2
- Multi-cartridge drain guns, accessories therefor, and methods of use and manufacture thereof8 Sep 2026US 12,728,437 B2Diversitech Corporation
- Cleaning tool for a roof drain tube and method of use4 Aug 2026US 12,697,647 B2Snap-on Incorporated
- Drain cleaning device8 Oct 2026US 2026/0307116 A1Milwaukee Electric Tool Corporation
- Drain cleaner with cable counting23 Jul 2026US 2026/0210100 A1Emerson Professional Tools, LLC
- Drain Cleaner Tool9 Jul 2026US 2026/0192341 A1Milwaukee Electric Tool Corporation
- Drain Cleaners and Related Systems and Methods21 May 2026US 2026/0139463 A1Hazar Enterprises LLC
- Vertical pipe dredger7 May 2026US 2026/0125887 A1Foshan Sichangchang Technology Co., Ltd.
Most cited
By later US patents