E03C 1/12
Plumbing installations for waste water
Official title: Plumbing installations for waste water; Basins or fountains connected thereto (drainage devices in floors E03F5/04); Sinks {(wash-basins not connected to the waste-pipe A47K1/04)}
E03C1/12 (Plumbing installations for waste water) appears on 2,984 US grants and 2,997 published applications in this corpus.
Search patents in E03C- Granted patents
- 2,984
- Published applications
- 2,997
- Assignees
- 1,009
- Inventors
- 4,636
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 24 | 0 |
| 1977 | 17 | 0 |
| 1978 | 19 | 0 |
| 1979 | 27 | 0 |
| 1980 | 30 | 0 |
| 1981 | 18 | 0 |
| 1982 | 22 | 0 |
| 1983 | 18 | 0 |
| 1984 | 20 | 0 |
| 1985 | 24 | 0 |
| 1986 | 28 | 0 |
| 1987 | 21 | 0 |
| 1988 | 28 | 0 |
| 1989 | 22 | 0 |
| 1990 | 32 | 0 |
| 1991 | 31 | 0 |
| 1992 | 28 | 0 |
| 1993 | 42 | 0 |
| 1994 | 39 | 0 |
| 1995 | 26 | 0 |
| 1996 | 32 | 0 |
| 1997 | 36 | 0 |
| 1998 | 43 | 0 |
| 1999 | 53 | 0 |
| 2000 | 61 | 0 |
| 2001 | 59 | 14 |
| 2002 | 75 | 48 |
| 2003 | 57 | 65 |
| 2004 | 48 | 87 |
| 2005 | 42 | 72 |
| 2006 | 58 | 83 |
| 2007 | 34 | 101 |
| 2008 | 31 | 96 |
| 2009 | 42 | 100 |
| 2010 | 40 | 111 |
| 2011 | 53 | 71 |
| 2012 | 73 | 99 |
| 2013 | 56 | 83 |
| 2014 | 68 | 114 |
| 2015 | 82 | 133 |
| 2016 | 86 | 152 |
| 2017 | 119 | 165 |
| 2018 | 130 | 179 |
| 2019 | 158 | 162 |
| 2020 | 146 | 184 |
| 2021 | 149 | 212 |
| 2022 | 147 | 162 |
| 2023 | 144 | 139 |
| 2024 | 129 | 159 |
| 2025 | 141 | 133 |
| 2026 | 76 | 73 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- E03C 1/26Object-catching inserts or similar devices for waste pipes or outlets641
- E03C 1/30Devices to facilitate removing of obstructions in waste-pipes or sinks501
- E03C 1/18Sinks, whether or not connected to the waste-pipe500
- E03C 1/22Outlet devices mounted in basins, baths, or sinks499
- E03C 1/32Holders or supports for basins336
- E03C 1/28Odour seals310
- E03C 1/122Pipe-line systems for waste water in building275
- E03C 1/24Overflow devices for basins or baths194
All 14 subgroupsShow fewer
- E03C 1/14Wash-basins connected to the waste-pipe111
- E03C 1/20Connecting baths or bidets to the wastepipe87
- E03C 1/126Installations for disinfecting or deodorising waste-water plumbing installations83
- E03C 2001/1206Pipes with specific features for influencing flow characteristicsIndexing code20
- E03C 2001/1213Constructional features of bidet bowlsIndexing code20
- E03C 1/16Wash-fountains connected to the waste-pipe11
Recent patents
- Sink system with seamless drain and attachment bayonet6 Oct 2026US 12,753,595 B2Kohler Co.
- Drain cleaners6 Oct 2026US 12,753,596 B2
- Closet auger29 Sep 2026US 12,746,583 B2Milwaukee Electric Tool Corporation
- Washing station29 Sep 2026US 12,747,568 B2Qingdao Centaury Design Co., Ltd.
- Tile wall drain29 Sep 2026US 12,747,569 B2
- Drain cleaning device8 Oct 2026US 2026/0307116 A1Milwaukee Electric Tool Corporation
- Food disposal apparatus8 Oct 2026US 2026/0308897 A1LG Electronics Inc.
- Sink lighting system8 Oct 2026US 2026/0309322 A1
- Plumbing fixture and methods of operation24 Sep 2026US 2026/0286670 A1Thomas Dudley Limited
- Garbage catching member holder24 Sep 2026US 2026/0286671 A1Sinkatec Co., Ltd.
Most cited
By later US patents
- Shower drain326US 6,766,545 B22004
- Filtering and collecting device for water drains168US 4,419,232 A1983
- Universal plastic plumbing joint161US 4,620,330 APlastic Oddities, Inc. · 1986
- Drain fitting for pre-formed or pre-assembled showers, etc.155US 4,146,939 A1979
- Branch tail piece110US 4,162,546 ACarrcraft Manufacturing Company · 1979