E03C 1/122
Pipe-line systems for waste water in building
Official title: Pipe-line systems for waste water in building (pipe-line systems in general F17D)
E03C1/122 (Pipe-line systems for waste water in building) appears on 275 US grants and 246 published applications in this corpus.
Search patents in E03C- Granted patents
- 275
- Published applications
- 246
- Assignees
- 117
- Inventors
- 428
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 11 | 0 |
| 1994 | 8 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 0 |
| 2002 | 5 | 1 |
| 2003 | 2 | 6 |
| 2004 | 6 | 6 |
| 2005 | 3 | 8 |
| 2006 | 8 | 8 |
| 2007 | 2 | 8 |
| 2008 | 5 | 6 |
| 2009 | 2 | 11 |
| 2010 | 4 | 8 |
| 2011 | 6 | 7 |
| 2012 | 7 | 7 |
| 2013 | 5 | 13 |
| 2014 | 4 | 5 |
| 2015 | 6 | 11 |
| 2016 | 4 | 8 |
| 2017 | 7 | 13 |
| 2018 | 10 | 19 |
| 2019 | 14 | 10 |
| 2020 | 8 | 17 |
| 2021 | 16 | 18 |
| 2022 | 17 | 17 |
| 2023 | 16 | 16 |
| 2024 | 10 | 9 |
| 2025 | 20 | 6 |
| 2026 | 4 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Plumbing vent plug11 Aug 2026US 12,704,256 B2
- Prefabricated wall frame assembly system and method9 Jun 2026US 12,650,014 B1
- Water stopping mechanism configured for water outlet device and water outlet device10 Feb 2026US 12,544,774 B2Xiamen Lota International Co., Ltd.
- Method for water saving by retrofitting an institutional plumbing fixture and plumbing fixture made by such method3 Feb 2026US 12,540,459 B1
- Drain pipe connector system9 Dec 2025US 12,492,539 B2Physiclean Ltd.
- Plumbing alarm system9 Jul 2026US 2026/0194386 A1
- Air admittance valve assembly21 May 2026US 2026/0139750 A1
- Pipe Fitting with Fusible Sleeve14 May 2026US 2026/0132871 A1Ipex Technologies Inc.
- Modular support system for plumbing connections7 May 2026US 2026/0126135 A1
- Dual air admittance valve26 Mar 2026US 2026/0085507 A1
Most cited
By later US patents