E03D 9/14
Noise-reducing means combined with flushing valves
Official title: Noise-reducing means combined with flushing valves (noise-absorbing means in pipe systems F16L55/00 {; if not in combination with flushing valves E03D11/00; noise-reducing means in valves in general F16K47/00})
E03D9/14 (Noise-reducing means combined with flushing valves) appears on 19 US grants and 19 published applications in this corpus.
Search patents in E03D- Granted patents
- 19
- Published applications
- 19
- Assignees
- 17
- Inventors
- 55
- Latest grant
- 23 Jan 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 3 |
| 2004 | 2 | 0 |
| 2005 | 1 | 2 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 1 | 0 |
| 2009 | 1 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 2 |
| 2019 | 0 | 0 |
| 2020 | 3 | 0 |
| 2021 | 0 | 1 |
| 2022 | 2 | 2 |
| 2023 | 0 | 2 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Portable water noise maker device23 Jan 2024US 11,879,245 B2
- Flush toilet1 Nov 2022US 11,486,123 B2Toto Ltd.
- Vacuum-assisted toilet systems and methods of using the same9 Aug 2022US 11,408,161 B2Brigham Young University
- Flush toilet11 Aug 2020US 10,738,452 B2Toto Ltd.
- Flush toilet7 Jul 2020US 10,704,243 B2Toto Ltd.
- Toilet body and toilet10 Apr 2025US 2025/0116100 A1Quanzhou Komoo Intelligent Kitchen & Bath Co., Ltd
- Noise reduction structure for toilet tank5 Oct 2023US 2023/0313516 A1Eco (Xiamen) Technology Inc.
- Flush Valve Apparatus3 Aug 2023US 2023/0243137 A1AS America, Inc.
- Flush toilet3 Mar 2022US 2022/0064923 A1Toto Ltd.
- Portable Water Noise Maker Device20 Jan 2022US 2022/0018107 A1
Most cited
By later US patents
- WC-cistern filling valve24US 5,738,141 ARost, Incorporated · 1998
- Water standpipe for toilet sump tanks13US 4,134,164 A1979
- Fill valve assembly for a flush tank6US 6,755,209 B2Geberit Technik AG · 2004
- Silencer5US 4,635,751 A1987
- Multiple rinse injections to reduce sound in vacuum toilets3US 10,683,652 B1MAG Aerospace Industries, LLC · 2020