E03C 1/2306
The plug being operated by hand contact
Official title: {the plug being operated by hand contact}
E03C1/2306 (The plug being operated by hand contact) appears on 90 US grants and 101 published applications in this corpus.
Search patents in E03C- Granted patents
- 90
- Published applications
- 101
- Assignees
- 46
- Inventors
- 153
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 2 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 7 |
| 2013 | 1 | 6 |
| 2014 | 2 | 4 |
| 2015 | 7 | 4 |
| 2016 | 1 | 1 |
| 2017 | 4 | 9 |
| 2018 | 3 | 7 |
| 2019 | 8 | 7 |
| 2020 | 8 | 7 |
| 2021 | 9 | 7 |
| 2022 | 4 | 5 |
| 2023 | 6 | 8 |
| 2024 | 7 | 6 |
| 2025 | 6 | 8 |
| 2026 | 2 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device for closing and opening by manual pressure a drain of a sanitary fixture2 Jun 2026US 12,644,263 B2
- Drain valve for bathroom3 Feb 2026US 12,540,464 B2Guangzhou Rising Dragon Recreation Industrial Co., Ltd.
- Gasket seals for drain closures16 Dec 2025US 12,497,768 B2Danco, Inc.
- Accessible subfloor bath23 Sep 2025US 12,421,704 B2
- Clicker drain assembly and method of assembling same15 Jul 2025US 12,359,412 B2Kohler Co.
- Stopper for a sink drain17 Sep 2026US 2026/0275693 A1
- Dual-function pin for push-pull and lift-turn stoppers9 Jul 2026US 2026/0193873 A1WCM Industries, Inc.
- Illuminated pop-up drain18 Jun 2026US 2026/0168223 A1Delta Faucet Company
- Stopper scrubber for sink7 May 2026US 2026/0123794 A1
- Closure element for a drain opening of a sanitary basin7 May 2026US 2026/0125885 A1BLANCO GmbH + Co KG
Most cited
By later US patents
- Hydrostatic drain plug38US 5,819,328 A1998
- Plug for a sink drain38US 6,490,739 B1Princeton International Company · 2002
- Vandal resistant push-pull drain stopper35US 4,908,883 APrice Pfister, Inc. · 1990
- Drain valve assembly31US 5,363,519 AKohler Co. · 1994
- Drain structure for a sink29US 6,219,861 B12001