B21D 51/18
Vessels
Official title: vessels, e.g. tubs, vats, tanks, sinks, or the like
B21D51/18 (Vessels) appears on 139 US grants and 154 published applications in this corpus.
Search patents in B21D- Granted patents
- 139
- Published applications
- 154
- Assignees
- 137
- Inventors
- 322
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 2 |
| 2002 | 1 | 3 |
| 2003 | 2 | 3 |
| 2004 | 7 | 6 |
| 2005 | 1 | 2 |
| 2006 | 3 | 4 |
| 2007 | 1 | 3 |
| 2008 | 1 | 2 |
| 2009 | 1 | 1 |
| 2010 | 1 | 7 |
| 2011 | 2 | 3 |
| 2012 | 2 | 5 |
| 2013 | 1 | 4 |
| 2014 | 1 | 21 |
| 2015 | 3 | 7 |
| 2016 | 11 | 9 |
| 2017 | 14 | 13 |
| 2018 | 8 | 6 |
| 2019 | 4 | 5 |
| 2020 | 5 | 5 |
| 2021 | 4 | 6 |
| 2022 | 2 | 6 |
| 2023 | 5 | 7 |
| 2024 | 5 | 11 |
| 2025 | 5 | 7 |
| 2026 | 1 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Liquid tank, rocket, and method of manufacturing liquid tank5 May 2026US 12,618,523 B2IHI Corporation
- Nonstick pan and manufacturing method thereof23 Dec 2025US 12,502,024 B2Sichuan Jiuchuang Technology Co., Ltd.
- Method of manufacturing bottomed container, and press system14 Oct 2025US 12,440,885 B2Fuji Springs Co., Inc.
- Induction heatable coated metal cooking surface22 Jul 2025US 12,364,360 B2Seb S. A.
- Physical non-stick pan with convex-concave structure, and manufacturing method thereof20 May 2025US 12,303,057 B2Zhejiang Bahe Kitchenware Co., Ltd.
- Method for manufacturing non-stick pan liner20 Aug 2026US 2026/0241438 A1Joyoung Company Limited
- Automated sphere plate pressing method16 Jul 2026US 2026/0199948 A1CB&I STS Delaware LLC
- Coating-free non-stick pans and preparation methods thereof28 May 2026US 2026/0144402 A1Zhejiang Jiukang Electric Appliances Co., Ltd.
- Manufacturing method of water tank12 Feb 2026US 2026/0042136 A1LG Electronics Inc.
- Method for manufacturing housing by press working, apparatus therefor and housing thereof22 Jan 2026US 2026/0021525 A1Denso Corporation
Most cited
By later US patents
- Apparatus for dieless forming plate materials102US 6,216,508 B1Amino Corporation · 2001
- Baking pan and method of forming same49US 4,195,747 AAmerican Home Products Corporation · 1980
- Method of making a tank33US 4,131,980 A1979
- Method for forming a seamless stainless steel sink bowl with a grid ledge and product23US 5,644,943 AFranke Inc. · 1997
- Method for detachably sealing together the sections of a barrel container assembly22US 4,040,372 A1977