B28B 3/021
Ram heads of special form
Official title: {Ram heads of special form}
B28B3/021 (Ram heads of special form) appears on 77 US grants and 70 published applications in this corpus.
Search patents in B28B- Granted patents
- 77
- Published applications
- 70
- Assignees
- 52
- Inventors
- 151
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 3 |
| 2003 | 2 | 1 |
| 2004 | 2 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 4 |
| 2007 | 3 | 4 |
| 2008 | 0 | 1 |
| 2009 | 1 | 9 |
| 2010 | 4 | 2 |
| 2011 | 1 | 1 |
| 2012 | 4 | 3 |
| 2013 | 2 | 2 |
| 2014 | 3 | 1 |
| 2015 | 0 | 6 |
| 2016 | 1 | 1 |
| 2017 | 4 | 3 |
| 2018 | 3 | 4 |
| 2019 | 6 | 3 |
| 2020 | 0 | 3 |
| 2021 | 2 | 4 |
| 2022 | 4 | 3 |
| 2023 | 1 | 4 |
| 2024 | 2 | 3 |
| 2025 | 3 | 1 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System for manufacturing a bevelled stone, particularly for a horological movement23 Jun 2026US 12,663,759 B2Comadur SA
- Sealing member and method for manufacturing same24 Mar 2026US 12,584,557 B2Flowserve Ksm Co., Ltd.
- Method for preparing shell-bionic ceramic tool and shell-bionic ceramic tool12 Aug 2025US 12,384,073 B2Shandong University
- Jewel, in particular for a horological movement, and the manufacturing method thereof1 Jul 2025US 12,342,910 B2Comadur SA
- Method for producing a multi-layer blank with a through-hole18 Mar 2025US 12,251,277 B2DENTSPLY SIRONA Inc.
- Method for inserting ceramic green compacts, method for producing cip green compacts, method for producing sintered ceramic compacts, and method for producing ceramic ball material6 Aug 2026US 2026/0225960 A1Niterra Materials Co., Ltd.
- Method and device for producing a composite body28 May 2026US 2026/0145362 A1
- Method and device for producing a composite body28 May 2026US 2026/0145415 A1
- Ceramic ball material, method for manufacturing ceramic ball using same, and ceramic ball6 Mar 2025US 2025/0074831 A1Kabushiki Kaisha Toshiba
- Method for preparing shell-bionic ceramic tool and shell-bionic ceramic tool11 Jul 2024US 2024/0227235 A9Shandong University
Most cited
By later US patents
- Concrete block forming and facing machine153US 4,063,866 A1977
- Slab-elements for covering the ground54US 4,128,357 A1978
- Mold box apparatus49US 4,218,206 A1980
- Concrete block and method of making same49US 7,208,112 B2Anchor Wall Systems, Inc. · 2007
- Heated stripper shoe assembly47US 5,249,950 ABlock Systems Inc. · 1993