B22D 17/203
Injection pistons
Official title: {Injection pistons (B22D17/2053 takes precedence; for plastics B29C45/53)}
B22D17/203 (Injection pistons) appears on 174 US grants and 192 published applications in this corpus.
Search patents in B22D- Granted patents
- 174
- Published applications
- 192
- Assignees
- 114
- Inventors
- 370
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 4 |
| 2002 | 2 | 3 |
| 2003 | 2 | 2 |
| 2004 | 4 | 3 |
| 2005 | 2 | 4 |
| 2006 | 3 | 3 |
| 2007 | 4 | 3 |
| 2008 | 3 | 3 |
| 2009 | 0 | 4 |
| 2010 | 0 | 1 |
| 2011 | 2 | 1 |
| 2012 | 1 | 7 |
| 2013 | 1 | 5 |
| 2014 | 3 | 14 |
| 2015 | 8 | 27 |
| 2016 | 10 | 16 |
| 2017 | 17 | 25 |
| 2018 | 21 | 10 |
| 2019 | 12 | 5 |
| 2020 | 12 | 11 |
| 2021 | 8 | 13 |
| 2022 | 9 | 10 |
| 2023 | 6 | 4 |
| 2024 | 7 | 4 |
| 2025 | 8 | 5 |
| 2026 | 0 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dual injection system and synchronization control method thereof30 Dec 2025US 12,508,759 B2Ningbo LK Technology Co., Ltd.
- Foundry component having an anticorrosion layer structure23 Dec 2025US 12,502,706 B2Oskar Frech GmbH + Co. KG
- Injection molding machine8 Jul 2025US 12,350,871 B2Fanuc Corporation
- Head and lubricated piston10 Jun 2025US 12,325,064 B2Copromec Die Casting S.r.l. A Socio Unico
- Aluminium alloy for die casting, method for manufacturing same, and die casting method28 Jan 2025US 12,209,296 B2Samsung Electronics Co., Ltd.
- System and method for high-volume production of artillery shell casings using giga-casting6 Aug 2026US 2026/0225154 A1Osirius Group, LLC
- Magnesium-aluminum dual-injection die-casting machine and magnesium-aluminum dual-injection system16 Jul 2026US 2026/0199970 A1Ningbo LK Technology Co., Ltd.
- Monitoring device and monitoring method7 May 2026US 2026/0124675 A1Toyota Jidosha Kabushiki Kaisha
- Counter-piston central injection die casting12 Mar 2026US 2026/0070120 A1Tesla, Inc.
- Integrated system of melting device and liquid injection mechanism and injection method thereof15 Jan 2026US 2026/0014619 A1Amli Materials Technology Co., Ltd.
Most cited
By later US patents
- Self-aligning plunger tip35US 4,842,039 A1989
- Injection piston for die casting29US 4,311,185 AGebrueder Buehler AG · 1982
- Plunger for a diecasting machine24US 5,048,592 AAllper AG · 1991
- Pressing mechanism for casting apparatus23US 4,997,027 AUbe Industries, Ltd. · 1991
- Shot tip for cold chamber die casting machine22US 4,667,729 A1987