B21K 1/185
With cooling channels
Official title: {with cooling channels}
B21K1/185 (With cooling channels) appears on 43 US grants and 50 published applications in this corpus.
Search patents in B21K- Granted patents
- 43
- Published applications
- 50
- Assignees
- 16
- Inventors
- 66
- Latest grant
- 30 May 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 3 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 2 |
| 2010 | 2 | 2 |
| 2011 | 2 | 3 |
| 2012 | 2 | 3 |
| 2013 | 3 | 2 |
| 2014 | 1 | 2 |
| 2015 | 2 | 4 |
| 2016 | 2 | 9 |
| 2017 | 3 | 4 |
| 2018 | 3 | 4 |
| 2019 | 6 | 5 |
| 2020 | 5 | 2 |
| 2021 | 1 | 0 |
| 2022 | 2 | 1 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Forming near-net shape single-piece piston blanks30 May 2023US 11,661,903 B2Ks Kolbenschmidt US, Inc.
- Methods for forging a piston blank29 Mar 2022US 11,286,877 B2Ks Kolbenschmidt US, Inc.
- Production method, piston blank, piston and axial piston machine having said piston4 Jan 2022US 11,213,880 B2Schaeffler Technologies AG & Co. KG
- Cooling channel having dam and funnel6 Jul 2021US 11,053,885 B2KS Kolbenschmidt GmbH
- Hot forming of cooling galleries in steel pistons24 Nov 2020US 10,843,254 B2Ohio State Innovation Foundation
- Near-Net Shape Single-Piece Piston Blanks9 Jun 2022US 2022/0178328 A1Ks Kolbenschmidt US, Inc.
- Production method, piston blank, piston and axial piston machine having said piston5 Nov 2020US 2020/0346278 A1Schaeffler Technologies AG & Co. KG
- Piston cooling gallery shaping to reduce piston temperature16 Apr 2020US 2020/0116102 A1Tenneco Inc.
- Hot forming of cooling galleries in steel pistons14 Nov 2019US 2019/0344330 A1Ohio State Innovation Foundation
- Cooling Channel Having Dam And Funnel24 Oct 2019US 2019/0323450 A1KS Kolbenschmidt GmbH
Most cited
By later US patents
- Method of making a piston bottom27US 4,532,686 ABerchem & Schaberg GmbH · 1985
- Piston assembly and piston member thereof having a predetermined compression height to diameter ratio24US 5,040,454 ACaterpillar Inc. · 1991
- One-piece steel piston19US 7,104,183 B2Karl Schmidt Unisia, Inc. · 2006
- Head for a two piece articulated piston18US 5,317,958 AMetal Leve S.A. Industria e Comercio · 1994
- Method for the production of a piston for an internal combustion engine12US 8,528,206 B2Mahle International GmbH · 2013