F02G 2258/80
Materials used: having magnetic properties
Official title: having magnetic properties
F02G2258/80 (Materials used: having magnetic properties) appears on 7 US grants and 2 published applications in this corpus.
Search patents in F02G- Granted patents
- 7
- Published applications
- 2
- Assignees
- 7
- Inventors
- 10
- Latest grant
- 12 Sep 2017
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 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 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Regenerator and regenerative refrigerator with insertion member12 Sep 2017US 9,759,459 B2Sumitomo Heavy Industries, Ltd.
- Apparatus for determining free piston position and an apparatus for controlling free piston position11 Jul 2006US 7,075,292 B2Global Cooling, Inc.
- Magnetic driven hydrodynamic lubrication system for free piston stirling engine26 Dec 1989US 4,888,950 ASunPower Corporation
- Control scheme for power modulation of a free piston Stirling engine17 Oct 1989US 4,873,826 AMechanical Technology Incorporated
- Vibration-reducing apparatus14 Mar 1989US 4,811,563 AMitsubishi Denki Kabushiki Kaisha
Most cited
By later US patents
- Control scheme for power modulation of a free piston Stirling engine22US 4,873,826 AMechanical Technology Incorporated · 1989
- Vibration-reducing apparatus19US 4,811,563 AMitsubishi Denki Kabushiki Kaisha · 1989
- Method and apparatus for snubbing the movement of a free, gas-driven displacer in a cooling engine14US 4,792,346 A1988
- Free piston heat engines8US 4,475,335 ANational Research Development Corporation · 1984
- Apparatus for determining free piston position and an apparatus for controlling free piston position5US 7,075,292 B2Global Cooling, Inc. · 2006