|
| US3986551 | 20 May 1975 | 19 Oct 1976 | E. I. Du Pont de Nemours and Company | Heat exchanger |
| US4031745 | 20 Feb 1976 | 28 Jun 1977 | General Electric Company | Method of forming constriction in tubing |
| US4175416 | 11 Jan 1978 | 27 Nov 1979 | Hitachi, Ltd. | Apparatus for manufacturing heat transfer tubes |
| US4330913 | 20 Oct 1980 | 25 May 1982 | | Method of making heat exchangers |
| US4332069 | 10 Nov 1980 | 1 Jun 1982 | | Making heat exchangers |
| US4476704 | 2 Mar 1983 | 16 Oct 1984 | Wieland-Werke AG | Method for producing finned tubes |
| US4735071 | 9 Apr 1987 | 5 Apr 1988 | Hamana Iron Works Co., Ltd.
Showa Aluminum Corporation | Apparatus for continuously producing tube having helical grooves in its inner surface |
| US5036909 | 28 Aug 1990 | 6 Aug 1991 | General Motors Corporation | Multiple serpentine tube heat exchanger |
| US5511613 | 12 Dec 1994 | 30 Apr 1996 | Hudson Products Corporation | Elongated heat exchanger tubes having internal stiffening structure |
| US5586598 | 21 Dec 1994 | 24 Dec 1996 | Sanden Corporation | Heat exchanger |
| US5771964 | 19 Apr 1996 | 30 Jun 1998 | Heatcraft Inc. | Heat exchanger with relatively flat fluid conduits |
| US5797184 | 31 May 1995 | 25 Aug 1998 | Sanden Corporation | Method of making a heat exchanger |
| US5826646 | 2 Jul 1997 | 27 Oct 1998 | Heatcraft Inc. | Flat-tubed heat exchanger |
| US6016864 | 10 Jun 1998 | 25 Jan 2000 | Heatcraft Inc. | Heat exchanger with relatively flat fluid conduits |
| US6644358 | 27 Jul 2001 | 11 Nov 2003 | Manoir Industries, Inc. | Centrifugally-cast tube and related method and apparatus for making same |
| US6675746 | 16 May 2001 | 13 Jan 2004 | Advanced Mechanical Technology, Inc. | Heat exchanger with internal pin elements |
| US6819561 | 2 Oct 2002 | 16 Nov 2004 | SatCon Technology Corporation | Finned-tube heat exchangers and cold plates, self-cooling electronic component systems using same, and methods for cooling electronic components using same |
| US6834523 | 26 Dec 2002 | 28 Dec 2004 | Kabushiki Kaisha Kobe Seiko Sho | Method for producing seamless tube with grooved inner surface |
| US7284325 | 20 Mar 2007 | 23 Oct 2007 | | Retractable finning tool and method of using |
| US7311137 | 25 Oct 2004 | 25 Dec 2007 | Wolverine Tube, Inc. | Heat transfer tube including enhanced heat transfer surfaces |
| US7509828 | 24 Mar 2006 | 31 Mar 2009 | Wolverine Tube, Inc. | Tool for making enhanced heat transfer surfaces |
| US7637012 | 13 Feb 2007 | 29 Dec 2009 | Wolverine Tube, Inc. | Method of forming protrusions on the inner surface of a tube |
| US8033767 | 7 May 2010 | 11 Oct 2011 | Manoir Industries, Inc. | Centrifugally-cast tube and related method and apparatus for making same |
| US8070401 | 7 May 2010 | 6 Dec 2011 | Manoir Industries, Inc. | Apparatus for making centrifugally-cast tube |
| US8162040 | 10 Mar 2006 | 24 Apr 2012 | Spinworks, LLC | Heat exchanging insert and method for fabricating same |
