|
| US4121929 | 11 Feb 1977 | 24 Oct 1978 | Kobe Steel, Ltd. | Nitrogen containing high speed steel obtained by powder metallurgical process |
| US4140527 | 23 May 1977 | 20 Feb 1979 | Kobe Steel, Ltd. | Nitrogen containing powder metallurgical tool steel |
| US4627959 | 18 Jun 1985 | 9 Dec 1986 | Inco Alloys International, Inc. | Production of mechanically alloyed powder |
| US5041261 | 21 Dec 1990 | 20 Aug 1991 | GTE Laboratories Incorporated | Method for manufacturing ceramic-metal articles |
| US5053074 | 20 Dec 1990 | 1 Oct 1991 | GTE Laboratories Incorporated | Ceramic-metal articles |
| US5089047 | 20 Dec 1990 | 18 Feb 1992 | GTE Laboratories Incorporated | Ceramic-metal articles and methods of manufacture |
| US5865385 | 21 Feb 1997 | 2 Feb 1999 | | Comminuting media comprising martensitic/austenitic steel containing retained work-transformable austenite |
| US6080247 | 9 Oct 1998 | 27 Jun 2000 | GS Technologies Operating Company | Comminuting media comprising martensitic/austenitic steel containing retained work-transformable austenite |
| US6238455 | 22 Oct 1999 | 29 May 2001 | CRS Holdings, Inc. | High-strength, titanium-bearing, powder metallurgy stainless steel article with enhanced machinability |
| US7273584 | 30 Aug 2004 | 25 Sep 2007 | Japan Nuclear Cycle Development Institute | Method of manufacturing oxide dispersion strengthened martensitic steel excellent in high-temperature strength having residual α-grains |
| US7390456 | 10 Sep 2002 | 24 Jun 2008 | Plansee Aktiengesellschaft | Powder-metallurgic method for producing highly dense shaped parts |
