|
| US3957472 | 10 Jun 1975 | 18 May 1976 | Readi Temp Inc. | Chemical heat transfer unit |
| US3977202 | 28 May 1975 | 31 Aug 1976 | Johnson & Johnson | Cold pack device |
| US3986969 | 6 Feb 1975 | 19 Oct 1976 | The University of Delaware | Thixotropic mixture and method of making same |
| US4003426 | 8 May 1975 | 18 Jan 1977 | The Dow Chemical Company | Heat or thermal energy storage structure |
| US4037650 | 23 May 1975 | 26 Jul 1977 | National Research Development Corporation | Thermal storage apparatus |
| US4081256 | 3 Dec 1976 | 28 Mar 1978 | Readi Temp, Inc. | Endothermic composition and cold pack |
| US4427010 | 15 Oct 1981 | 24 Jan 1984 | | Method and means for cooling injured parts or areas of a human or animal body |
| US5057132 | 8 Jan 1990 | 15 Oct 1991 | Societe Nationale Elf Aquitaine | Device for producing cold and/or heat by a solid-gas reaction |
| US5545197 | 14 Mar 1995 | 13 Aug 1996 | Tecnol Medical Products, Inc. | Reusable heat or cold chemical therapy pack |
| US5641325 | 29 Sep 1994 | 24 Jun 1997 | Tecnol, Inc. | Ice pack |
| US5723002 | 22 Aug 1994 | 3 Mar 1998 | Tecnol, Inc. | Ice pack |
| US5792213 | 15 Nov 1995 | 11 Aug 1998 | Tecnol Medical Products, Inc. | Hot or cold chemical therapy pack |
| US5967308 | 21 Oct 1997 | 19 Oct 1999 | | Multi-compartment bag with breakable walls |
| US6036004 | 3 Dec 1997 | 14 Mar 2000 | | Multi-compartment bag with breakable walls |
| US6074415 | 22 Sep 1998 | 13 Jun 2000 | | Hot or cold applicator with inner element |
| US6083256 | 17 Jul 1998 | 4 Jul 2000 | | NNT or cold pad with inner element |
