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| US4244369 | 26 Feb 1979 | 13 Ene 1981 | The Kendall Company | Surgical sponge with visually detectable element |
| US4490146 | 1 Mar 1983 | 25 Dic 1984 | The Kendall Company | Laparotomy sponges |
| US4626251 | 22 Feb 1985 | 2 Dic 1986 | | Surgical sponge |
| US4639253 | 25 Nov 1985 | 27 Ene 1987 | Johnson & Johnson Products, Inc. | Nonwoven surgical sponge with X-ray detectable element |
| US4645499 | 24 Sep 1985 | 24 Feb 1987 | The Kendall Company | Surgical sponge |
| US4938901 | 2 Sep 1988 | 3 Jul 1990 | Firma Carl Freudenberg | Process of making a surgical sponge containing an x-ray contrast agent |
| US5041103 | 9 Jun 1986 | 20 Ago 1991 | The Kendall Company | Surgical sponge and method of making |
| US7465847 | 29 Ago 2003 | 16 Dic 2008 | | Radiopaque marker for a surgical sponge |
| USD291732 | 19 Dic 1983 | 1 Sep 1987 | Johnson & Johnson Products Inc. | Surgical laparotomy pad |
| USD291733 | 19 Dic 1983 | 1 Sep 1987 | Johnson & Johnson Products Inc. | Surgical laparotomy pad |
| USD291827 | 19 Dic 1983 | 8 Sep 1987 | Johnson & Johnson Products Inc. | Surgical laparotomy pad |
| USD293375 | 19 Dic 1983 | 22 Dic 1987 | Johnson & Johnson Products Inc. | Surgical laparotomy pad |