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| US4622258 | 1 May 1985 | 11 Nov 1986 | Minnesota Mining and Manufacturing Company | Contact lens cleaning article |
| US4627936 | 5 Oct 1984 | 9 Dic 1986 | Gould Paper Corp. | Towel premoistened with antistatic solution for cleaning cathode-ray tubes and the like |
| US4678698 | 30 Jul 1986 | 7 Jul 1987 | Minnesota Mining and Manufacturing Company | Contact lens cleaning article |
| US6767586 | 10 Oct 2002 | 27 Jul 2004 | | Method of application of anti-slip material for surfaces |
