|
| US4036311 | 7 Mar 1975 | 19 Jul 1977 | | Rod shaped hand-tool |
| US4571183 | 18 Ago 1983 | 18 Feb 1986 | Syntex (U.S.A.) Inc. | Vibratory endodontic device |
| US5144208 | 26 Feb 1991 | 1 Sep 1992 | Mercedes-Benz AG | Device for adjusting a nominal value of the dimension of an actuator, the longitudinal dimension of which can be changed by applying an external electromagnetic or electrostatic field |
| US5314333 | 9 Oct 1992 | 24 May 1994 | Joachim Irmer | Device for generating oscillations for dental applications |
| US5577911 | 9 Nov 1993 | 26 Nov 1996 | | Ultrasonically driven curette for periodontal curettage |
| US5730594 | 5 Dic 1996 | 24 Mar 1998 | Parkell Products, Inc. | Ultrasonic dental scaler selectively tunable either manually or automatically |
| US6190167 | 23 Mar 1998 | 20 Feb 2001 | Parkell, Inc. | Ultrasonic dental scaler selectively tunable either manually or automatically |
| US6716028 | 27 Jul 2001 | 6 Abr 2004 | Hu-Friedy Mfg. Co., Inc. | Ultrasonic swivel insert |
| US7011520 | 17 Ene 2003 | 14 Mar 2006 | Hu-Friedy Mfg. Co., Inc. | Two part ultrasonic swivel insert, with one part rotatable relative to the other |