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| Number | Title | Issue Date |
| D577727 | Trackball and mounting plate | 09/30/2008 |
| D553578 | Part of a user interface of a drilling machine | 10/23/2007 |
| 6921054 | Ergonomic mouse A computer mouse having a separately movable hand rest. The mouse comprises a housing having a conically shaped depression within a top wall of the housing tapering to an aperture through the top wall. A connecting pin extends through the aperture with an interior e... | 07/26/2005 |
| D494592 | Input device | 08/17/2004 |
| D487573 | Hand electric control device | 03/16/2004 |
| 5581277 | Anti-carpal tunnel device (ACTD) for computer operators A computer mouse assembly for preventing Carpal Tunnel Syndrome includes a computer mouse and a palm support having a curved upper surface. The palm surface has a substantially flat lower surface that is adjustably mounted on the upper surface of the comp... | 12/03/1996 |
| 5528523 | Track ball mechanism A track ball mechanism for an information processing apparatus is assembled integrally with a palm rest member and is attached to an input device of the information processing apparatus.... | 06/18/1996 |
| 5122654 | Ergonomic thumb-actuated trackball combined with control switches An ergonomically designed trackball cursor pointing device in which the cursor movement ball and function switches or buttons are respectively positioned to allow movement of the ball by the thumb while simultaneously operating the switches. More particul... | 06/16/1992 |
| 4952919 | Trackball mechanism A trackball-type input device (10) uses a retainer (114) to secure a ball (80) to a housing (12) so that a large segment (164) of the ball (80) protrudes from the housing (12) for manipulation by the user, thereby affording precise control over rotational... | 08/28/1990 |
