Digital Stream Corporation
4Patents
0Active
4Granted
28Portfolio score
Filing activity: Feb 6, 1992 → Jul 2, 1999
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5510893A | Optical-type position and posture detecting device | Physics | 129 | Expired |
| US5227622A | Wireless input system for computer using pen position detection | Physics | 74 | Expired |
| US5296838A | Wireless input system for computer | Physics | 41 | Expired |
| US6411278B1 | Coordinated position control system, coordinate position control method, and computer-readable storage medium containing a computer program for coordinate position controlling recorded thereon | Physics | 20 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.