Usar Systems, Inc.
9Patents
0Active
9Granted
26Portfolio score
Filing activity: May 12, 1993 → Jan 16, 2001
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5860099A | Stored program system with protected memory and secure signature extraction | Electricity | 128 | Expired |
| US6511764B1 | Voltaic pile with charge equalizing system | Emerging Cross-Sectional Technologies | 28 | Expired |
| US5585792A | Enegry-saving keyboard | Emerging Cross-Sectional Technologies | 25 | Expired |
| USD356075S | Children's keyboard | General | 14 | Expired |
| US5874938A | Pointing device with reduced component count | Physics | 11 | Expired |
| US6175359A | Pointing device with reduced component count | Physics | 8 | Expired |
| US6429850B2 | Pointing device with reduced component count | Physics | 7 | Expired |
| US6453417B1 | Microcontroller with secure signature extraction | Electricity | 4 | Expired |
| US6239644A | Clock stretcher and level shifter with small component count and low power consumption | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.