Span & Company LLC
8Patents
0Active
8Granted
33Portfolio score
Filing activity: Oct 29, 1986 → Nov 18, 2003
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5563496A | Battery monitoring and charging control unit | Electricity | 258 | Expired |
| US5349282A | Battery charging and monitoring system | Electricity | 105 | Expired |
| US7130190B1 | Computer servicing cart | Performing Operations; Transporting | 81 | Expired |
| US4746854A | Battery charging system with microprocessor control of voltage and current monitoring and control operations | Emerging Cross-Sectional Technologies | 73 | Expired |
| US4918368A | System for charging batteries and measuring capacities and efficiencies thereof | Emerging Cross-Sectional Technologies | 61 | Expired |
| US5198743A | Battery charger with microprocessor control | Electricity | 45 | Expired |
| US4935906A | Scanning sonar system | Physics | 36 | Expired |
| US6373676B1 | Magnetic floatation control system | Electricity | 11 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.