Telautograph Corporation
9Patents
0Active
9Granted
26Portfolio score
Filing activity: Apr 1, 1974 → Jul 16, 1985
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4638298A | Communication system having message repeating terminals | Electricity | 135 | Expired |
| US3937455A | Automatic stack feed | Performing Operations; Transporting | 28 | Expired |
| US4158747A | Electrostatic tablet writing stylus | Physics | 21 | Expired |
| US4034155A | Electrical sensing writing pen | Physics | 19 | Expired |
| USD244036S | Memo transmitter | General | 8 | Expired |
| USD247821S | Color comparator for testing swimming pools | General | 6 | Expired |
| US4027311A | Thermal writing power | Physics | 6 | Expired |
| US4325071A | Thermal recording stylus | Physics | 2 | Expired |
| US4039747A | Apparatus for converting the position of a manually operated instrument into an electrical signal | Physics | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.