Wangtek, Inc.
18Patents
0Active
18Granted
29Portfolio score
Filing activity: Sep 8, 1979 → Jul 19, 1994
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5291348A | High density servo tracking | Physics | 25 | Expired |
| US5438462A | Magnetic storage devices with dynamic boost adjustment to reduce read errors | Physics | 17 | Expired |
| US5483394A | Filtered average servo demodulator | Physics | 17 | Expired |
| US5452153A | Servo controlled magnetic head positioner | Physics | 16 | Expired |
| US5414722A | Selective data synchronizer | Physics | 16 | Expired |
| US5285331A | System for aligning a read head gap over a track of magnetic data | Physics | 16 | Expired |
| US5204792A | Cartridge tape drive | Physics | 15 | Expired |
| US5303095A | System and method of controlling data transfer rate in a magnetic tape drive | Physics | 14 | Expired |
| US5383064A | Automatic closed loop adjustment of analog read signals under microprocessor control | Physics | 11 | Expired |
| US5371639A | Magnetic tape cartridge drive with automatic loading | Physics | 8 | Expired |
| US5331485A | Auto-loading cartridge tape drive | Physics | 8 | Expired |
| US5371642A | Tape drive assembly with an automatic door opening/closing mechanism | Physics | 7 | Expired |
| US5146377A | Adjustable magnetic head mounting system | Physics | 7 | Expired |
| US5208523A | Stepper motor with vernier control mode | Physics | 6 | Expired |
| US5388011A | Peak detector with look ahead | Physics | 5 | Expired |
| US5132858A | Magnetic head positioner | Physics | 5 | Expired |
| US5386326A | Oscillating erase current circuit | Physics | 4 | Expired |
| US5384790A | Magnetic recording system with pulse qualification and error correction circuitry | Electricity | 3 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.