John T. Fowler
31Patents
13h-index
17Co-inventors
78Inventor score
Filing activity: Aug 8, 1974 → Jan 23, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4031630A | Calibration apparatus for automatic magnetic compass correction | Physics | 71 | Expired |
| US4711194A | Streamer interface adapter cable mounted leveler | Physics | 62 | Expired |
| US4698912A | Magnetic compass calibration | Physics | 50 | Expired |
| US4912684A | Seismic streamer communication system | Physics | 41 | Expired |
| US4024382A | Loran compensated magnetic compass | Physics | 39 | Expired |
| US4093946A | Two-wire, multiple-transducer communications system | Electricity | 27 | Expired |
| US3979647A | Inductively coupled lock | Emerging Cross-Sectional Technologies | 25 | Expired |
| US5105548A | Apparatus and method for determining azimuth, pitch and roll | Physics | 22 | Expired |
| US4631711A | System for removably housing and aligning components in a towed array | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4843865A | Method of calibrating a compass heading | Physics | 17 | Expired |
| US4047168A | Digital compass and gimbal assembly for two conductor connection | Physics | 17 | Expired |
| US8566969B2 | Adjustable fitting helmet | Human Necessities | 14 | Active |
| US7555398B2 | Sensor system error reduction | Physics | 13 | Active |
| US4038528A | Automatic piloting system | Physics | 12 | Expired |
| US6745280B2 | Content addressable memories having entries stored therein with independently searchable weight fields and methods of operating same | Physics | 10 | Expired |
| US3944813A | Photoelectric control circuit for digital magnetic compass | Electricity | 10 | Expired |
| US3975621A | Digital compass averaging circuit | Physics | 10 | Expired |
| US4671120A | Combined heading and depth sensor | Physics | 9 | Expired |
| US4027398A | Single pivot remote reading compass | Physics | 9 | Expired |
| US5010653A | Apparatus and method for determining azimuth, pitch and roll | Physics | 8 | Expired |
| US5998893A | Integral heat sink and fan rectifier assembly | Electricity | 8 | Expired |
| US4103638A | Automatic piloting system | Physics | 7 | Expired |
| US4725995A | System for removably housing and aligning components in a towed array | Physics | 7 | Expired |
| US4471534A | Remote reading compass with 360 degree roll capability | Physics | 7 | Expired |
| US4004348A | High pressure compass housing | Physics | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.