Thomas Walker
16Patents
9h-index
26Co-inventors
72Inventor score
Filing activity: Nov 27, 1974 → Sep 29, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USRE35940E | Electromechanical back brace apparatus | General | 98 | Expired |
| US5226874A | Electromechanical back brace apparatus | Human Necessities | 66 | Expired |
| US4869699A | Flying disk with centrifugally activated sound generator | Human Necessities | 23 | Expired |
| US6308554A | Electronic device having an acceleration-sensitive sensor | Physics | 21 | Expired |
| US7919994B2 | Reception comparator for signal modulation upon a supply line | Physics | 18 | Active |
| US5142183A | Electronic switch assembly | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4852669A | Directional downhole drill apparatus | Fixed Constructions | 12 | Expired |
| US7389833B2 | Multi-sectional percussive drill bit assembly | Fixed Constructions | 10 | Active |
| US4682501A | Temperature compensated Bourdon tube gauge | Physics | 9 | Expired |
| US5170087A | Electronic circuit for piezoelectric switch assembly | Electricity | 6 | Expired |
| US4636775A | Sensor for an alarm system | Physics | 5 | Expired |
| US7423568B2 | Sigma delta modulator | Electricity | 5 | Expired |
| US3978421A | Electrical musical instrument amplifier having improved tremolo circuit, improved reverberation control, and power reduction circuit for distortion mode operation | Physics | 4 | Expired |
| US7419017B2 | Multi-sectional percussive drill bit assembly | Fixed Constructions | 3 | Active |
| US7746085B2 | Micromechanical sensor having an analyzer circuit | Physics | 0 | Expired |
| US7669456B2 | Method and device for determining the rest time and/or for drift compensation in a combustion chamber pressure sensor | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.