David Cranfill
14Patents
8h-index
24Co-inventors
68Inventor score
Filing activity: Sep 4, 2001 → Jul 30, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7784366B2 | Single sided capacitive force sensor for electronic devices | Physics | 73 | Active |
| US7667371B2 | Electronic device and circuit for providing tactile feedback | Electricity | 56 | Active |
| US8265308B2 | Apparatus including two housings and a piezoelectric transducer | Physics | 39 | Active |
| US7242784B2 | Dynamic gain control of audio in a communication device | Electricity | 33 | Expired |
| US8766954B2 | Active stylus for use with touch-sensitive interfaces and corresponding method | Physics | 30 | Active |
| US7421088B2 | Multifunction transducer | Electricity | 22 | Expired |
| US7054450B2 | Method and system for ensuring audio safety | Electricity | 21 | Expired |
| US7129824B2 | Tactile transducers and method of operating | Electricity | 9 | Expired |
| US7683918B2 | User interface and method therefor | Physics | 8 | Active |
| US7483543B2 | Stereo imaging manifold and method for use in a portable electronic device | Electricity | 6 | Expired |
| US9430078B2 | Printed force sensor within a touch screen | Physics | 2 | Active |
| US8008561B2 | Audio file format with mapped lighting effects and method for controlling lighting effects using an audio file format | Physics | 2 | Active |
| US8810519B2 | Touch sensor integrated with a keyboard spacebar | Physics | 2 | Active |
| US8841847B2 | Electronic device for controlling lighting effects using an audio file | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.