John P. Cairns
11Patents
6h-index
2Co-inventors
56Inventor score
Filing activity: Dec 31, 1984 → Apr 12, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6204735A | Geometrically modulated waves | Electricity | 71 | Expired |
| US4962530A | System for cryptographing and identification | Physics | 38 | Expired |
| US5920238A | Geometrically modulated waves | Electricity | 18 | Expired |
| US5161190A | System for encryption and identification | Physics | 12 | Expired |
| US6189587A | Automated tape splicing system | Performing Operations; Transporting | 9 | Expired |
| US5676792A | Tape splicing device | Performing Operations; Transporting | 7 | Expired |
| US4801935A | Apparatus and method for security of electric and electronic devices | Physics | 6 | Expired |
| US5563556A | Geometrically modulated waves | Electricity | 4 | Expired |
| US5461347A | Apparatus and method for geometrically modulating electromagnetic radiation and a receiver for decoding geometrically modulated signals | Electricity | 1 | Expired |
| US4636590A | Method and apparatus for converting frequency signals representing characters to binary code | Electricity | 1 | Expired |
| US10920506B2 | Methods for wellbore milling operations | Fixed Constructions | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.