John L. Smith
6Patents
6h-index
7Co-inventors
45Inventor score
Filing activity: Feb 24, 1975 → Dec 5, 1977
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3962539A | Product block cipher system for data security | Electricity | 283 | Expired |
| US3958081A | Block cipher system for data security | Electricity | 232 | Expired |
| US4238854A | Cryptographic file security for single domain networks | Electricity | 214 | Expired |
| US4238853A | Cryptographic communication security for single domain networks | Electricity | 181 | Expired |
| US4386234A | Cryptographic communication and file security using terminals | Emerging Cross-Sectional Technologies | 54 | Expired |
| US4074066A | Message verification and transmission error detection by block chaining | Electricity | 49 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.