Roger E. Billings
22Patents
12h-index
10Co-inventors
78Inventor score
Filing activity: Mar 3, 1975 → Apr 16, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4714989A | Funtionally structured distributed data processing system | Physics | 71 | Expired |
| US5761433A | System for communicating data in a network using both a daisy chain link and separate broadcast links | Electricity | 61 | Expired |
| US6115747A | Computer network interface that merges remote data received from other computers with local data before transmitting the merged data to a network | Electricity | 33 | Expired |
| US3983882A | Method and apparatus for hydrogen fueled internal combustion engines | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4253428A | Hydrogen fuel systems | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4016836A | Hydride fuel system | Emerging Cross-Sectional Technologies | 27 | Expired |
| US6076117A | Packet merging hub system for sequentially merging received data in a network hub into data packets before broadcasting to a plurality of destination computers | Electricity | 21 | Expired |
| US4720331A | Method and apparatus for electrolyzing water | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5684956A | Data transmission system with parallel packet delivery | Physics | 17 | Expired |
| US4108605A | Hydrogen purification and storage system | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5737422A | Distributed data processing network | Electricity | 15 | Expired |
| US5793981A | System for communicating data in a network using both a daisy chain link and separate broadcast links | Electricity | 12 | Expired |
| US4715938A | Method and apparatus for electrolyzing water | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4062330A | Rotary engine intake and exhaust system | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US6061730A | Methods and apparatus for communicating data in computer networks with separate packet assembly and packet broadcast channels | Electricity | 8 | Expired |
| US4173625A | Hydrogen purification and storage system | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4040398A | Four-cycle rotary engine and method of operation therefor | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US10289826B2 | Using hidden secrets and token devices to control access to secure systems | Physics | 2 | Active |
| US10979226B1 | Soft-token authentication system with token blocking after entering the wrong PIN | Electricity | 1 | Active |
| US8656179B2 | Using hidden secrets and token devices to create secure volumes | Physics | 1 | Active |
| US9363257B2 | Secure federated identity service | Electricity | 0 | Active |
| US10263782B2 | Soft-token authentication system | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.