Richard C. Walker
47Patents
25h-index
47Co-inventors
85Inventor score
Filing activity: Nov 20, 1975 → Sep 11, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6647328B2 | Electrically controlled automated devices to control equipment and machinery with remote control and accountability worldwide | Mechanical Engineering; Lighting; Heating | 374 | Expired |
| US6965816B2 | PFN/TRAC system FAA upgrades for accountable remote and robotics control to stop the unauthorized use of aircraft and to improve equipment management and public safety in transportation | Emerging Cross-Sectional Technologies | 314 | Expired |
| US6650638B1 | Decoding method and decoder for 64b/66b coded packetized serial data | Electricity | 193 | Expired |
| US7259357B2 | Electronically controlled sealing, unsealing and/or bonding with metal strip or wire coated with liquefiable substance for redundant application and tamper detection | Mechanical Engineering; Lighting; Heating | 167 | Expired |
| US7249314B2 | Simultaneous multi-user document editing system | Physics | 157 | Expired |
| US6501404B2 | System and method for encoding an input data stream by utilizing a predictive, look-ahead feature | Electricity | 152 | Expired |
| US6157317A | Secure communication and control system for monitoring, recording, reporting and/or restricting unauthorized use of vehicle. | Performing Operations; Transporting | 148 | Expired |
| US6735328B1 | Personal viewing device with system for providing identification information to a connected system | Physics | 103 | Expired |
| US6975617B2 | Network monitoring system with built-in monitoring data gathering | Electricity | 103 | Expired |
| US6249269A | Analog pixel drive circuit for an electro-optical material-based display device | Physics | 63 | Expired |
| US6359662B1 | Method and system for compensating for defects in a multi-light valve display system | Physics | 57 | Expired |
| US6329974A | Electro-optical material-based display device having analog pixel drivers | Physics | 54 | Expired |
| US10235184B2 | Boot loader for active cable assemblies | Electricity | 53 | Active |
| US4884041A | Fully integrated high-speed voltage controlled ring oscillator | Electricity | 53 | Expired |
| US5438621A | DC-free line code and bit and frame synchronization for arbitrary data transmission | Electricity | 50 | Expired |
| US6795064B2 | Electro-optical material-based grey scale generating method | Physics | 49 | Expired |
| US6718491B1 | Coding method and coder for coding packetized serial data with low overhead | Electricity | 45 | Expired |
| US9213445B2 | Optical touch-screen systems and methods using a planar transparent sheet | Physics | 45 | Active |
| US6055286A | Oversampling rotational frequency detector | Electricity | 35 | Expired |
| US5012494A | Method and apparatus for clock recovery and data retiming for random NRZ data | Electricity | 35 | Expired |
| US4001036A | System for improving charge efficiency of a zinc-chloride battery | Electricity | 31 | Expired |
| US5018190A | Device to block unauthorized modem access over a PBX line | Electricity | 30 | Expired |
| US8403571B2 | Apparatuses, systems, and methods for facilitating optical communication between electronic devices | Physics | 30 | Active |
| US5678222A | Modulation and frequency conversion by time sharing | Electricity | 26 | Expired |
| US5841325A | Fully-integrated high-speed interleaved voltage-controlled ring oscillator | Electricity | 25 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.