Robert J. Walker
38Patents
10h-index
22Co-inventors
75Inventor score
Filing activity: Aug 30, 1976 → Jan 22, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6173094A | Optical-transmission system having a split-gain amplifier and a signal-modifying device | Electricity | 44 | Expired |
| US5659641A | Optical circuit on printed circuit board | Electricity | 26 | Expired |
| USRE38310E1 | Optical circuit on printed circuit board | General | 16 | Expired |
| US4292714A | Easy opening and secure closing closure | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6213318A | Rotatable connection system for crane boom sections | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5406767A | Longitudinally divisible crane boom segment | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5842587A | Offsetting link assembly for folding luffing jib | Performing Operations; Transporting | 12 | Expired |
| US7954657B2 | Connection system for crane boom segments | Emerging Cross-Sectional Technologies | 12 | Active |
| US5487479A | Method for nesting longitudinally divisible crane boom segments | Performing Operations; Transporting | 11 | Expired |
| US5960970A | Multiple position wire rope guide | Performing Operations; Transporting | 11 | Expired |
| US8534474B2 | Connection system for crane boom segments | Emerging Cross-Sectional Technologies | 10 | Active |
| US9674118B2 | System and method for low-latency network data switching | Electricity | 10 | Active |
| US8739988B2 | Pinned connection system for crane column segments | Emerging Cross-Sectional Technologies | 10 | Active |
| US9051159B2 | Column connector system | Emerging Cross-Sectional Technologies | 10 | Active |
| US8839966B2 | Folding jib main strut and transportable reeved strut caps | Performing Operations; Transporting | 5 | Active |
| US8127949B2 | Crane backstay spreader | Emerging Cross-Sectional Technologies | 3 | Active |
| US8622228B2 | Boom hoist transportation system and crane using same | Performing Operations; Transporting | 3 | Active |
| US9521219B2 | Systems, methods, and apparatuses using common addressing | Electricity | 2 | Active |
| US10354562B2 | Identification tag covering device | Human Necessities | 2 | Active |
| USD367746S | Hand held bagger | General | 2 | Expired |
| US10484268B2 | System and method for low-latency network data switching | Electricity | 2 | Active |
| US9853879B2 | Systems and methods for identifying interconnections among physical-layer cross-connect switches | Electricity | 2 | Active |
| US10789054B2 | Methods, systems, apparatuses and devices for facilitating change impact analysis (CIA) using modular program dependency graphs | Physics | 1 | Active |
| US9187296B2 | Connection system for crane column segments | Emerging Cross-Sectional Technologies | 1 | Active |
| US10929405B2 | Systems and methods for distributed architecture of market-data processing device | Electricity | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.