David Keith Johnson
21Patents
9h-index
32Co-inventors
75Inventor score
Filing activity: Mar 13, 1989 → Apr 5, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7541920B2 | Alarm/event encryption in an industrial environment | Emerging Cross-Sectional Technologies | 46 | Active |
| US8427649B2 | Range imaging lidar | Emerging Cross-Sectional Technologies | 41 | Active |
| US8797550B2 | Atmospheric measurement system | Emerging Cross-Sectional Technologies | 37 | Active |
| US5148433A | Transfer network interface | Emerging Cross-Sectional Technologies | 35 | Expired |
| US9086488B2 | Atmospheric measurement system and method | Emerging Cross-Sectional Technologies | 30 | Active |
| US8866322B2 | Atmospheric measurement system | Emerging Cross-Sectional Technologies | 25 | Active |
| US7612661B1 | Dynamic messages | Emerging Cross-Sectional Technologies | 18 | Active |
| US5805859A | Digital simulator circuit modifier, network, and method | Physics | 17 | Expired |
| US7675406B2 | Generation of timestamps within field devices | Emerging Cross-Sectional Technologies | 15 | Active |
| US10969232B1 | Alignment of standard-definition and High-Definition maps | Physics | 8 | Active |
| US7551072B2 | Run-time configuration of alarms and events | Emerging Cross-Sectional Technologies | 4 | Active |
| US8675658B2 | Using multiple IGMP queriers in a layer 2 network | Electricity | 2 | Active |
| US7538664B2 | Customized industrial alarms | Emerging Cross-Sectional Technologies | 2 | Active |
| US9977045B2 | Atmospheric measurement system | Emerging Cross-Sectional Technologies | 1 | Active |
| US10878355B2 | Systems and methods for incident queue assignment and prioritization | Physics | 1 | Active |
| US11768076B2 | Alignment of standard-definition and high-defintion maps | Physics | 1 | Active |
| US7902965B2 | Subscribing to alarms and events in a hierarchy | Emerging Cross-Sectional Technologies | 0 | Active |
| US8164435B2 | Subscribing to alarms and events in a hierarchy | Emerging Cross-Sectional Technologies | 0 | Active |
| US9755845B2 | Protocol independent multicast (PIM) snooping for a shortest path bridging multicast (SPBM) network | Electricity | 0 | Active |
| US10346779B2 | Systems and methods for incident queue assignment and prioritization | Physics | 0 | Active |
| US10591312B2 | Whispering gallery mode based range-resolved air data system | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.