Gerald E. Johnson
34Patents
10h-index
18Co-inventors
68Inventor score
Filing activity: Jan 14, 1983 → Apr 23, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5406125A | Semiconductor device having a metalized via hole | Electricity | 49 | Expired |
| US4946020A | Low friction escalator handrail guide | Performing Operations; Transporting | 17 | Expired |
| US5215177A | Escalator skirt and deck panel quick release fastener assembly | Performing Operations; Transporting | 15 | Expired |
| US4982829A | Flexible escalator handrail | Performing Operations; Transporting | 12 | Expired |
| US5366060A | Balustrade handrail entry housing | Performing Operations; Transporting | 12 | Expired |
| US5295567A | System for emergency stopping of escalator handrail | Performing Operations; Transporting | 12 | Expired |
| US5156252A | Handrail guard housing shield | Performing Operations; Transporting | 10 | Expired |
| US5316121A | Escalator missing step detection | Performing Operations; Transporting | 10 | Expired |
| US5156251A | Balustrade mounting assembly for escalator or moving walkway | Performing Operations; Transporting | 10 | Expired |
| US4895239A | Curved escalator with fixed center constant radius path of travel | Performing Operations; Transporting | 10 | Expired |
| US4953685A | Step chain for curved escalator | Performing Operations; Transporting | 10 | Expired |
| US5245315A | Fiber optic escalator handrail intrusion detector shield | Performing Operations; Transporting | 10 | Expired |
| US5186302A | Escalator skirt and deck panel installation | Performing Operations; Transporting | 8 | Expired |
| US5188209A | Handrail roller bow adjustment | Performing Operations; Transporting | 8 | Expired |
| US5226522A | Moving handrail guide mount with vibration isolation | Performing Operations; Transporting | 7 | Expired |
| US4901839A | Self adjustable escalator handrail drive | Performing Operations; Transporting | 7 | Expired |
| US5284237A | Sound insulation for escalator balustrade | Performing Operations; Transporting | 6 | Expired |
| US4998613A | Self adjustable escalator handrail drive | Performing Operations; Transporting | 6 | Expired |
| US5018616A | Balanced self adjustable escalator handrail drive | Performing Operations; Transporting | 5 | Expired |
| US5332078A | Balustrade handrail entry guard | Performing Operations; Transporting | 4 | Expired |
| US5131521A | Moving handrail drive | Performing Operations; Transporting | 4 | Expired |
| USD348757S | Escalator handrail entry housing | General | 3 | Expired |
| US5131520A | Escalator handrail guide | Performing Operations; Transporting | 3 | Expired |
| USD338309S | Barrier panel for escalators | General | 3 | Expired |
| US5133443A | Self adjustable escalator handrail drive with balanced drive chain tension | Performing Operations; Transporting | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.