Robert C. Nelson
24Patents
9h-index
16Co-inventors
72Inventor score
Filing activity: Aug 14, 1975 → Mar 5, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4031997A | Mobile telescopical articulated cascade conveyor system for mining and automatic self-tramming wheel-mounted conveyor unit therefor | Performing Operations; Transporting | 33 | Expired |
| US4229780A | Fluorescent lamp for use in explosive atmospheres such as mines | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| US7757765B2 | Downhole preparation and use of thixotropic cement slurries | Emerging Cross-Sectional Technologies | 25 | Active |
| US5272609A | Portable lighting unit | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US4418872A | Feeder/crusher machine | Fixed Constructions | 15 | Expired |
| US4121694A | Labyrinth lubricant seal for belt conveyor roll | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US4779167A | Headlight for mine vehicle | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US4160619A | Horizontally articulated shuttle car | Fixed Constructions | 10 | Expired |
| USD362027S | Board game | General | 10 | Expired |
| US4048179A | Process for preparing water-dilutable, heat-curing coating compositions | Chemistry; Metallurgy | 9 | Expired |
| US4115328A | Process for making stable solvent-free, aqueous epoxy resin dispersions | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5617005A | Method and apparatus for charging lead acid batteries | Electricity | 7 | Expired |
| US4307982A | Mobile mine roof support system | Fixed Constructions | 7 | Expired |
| US9815557B2 | Aircraft humidifier | Performing Operations; Transporting | 6 | Active |
| US10426201B2 | Garment waistband | Textiles; Paper | 6 | Active |
| US4085682A | Vehicle shock absorbing articulated jointed suspension | Performing Operations; Transporting | 5 | Expired |
| US8634827B2 | Techniques for reporting on or tracking ground vehicles | Electricity | 5 | Active |
| US9311821B2 | Techniques for reporting on or tracking ground vehicles | Electricity | 5 | Active |
| US4008797A | Mining machine conveyor with deflectible boom | Fixed Constructions | 4 | Expired |
| US8442518B2 | ADS-B link augmentation system (ALAS) | Electricity | 4 | Active |
| US4104224A | Process for preparing water-dilutable, heat-curing epoxy resin coating compositions using organic cosolvents | Chemistry; Metallurgy | 2 | Expired |
| US11943844B2 | Modular fluid heater utilizing electrothermal polymer coatings | Electricity | 0 | Active |
| US4312445A | Belt conveyor tandem drive assembly with ground level clean-out clearance | Performing Operations; Transporting | 0 | Expired |
| US9432108B2 | Augmented aircraft communication system | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.