Robert M. Nelson
12Patents
7h-index
7Co-inventors
59Inventor score
Filing activity: Feb 14, 1980 → Jun 14, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4834133A | Control valve | Emerging Cross-Sectional Technologies | 31 | Expired |
| US5890809A | Carrying bag with deployable bottle pouch | Human Necessities | 30 | Expired |
| US6567675B1 | Programmable automatic prefix dialer for wireless | Electricity | 26 | Expired |
| US4496287A | Sensors for detection of fluid condition, and control systems utilizing their signals | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US4376449A | Two reservoir system in which fluid is drawn from one to maintain a level in the other | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5009927A | Method for coating fabric surface with electrically conductive film | Chemistry; Metallurgy | 10 | Expired |
| US4784048A | Filter system incorporated with cab for orchard sprayer | Performing Operations; Transporting | 8 | Expired |
| US5806472A | Method and means for removal of used oil and blending with fuel for disposal in an engine | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US4747300A | Sensing pump with improved discrimination between liquids and gases | Emerging Cross-Sectional Technologies | 6 | Expired |
| US7975572B2 | Methods and apparatus for make up and break out of tubular connections | Fixed Constructions | 3 | Active |
| US5163212A | Safety tool for handling of unitized jaw assembly in power sucker rod tongs | Emerging Cross-Sectional Technologies | 0 | Expired |
| US9777716B2 | Dual displacement fluid level control pump | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.