Robert Duncan
13Patents
2h-index
5Co-inventors
47Inventor score
Filing activity: Dec 15, 1977 → May 20, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4136970A | Method and apparatus for regulating the size and frequency of bubbles employed for mixing liquids | Performing Operations; Transporting | 17 | Expired |
| US11274520B2 | Apparatus, system and process for regulating a control mechanism of a well | Fixed Constructions | 9 | Active |
| US11814953B2 | Apparatus, system, and method for indicating a position of valve of wellsite equipment | Physics | 1 | Active |
| US12326064B2 | Apparatus, system and process for regulating a control mechanism of a well | Fixed Constructions | 0 | Active |
| US12084944B2 | Apparatus, system and process for regulating a control mechanism of a well | Fixed Constructions | 0 | Active |
| US11988065B2 | Apparatus, system and process for regulating a control mechanism of a well | Fixed Constructions | 0 | Active |
| US12209483B2 | Apparatus, system and method for regulating a control mechanism of a well | Fixed Constructions | 0 | Active |
| US12188329B2 | Apparatus, system and method for regulating a control mechanism of a well | Fixed Constructions | 0 | Active |
| US11988087B2 | Apparatus, system, and method for indicating a position of valve of wellsite equipment | Physics | 0 | Active |
| US12168927B2 | Apparatus, system, and method for indicating a position of valve of wellsite equipment | Physics | 0 | Active |
| US11920465B2 | Apparatus, system, and method for indicating a position of valve of wellsite equipment | Physics | 0 | Active |
| US11608708B2 | Apparatus, system and process for regulating a control mechanism of a well | Fixed Constructions | 0 | Active |
| US12215566B2 | Apparatus, system and method for regulating a control mechanism of a well | Fixed Constructions | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.