Vishnu D. Singh
8Patents
4h-index
7Co-inventors
50Inventor score
Filing activity: Jun 16, 1995 → Feb 15, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7687041B2 | Apparatus and methods for urea production | Performing Operations; Transporting | 70 | Active |
| US5523483A | Integrated urea/ammonia process | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5744009A | Method and apparatus for recovering condensables in vapor from a urea vacuum evaporator | Emerging Cross-Sectional Technologies | 14 | Expired |
| US7642377B1 | Systems and methods for integrated ammonia-urea process | Emerging Cross-Sectional Technologies | 6 | Active |
| US8481786B2 | Systems and methods for integrated ammonia-urea process | Emerging Cross-Sectional Technologies | 0 | Active |
| US11784954B2 | Personalized temporary unsubscribe mechanisms for email subscriptions | Electricity | 0 | Active |
| US11616746B1 | Personalized temporary unsubscribe mechanisms for email subscriptions | Electricity | 0 | Active |
| US10287241B2 | Methods and systems for producing urea | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.