Ravishankar Ramamurthy
29Patents
11h-index
27Co-inventors
71Inventor score
Filing activity: Dec 18, 2001 → May 13, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6681171B2 | Condensation control for internal combustion engines using EGR | Emerging Cross-Sectional Technologies | 56 | Expired |
| US10073981B2 | Controlling secure processing of confidential data in untrusted devices | Electricity | 36 | Active |
| US6725848B2 | Method of controlling exhaust gas recirculation system based upon humidity | Emerging Cross-Sectional Technologies | 36 | Expired |
| US7685194B2 | Fine-grained access control in a database by preventing information leakage and removing redundancy | Physics | 32 | Active |
| US8190595B2 | Flexible query hints in a relational database | Physics | 23 | Active |
| US7437874B2 | System and method for backpressure compensation for controlling exhaust gas particulate emissions | Emerging Cross-Sectional Technologies | 20 | Active |
| US7493337B2 | Query progress estimation | Emerging Cross-Sectional Technologies | 16 | Expired |
| US7079938B2 | Influence of engine parameters on condensation protection strategies | Emerging Cross-Sectional Technologies | 13 | Expired |
| US7739269B2 | Incremental repair of query plans | Physics | 13 | Active |
| US6934621B2 | Re-entry strategy from boost mode to EGR mode | Emerging Cross-Sectional Technologies | 13 | Expired |
| US7454407B2 | Techniques for estimating progress of database queries | Emerging Cross-Sectional Technologies | 11 | Expired |
| US8185519B2 | Techniques for exact cardinality query optimization | Physics | 11 | Active |
| US9747456B2 | Secure query processing over encrypted data | Electricity | 7 | Active |
| US10396991B2 | Controlling verification of key-value stores | Electricity | 7 | Active |
| US9213867B2 | Secure cloud database platform with encrypted database queries | Electricity | 6 | Active |
| US8694551B2 | Auditing queries using query differentials | Physics | 4 | Active |
| US7958114B2 | Detecting estimation errors in dictinct page counts | Physics | 4 | Active |
| US8108154B2 | NOx emission estimation systems and methods | Emerging Cross-Sectional Technologies | 3 | Active |
| US8931265B2 | Closed loop temperature control in the SCR warm up mode to reduce emission variation | Emerging Cross-Sectional Technologies | 2 | Active |
| US10496833B2 | Controlling secure processing of confidential data in untrusted devices | Electricity | 1 | Active |
| US7637107B2 | Engine backpressure compensation system for stable emissions | Emerging Cross-Sectional Technologies | 1 | Active |
| US9953184B2 | Customized trusted computer for secure data processing and storage | Physics | 0 | Active |
| US7987672B2 | Turbocharger protection systems and methods | Emerging Cross-Sectional Technologies | 0 | Active |
| US10838957B2 | Slicing relational queries using spool operators | Physics | 0 | Active |
| US10572442B2 | Systems and methods for providing distributed tree traversal using hardware-based processing | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.