Michael D. Ackerson
32Patents
11h-index
6Co-inventors
68Inventor score
Filing activity: Feb 11, 1991 → Jan 21, 2025
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6123835A | Two phase hydroprocessing | Chemistry; Metallurgy | 85 | Expired |
| US7291257B2 | Two phase hydroprocessing | Chemistry; Metallurgy | 49 | Expired |
| US6428686B1 | Two phase hydroprocessing | Chemistry; Metallurgy | 43 | Expired |
| US6881326B2 | Two phase hydroprocessing | Chemistry; Metallurgy | 42 | Expired |
| US6497813B2 | Solvent extraction refining of petroleum products | Chemistry; Metallurgy | 23 | Expired |
| US7569136B2 | Control system method and apparatus for two phase hydroprocessing | Chemistry; Metallurgy | 22 | Active |
| US5474668A | Petroleum-wax separation | Chemistry; Metallurgy | 20 | Expired |
| US5620588A | Petroleum-wax separation | Chemistry; Metallurgy | 19 | Expired |
| US5196116A | Process for petroleum - wax separation at or above room temperature | Chemistry; Metallurgy | 15 | Expired |
| US6890425B2 | Solvent extraction refining of petroleum products | Chemistry; Metallurgy | 14 | Expired |
| US9096804B2 | Process for hydroprocessing of non-petroleum feedstocks | Emerging Cross-Sectional Technologies | 11 | Active |
| US9828552B1 | Process for hydroprocessing of non-petroleum feedstocks | Emerging Cross-Sectional Technologies | 10 | Active |
| US10487268B2 | Process for hydroprocessing of non-petroleum feedstocks | Emerging Cross-Sectional Technologies | 9 | Active |
| US10260009B2 | Hydroprocessing method with high liquid mass flux | Chemistry; Metallurgy | 8 | Active |
| US10717938B2 | Hydroprocessing method with high liquid mass flux | Chemistry; Metallurgy | 8 | Active |
| US10961463B2 | Process for hydroprocessing of non-petroleum feedstocks | Emerging Cross-Sectional Technologies | 8 | Active |
| US5853564A | Petroleum-wax separation | Chemistry; Metallurgy | 7 | Expired |
| US10981142B2 | Hydroprocessing reactor to lower pressure drop and extend catalyst life | Performing Operations; Transporting | 7 | Active |
| US6024862A | Petroleum-wax separation | Chemistry; Metallurgy | 5 | Expired |
| US11525096B2 | Method for treating renewable feedstocks | Chemistry; Metallurgy | 4 | Active |
| US10611966B2 | Pyrolysis reactor system and method | Emerging Cross-Sectional Technologies | 2 | Active |
| US11427762B2 | Pyrolysis reactor system and method | Emerging Cross-Sectional Technologies | 2 | Active |
| US11254883B2 | Method and system for treating renewable feedstocks | Emerging Cross-Sectional Technologies | 2 | Active |
| US12195677B2 | Process for hydroprocessing of non-petroleum feedstocks | Emerging Cross-Sectional Technologies | 0 | Active |
| US12421459B2 | Process for hydroprocessing of non-petroleum feedstocks with hydrogen production | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.