Hendricus A. Dirkse
13Patents
6h-index
21Co-inventors
62Inventor score
Filing activity: Sep 18, 1987 → Apr 11, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7160518B2 | Cyclone separator | Chemistry; Metallurgy | 38 | Expired |
| US4941779A | Compartmented gas injection device | Chemistry; Metallurgy | 25 | Expired |
| US4830545A | Feed line design | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5129766A | Aeration tube discharge control device | Chemistry; Metallurgy | 17 | Expired |
| US5106240A | Aerated discharge device | Chemistry; Metallurgy | 15 | Expired |
| US6736960B1 | Feed injection system for catalytic cracking process | Performing Operations; Transporting | 7 | Expired |
| US4834588A | Feed line-pulsed gas injection | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4934876A | Aeration apparatus for discharge control of particulate matter | Chemistry; Metallurgy | 5 | Expired |
| US4869622A | Feed hopper design | Chemistry; Metallurgy | 5 | Expired |
| US4844663A | Feed line-ultrasonic activated gas injection | Chemistry; Metallurgy | 5 | Expired |
| US7250140B2 | FCC reactor | Performing Operations; Transporting | 4 | Expired |
| US7077949B2 | FCC reactor vessel | Chemistry; Metallurgy | 2 | Expired |
| US6569317B1 | Trickle valve | Chemistry; Metallurgy | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.