Marcel Janssen
57Patents
15h-index
65Co-inventors
87Inventor score
Filing activity: May 27, 1992 → Mar 10, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6812372B2 | Silicoaluminophosphate molecular sieve | Emerging Cross-Sectional Technologies | 71 | Expired |
| US7264789B1 | Crystalline molecular sieves | Emerging Cross-Sectional Technologies | 47 | Expired |
| US7238846B2 | Conversion process | Emerging Cross-Sectional Technologies | 45 | Expired |
| US6121503A | Production of high purity olefins | Emerging Cross-Sectional Technologies | 43 | Expired |
| US6316683A | Protecting catalytic activity of a SAPO molecular sieve | Emerging Cross-Sectional Technologies | 43 | Expired |
| US6503863B2 | Heat treating a molecular sieve and catalyst | Chemistry; Metallurgy | 41 | Expired |
| US5475182A | Acid extraction of molecular sieve catalysts to improve ethylene yield | Emerging Cross-Sectional Technologies | 39 | Expired |
| US7196239B2 | Methanol and ethanol production for an oxygenate to olefin reaction system | Emerging Cross-Sectional Technologies | 38 | Expired |
| US6974889B1 | Processes for manufacture of molecular sieves | Emerging Cross-Sectional Technologies | 31 | Expired |
| US6395674B1 | Heat treating a molecular sieve and catalyst | Chemistry; Metallurgy | 29 | Expired |
| US6437208B1 | Making an olefin product from an oxygenate | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5278345A | Use of ECR-1, mazmorite and ECR-18 in the conversion of oxygenates to hydrocarbons | Emerging Cross-Sectional Technologies | 21 | Expired |
| US6953767B2 | Silicoaluminophosphate molecular sieve | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6770791B2 | Production of olefin dimers and oligomers | Chemistry; Metallurgy | 17 | Expired |
| US6875899B2 | Production of higher olefins | Emerging Cross-Sectional Technologies | 17 | Expired |
| US7309806B2 | Maintaining molecular sieve catalytic activity under water vapor conditions | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6455748B2 | Protecting catalytic activity of a SAPO molecular sieve | Emerging Cross-Sectional Technologies | 13 | Expired |
| US7288689B2 | Methanol and fuel alcohol production for an oxygenate to olefin reaction system | Emerging Cross-Sectional Technologies | 13 | Expired |
| US7015174B2 | Maintaining molecular sieve catalytic activity under water vapor conditions | Emerging Cross-Sectional Technologies | 13 | Expired |
| US7381853B2 | Production of higher olefins | Emerging Cross-Sectional Technologies | 12 | Active |
| US6225254A | Maintaining acid catalyst sites in sapo molecular sieves | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7253331B2 | Molecular sieve catalyst composition, its making and use in conversion processes | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6936566B2 | Modified metalloaluminophosphate molecular sieves | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6498120B1 | Rejuvenating SAPO molecular sieve with anhydrous liquid or vapor | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6897180B2 | Stabilization of acid catalysts | Emerging Cross-Sectional Technologies | 9 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.