Charles J. Plank
35Patents
20h-index
6Co-inventors
74Inventor score
Filing activity: Jan 26, 1970 → Feb 13, 1985
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4076842A | Crystalline zeolite ZSM-23 and synthesis thereof | Emerging Cross-Sectional Technologies | 325 | Expired |
| US4016245A | Crystalline zeolite and method of preparing same | Emerging Cross-Sectional Technologies | 302 | Expired |
| US3960978A | Converting low molecular weight olefins over zeolites | Emerging Cross-Sectional Technologies | 162 | Expired |
| US4021502A | Converting low molecular weight olefins over zeolites | Emerging Cross-Sectional Technologies | 94 | Expired |
| US4079095A | Manufacture of light olefins | Emerging Cross-Sectional Technologies | 75 | Expired |
| US4046859A | Crystalline zeolite and method of preparing same | Performing Operations; Transporting | 71 | Expired |
| US3992466A | Hydrocarbon conversion | Emerging Cross-Sectional Technologies | 61 | Expired |
| US4086186A | Crystalline zeolite ZSM-34 and method of preparing the same | Chemistry; Metallurgy | 58 | Expired |
| US4151189A | Synthesizing low sodium crystalline aluminosilicate zeolites with primary amines | Emerging Cross-Sectional Technologies | 56 | Expired |
| US4175114A | Method for producing zeolites | Emerging Cross-Sectional Technologies | 52 | Expired |
| US4011278A | Conversion of polar compounds using a ZSM-5 zeolite catalyst | Emerging Cross-Sectional Technologies | 47 | Expired |
| US4021447A | Synthesis of zeolite ZSM-4 | Emerging Cross-Sectional Technologies | 43 | Expired |
| US4157293A | Aromatization of C.sub.2 -C.sub.10 hydrocarbons over stabilized zinc-containing zeolites | Chemistry; Metallurgy | 37 | Expired |
| US4341748A | Method for producing zeolites | Emerging Cross-Sectional Technologies | 36 | Expired |
| US4052472A | Mordenite conversion of alkanols to penta- and hexamethyl benzenes | Chemistry; Metallurgy | 35 | Expired |
| US4306106A | Conversion of polar compounds using a ZSM-5 zeolite catalyst | Emerging Cross-Sectional Technologies | 27 | Expired |
| US4079096A | Manufacture of light olefins | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4104151A | Organic compound conversion over ZSM-23 | Performing Operations; Transporting | 24 | Expired |
| US3939058A | Method for fluid cracking with a composite catalyst | Performing Operations; Transporting | 23 | Expired |
| US4199556A | Method for producing zeolites | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4001106A | Catalytic conversion of hydrocarbons | Performing Operations; Transporting | 18 | Expired |
| US4141859A | Novel reforming catalysts | Chemistry; Metallurgy | 18 | Expired |
| US5102644A | Method for producing zeolites | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4081490A | Hydrocarbon conversion over ZSM-35 | Chemistry; Metallurgy | 13 | Expired |
| US4247416A | Crystalline zeolite ZSM-25 | Chemistry; Metallurgy | 13 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.