Donald M. Haskell
15Patents
9h-index
10Co-inventors
65Inventor score
Filing activity: Sep 25, 1975 → Jul 12, 1985
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4592830A | Hydrovisbreaking process for hydrocarbon containing feed streams | Chemistry; Metallurgy | 62 | Expired |
| US4613715A | Oxygen addition to a steam-active dehydrogenation reactor | Chemistry; Metallurgy | 25 | Expired |
| US4229602A | Dehydrocyclization process | Chemistry; Metallurgy | 17 | Expired |
| US4317795A | Catalytic alkylation of hydrocarbons | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4024028A | Extractive distillation of hydrocarbon mixtures | Chemistry; Metallurgy | 12 | Expired |
| US4301315A | Method of producing high octane alkylate gasoline | Chemistry; Metallurgy | 11 | Expired |
| US4205196A | Acid-type hydrocarbon alkylation with acid recycle streams at spaced points of a vertically-disposed elongated reactor | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4012289A | N-Butane/acetone separation using sulfolane | Chemistry; Metallurgy | 10 | Expired |
| US4207423A | Acid type hydrocarbon alkylation with acid-soluble oil addition | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4054613A | Butadiene production and purification | Chemistry; Metallurgy | 6 | Expired |
| US4031153A | Separation of styrene from xylenes | Chemistry; Metallurgy | 5 | Expired |
| US4166771A | Butadiene recovery | Chemistry; Metallurgy | 5 | Expired |
| US4076595A | Extractive distillation of C.sub.4 hydrocarbons with an extractant mixture | Chemistry; Metallurgy | 5 | Expired |
| US4179475A | Olefin feed in HF alkylation of isoparaffin with olefin | Chemistry; Metallurgy | 2 | Expired |
| US4090923A | Butadiene purification with simultaneous prefractionation and vinylacetylene rejection | Chemistry; Metallurgy | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.