Bernhard Wojtech
10Patents
4h-index
22Co-inventors
56Inventor score
Filing activity: Jul 1, 1975 → Jul 10, 1990
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5073622A | Process for the preparation of novolak resins with low metal ion content | Chemistry; Metallurgy | 48 | Expired |
| US4373073A | Process for the preparation of glycidyl ethers of monohydric or polyhydric phenols, the glycidyl ethers and use thereof | Chemistry; Metallurgy | 16 | Expired |
| US4720577A | Process for the extraction of carboxylic acids from dilute aqueous solutions | Chemistry; Metallurgy | 7 | Expired |
| US4196180A | Purification of phosphoric acid by means of organic solvents | Chemistry; Metallurgy | 5 | Expired |
| US4814518A | Process for extracting nitrohydroxyaromatics from aqueous solutions | Chemistry; Metallurgy | 3 | Expired |
| US4626605A | Process for extracting phenols from aqueous solutions | Chemistry; Metallurgy | 3 | Expired |
| US3996336A | Purification of phosphoric acid | Chemistry; Metallurgy | 2 | Expired |
| US4986974A | Process for the separation of halogenated hydrocarbons from hydrochloric acid | Emerging Cross-Sectional Technologies | 0 | Expired |
| US5068358A | Process for extracting N-methyl-2-pyrrolidone | Chemistry; Metallurgy | 0 | Expired |
| US4864065A | Process for removing halogenated hydroxyaromatics from aqueous solutions | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.