Bernd Heida
17Patents
5h-index
20Co-inventors
66Inventor score
Filing activity: Jan 23, 1984 → Mar 12, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4902828A | Recovery of aqueous glyoxylic acid solutions | Chemistry; Metallurgy | 40 | Expired |
| US7462277B2 | Continuous method for separating a C4 cut | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7393992B2 | Method for working up crude 1,3-butadiene | Emerging Cross-Sectional Technologies | 9 | Expired |
| US7556717B2 | Method and device for extractive distillation | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6166248A | Process for the separation of acrylic acid | Chemistry; Metallurgy | 7 | Expired |
| US7619126B2 | Method for obtaining crude 1,3-butadiene from a C4 fraction | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7692053B2 | Process for obtaining crude 1,3-butadiene from a C4 cut | Emerging Cross-Sectional Technologies | 4 | Active |
| US4521632A | Purification of aqueous glyoxal solutions | Chemistry; Metallurgy | 2 | Expired |
| US7557257B2 | Method for the separation of a crude C4 cut | Chemistry; Metallurgy | 2 | Expired |
| US10968152B2 | Simplified process for isolating pure 1,3-butadiene | Chemistry; Metallurgy | 1 | Active |
| US10569192B2 | Distillation device comprising a column which as three or a plurality of cells in series through which fluid flows and method for distilling or extractive distillation by use of the distillation device | Performing Operations; Transporting | 1 | Active |
| US7432411B2 | Continuous method for obtaining butenes from a C4 fraction | Chemistry; Metallurgy | 1 | Expired |
| US8766029B2 | Process for providing a vaporous purified crude C4 cut as a feed steam for an extractive distillation with a selective solvent | Chemistry; Metallurgy | 0 | Active |
| US10125063B2 | Column with separative installations for separating a mixture of hydrocarbons and/or hydrocarbon derivatives by means of an extractive distillation using a selective solvent | Chemistry; Metallurgy | 0 | Active |
| US11034631B2 | Method for obtaining pure 1,3-butadiene | Performing Operations; Transporting | 0 | Active |
| US8642828B2 | Process for purifying a recycle stream from a 1,3-butadiene processing plant | Emerging Cross-Sectional Technologies | 0 | Active |
| US8361280B2 | Process for distillatively obtaining pure 1,3-butadiene from crude 1,3-butadiene | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.