David R. Witzke
14Patents
13h-index
17Co-inventors
71Inventor score
Filing activity: Jul 27, 1994 → Feb 26, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5594095A | Viscosity-modified lactide polymer composition and process for manufacture thereof | Emerging Cross-Sectional Technologies | 178 | Expired |
| US6229046A | Lactic acid processing methods arrangements and products | Emerging Cross-Sectional Technologies | 60 | Expired |
| US6114495A | Lactic acid residue containing polymer composition and product having improved stability, and method for preparation and use thereof | Chemistry; Metallurgy | 58 | Expired |
| US6534679B2 | Lactic acid processing; methods; arrangements; and, products | Emerging Cross-Sectional Technologies | 58 | Expired |
| US6353086B1 | Lactic acid residue containing polymer composition and product having improved stability, and method for preparation and use thereof | Chemistry; Metallurgy | 53 | Expired |
| US6320077A | Lactic acid processing; methods; arrangements; and, product | Emerging Cross-Sectional Technologies | 46 | Expired |
| US6291597A | Viscosity-modified lactide polymer composition and process for manufacture thereof | Emerging Cross-Sectional Technologies | 44 | Expired |
| US6160173A | Process for the recovery of lactic acid esters and amides from aqueous solutions of lactic acid and/or salts thereof | Chemistry; Metallurgy | 38 | Expired |
| US5998552A | Viscosity-modified lactide polymer composition and process for manufacture thereof | Emerging Cross-Sectional Technologies | 37 | Expired |
| US7144977B2 | Lactic acid processing; methods; arrangements; and, products | Emerging Cross-Sectional Technologies | 33 | Expired |
| US5922832A | Impact modified melt-stable lactide polymer compositions and processes for manufacture thereof | Chemistry; Metallurgy | 32 | Expired |
| US6495631B1 | Impact modified melt-stable lactide polymer compositions and processes for manufacture thereof | Chemistry; Metallurgy | 32 | Expired |
| US5798435A | Viscosity-modified lactide polymer composition and process for manufacture thereof | Emerging Cross-Sectional Technologies | 27 | Expired |
| US6667417B2 | Process for the recovery of lactic acid | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.