Udo Gropp
17Patents
4h-index
32Co-inventors
56Inventor score
Filing activity: Mar 20, 1995 → Mar 15, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6977310B2 | Method for the continuous production of alkyl (meth)acrylates | Chemistry; Metallurgy | 23 | Expired |
| US7999130B2 | Methods for producing alkyl(meth)acrylates | Chemistry; Metallurgy | 14 | Active |
| US5541284A | Method for processing crude polyoxymethylene | Chemistry; Metallurgy | 11 | Expired |
| US7423173B2 | Method for producing alpha-hydroxycarboxylic acids and the esters thereof | Chemistry; Metallurgy | 6 | Expired |
| US6469203B1 | Method for depolymerizing polymethylmethacrylate | Chemistry; Metallurgy | 4 | Expired |
| US8143434B2 | Production by distillation of acetone cyanhydrin and method for producing methacrylic ester and subsequent products | Chemistry; Metallurgy | 2 | Active |
| US8802020B2 | Reactor for preparing hydrogen cyanide by the Andrussow process | Performing Operations; Transporting | 1 | Active |
| US8334399B2 | Method for producing acetone cyanohydrin and the subsequent products thereof by specific cooling | Chemistry; Metallurgy | 1 | Active |
| US8889899B2 | Transesterification methods | Chemistry; Metallurgy | 1 | Expired |
| US8129559B2 | Process for preparing cyanohydrins and their use in the preparation of alkyl esters of methacrylic acid | Chemistry; Metallurgy | 0 | Active |
| US8575388B2 | Method for producing methacrylic acid | Chemistry; Metallurgy | 0 | Active |
| US8389762B2 | Method for purifying methacrylic acid | Chemistry; Metallurgy | 0 | Active |
| US8586779B2 | Method for producing methacrylic alkyl esters by way of azeotropic distillation | Performing Operations; Transporting | 0 | Active |
| US9169194B2 | Metering ring | Emerging Cross-Sectional Technologies | 0 | Active |
| US9637574B2 | Process and apparatus for preparing alkyl esters of methacrylic acid | Textiles; Paper | 0 | Active |
| US8324424B2 | Method for the adsorptive purification of alkyl methacrylates | Chemistry; Metallurgy | 0 | Active |
| US9458083B2 | Method for hydrolysing acetone cyanohydrin | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.