Werner Langer
7Patents
3h-index
25Co-inventors
49Inventor score
Filing activity: Feb 8, 1991 → Feb 10, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5207942A | Preparation of mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates having a reduced iodine color number | Chemistry; Metallurgy | 11 | Expired |
| US5641851A | Preparation of biuret-containing polyisocyanates | Chemistry; Metallurgy | 10 | Expired |
| US5246993A | Oligomeric carbodiimides | Chemistry; Metallurgy | 8 | Expired |
| US6414184B1 | Process for producing polyisocyanates containing biuret groups from (cyclo)aliphatic diisocyanates | Chemistry; Metallurgy | 2 | Expired |
| US5532329A | Copolymers and mixtures which are self-curable with atmospheric humidity | Chemistry; Metallurgy | 2 | Expired |
| US7022874B2 | Preparation of biuret-containing polyisocyanates | Chemistry; Metallurgy | 2 | Expired |
| US5698694A | Process for preparing substituted pyrimidines | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.