Walter Klan
9Patents
6h-index
12Co-inventors
56Inventor score
Filing activity: Jul 11, 1988 → May 25, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6472449B1 | Compressed, rigid polyurethane foams | Chemistry; Metallurgy | 16 | Expired |
| US7671104B2 | Fine cell, water-blown rigid polyurethane foams | Chemistry; Metallurgy | 13 | Expired |
| US5840781A | Polyether polyols, polyol formulation containing them and their use in the production of hard polyurethane foams | Chemistry; Metallurgy | 12 | Expired |
| US6306920A | Method for producing closed-cell rigid polyurethane foams having low thermal conductivity | Chemistry; Metallurgy | 11 | Expired |
| US4857560A | Reaction products useful as catalysts in the production of isocyanate-based plastics | Chemistry; Metallurgy | 10 | Expired |
| US6107359A | Polyether polyols, polyol formulation containing them and their use in the production of hard polyurethane foams | Chemistry; Metallurgy | 7 | Expired |
| US6316513A | Process for the producing of hard polyurethane foams with low heat conductivity | Chemistry; Metallurgy | 6 | Expired |
| US5736588A | Process for preparing rigid polyurethane foams | Chemistry; Metallurgy | 6 | Expired |
| US6071978A | Method of producing hydrocarbon-expanded rigid polyurethane foams | Chemistry; Metallurgy | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.