Franz Heimpel
9Patents
7h-index
9Co-inventors
48Inventor score
Filing activity: Nov 6, 1995 → Feb 20, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6706774B2 | Two-component on-site foam system and its use for foaming openings for the purpose of fire protection | Chemistry; Metallurgy | 65 | Expired |
| US5631319A | Pressurized, blowing-agent-containing isocyanate semiprepolymer mixtures based on mixtures of polyhydroxyl compounds and monoalcohols and/or hydroxyketones, the use thereof for the production of polyurethane foams, and a process therefor | Emerging Cross-Sectional Technologies | 46 | Expired |
| US6520505B1 | Method of and a sealing element for sealing a gap | Electricity | 16 | Expired |
| US6464229B1 | Method and apparatus for sealing a space | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US6601852B1 | Method and apparatus for sealing a space | Electricity | 10 | Expired |
| US5834529A | Pressurized, blowing agent-containing isocyanate semiprepolymer mixtures based on lignin-polyether polyols and their use for producing polyurethane foams | Chemistry; Metallurgy | 9 | Expired |
| US6543780B1 | Method of and device for sealing a gap | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US6414045B1 | One-component polyurethane compositions with improved curing | Chemistry; Metallurgy | 5 | Expired |
| US6716377B1 | Use of plastic foams containing swellable fillers for sealing wall channels | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.