CONSTRUCTION RESEARCH & TECHNOLOGY GMBH
🏢 View company profile →216Patents
173Active
216Granted
57Portfolio score
Filing activity: Jan 25, 2001 → Nov 16, 2021 · 76 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6858074B2 | High early-strength cementitious composition | Chemistry; Metallurgy | 101 | Expired |
| US6745531B1 | Pressure equalized compartment for exterior insulation and finish system | Fixed Constructions | 84 | Expired |
| US6804922B1 | Integral composite building material and uses therefor | Fixed Constructions | 74 | Expired |
| US7556684B2 | Amine containing strength improvement admixture | Chemistry; Metallurgy | 74 | Active |
| US7972435B2 | Amine containing strength improvement admixture | Chemistry; Metallurgy | 72 | Active |
| USD656603S1 | Trim bead for a building wall | General | 37 | Expired |
| US8333532B2 | Expansion joint sealing system | Fixed Constructions | 26 | Active |
| US6908955B2 | Oligomeric dispersant | Chemistry; Metallurgy | 25 | Expired |
| US7288147B2 | Providing freezing and thawing resistance to cementitious compositions | Chemistry; Metallurgy | 22 | Expired |
| US7265178B2 | Polyurethane-polymer hybrid-dispersion with enhanced surface properties, method for the production and utilization thereof | Emerging Cross-Sectional Technologies | 20 | Expired |
| US7922808B2 | Freeze-thaw durability of dry cast cementitious mixtures | Emerging Cross-Sectional Technologies | 20 | Active |
| US7605196B2 | Water-soluble copolymers containing sulfo groups, method for the production and use thereof | Chemistry; Metallurgy | 19 | Expired |
| US8653186B2 | Plasticizer-containing hardening accelerator composition | Emerging Cross-Sectional Technologies | 19 | Active |
| US6875801B2 | Solubilized defoamers for cementitious compositions | Emerging Cross-Sectional Technologies | 19 | Expired |
| US8349960B2 | Polymer-modified building material dry-mixes | Emerging Cross-Sectional Technologies | 18 | Active |
| US6942727B2 | High early-strength fiber reinforced cementitious composition | Chemistry; Metallurgy | 18 | Expired |
| US7772300B2 | Polymer composition and use of the same as an additive in aqueous construction systems and water-based paint and coating systems | Emerging Cross-Sectional Technologies | 17 | Expired |
| US7395570B2 | Expansion joint system for accommodation of large movement in multiple directions | Fixed Constructions | 15 | Expired |
| US6912751B2 | Expansion joint system for accommodation of large movement in multiple directions | Fixed Constructions | 14 | Expired |
| US7910640B2 | Polycondensation product based on aromatic or heteroaromatic compounds, method for the production thereof, and use thereof | Chemistry; Metallurgy | 14 | Expired |
| US7044170B2 | Hydraulic cementitious composition with improved bleeding resistance | Emerging Cross-Sectional Technologies | 13 | Expired |
| US7238760B2 | Water-soluble or water-swellable, associatively thickening copolymers containing sulfo groups, method for producing the same and use thereof | Chemistry; Metallurgy | 13 | Expired |
| US8806825B2 | Exterior finish system | Emerging Cross-Sectional Technologies | 13 | Active |
| US8887463B2 | Cover assembly for structural members | Fixed Constructions | 12 | Active |
| US6751918B2 | Cover assembly for structural members | Fixed Constructions | 11 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.