Walter Meckel
52Patents
18h-index
66Co-inventors
87Inventor score
Filing activity: Oct 15, 1975 → Dec 13, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4092286A | Production of water-dispersible polyurethanes having ionic groups and hydrophilic side chains | Emerging Cross-Sectional Technologies | 93 | Expired |
| US5710233A | Polyurethane elastomers with reduced gas permeability | Chemistry; Metallurgy | 88 | Expired |
| US4292226A | Process for the production of aqueous dispersions or solutions of polyurethane polyureas, and dispersions or solution obtainable by this process and their use | Emerging Cross-Sectional Technologies | 43 | Expired |
| US5166302A | Moisture-curing, NCO-reactive polyurethane hotmelt adhesive composition | Chemistry; Metallurgy | 41 | Expired |
| US4870129A | Adhesive and use of the adhesive for the formation of bonds | Chemistry; Metallurgy | 32 | Expired |
| US4574147A | Process for the production of polyurethanes, polyurethanes containing terminal aromatic amino groups and their use | Emerging Cross-Sectional Technologies | 25 | Expired |
| US5998538A | Solvent-free, two-component polyurethane adhesive systems | Chemistry; Metallurgy | 25 | Expired |
| US5164252A | Hydrophobizing and oleophobizing compositions | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5162457A | Hot melt adhesives | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4857565A | Process for the continuous production of aqueous polyurethane dispersions and their use as a coating composition or as an adhesive | Chemistry; Metallurgy | 21 | Expired |
| US4670100A | Aqueous solutions or dispersions of polyisocyanate addition products, a process for their preparation, and their use as coating compounds or as sizing agents for paper | Textiles; Paper | 21 | Expired |
| US5252617A | Expandable polyurethane powder preparations containing blowing agents and their use for the production of foamed polyurethane moldings | Chemistry; Metallurgy | 21 | Expired |
| US4769436A | Polyester polyalcohols containing amino and amide groups and poly (urea) urethane produced therefrom | Chemistry; Metallurgy | 20 | Expired |
| US5143995A | Adhesives based on polyols and polyisocyanates | Chemistry; Metallurgy | 20 | Expired |
| US5115073A | Rapidly crystallizing polyurethane systems | Chemistry; Metallurgy | 19 | Expired |
| US4946535A | Polyester polyurethanes containing hydroxyl end groups and their use as adhesives | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4985490A | Method of direct manufacture of pigmented polyurethane powder | Chemistry; Metallurgy | 19 | Expired |
| US5190607A | Moisture-curing, NCO-reactive polyurethane hotmelt adhesive composition | Chemistry; Metallurgy | 18 | Expired |
| US4616061A | Aqueous solutions or dispersions of polyisocyanate addition products, a process for the production thereof and the use thereof as coating agents or as sizing agents for paper | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5250610A | Aqueous polyurethane dispersions and their use as laminating adhesives | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5432228A | Aqueous solutions and dispersions of polyisocyanate polyaddition products, a process for the production of the aqueous solutions and dispersions and their use as adhesives | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5210170A | Process for stabilizing plastics containing ester groups | Chemistry; Metallurgy | 16 | Expired |
| US4910339A | Isocyanate derivatives containing carbodiimide groups, a process for their production and their use as additives for aqueous solutions or dispersions of plastics | Chemistry; Metallurgy | 15 | Expired |
| US4623416A | Aqueous solutions or dispersions of polyisocyanate polyaddition products, a process for their production and their use as, or in the production of, adhesives | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4166580A | Drip irrigation apparatus | Emerging Cross-Sectional Technologies | 15 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.