August Lehner
48Patents
10h-index
83Co-inventors
78Inventor score
Filing activity: Aug 25, 1975 → Mar 17, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4400497A | Storage stable, heat curable mixtures of polyisocyanate and polyol and process for their manufacture and use | Emerging Cross-Sectional Technologies | 37 | Expired |
| US5556918A | Polymeric materials suitable as dispersing resins | Physics | 30 | Expired |
| US5922469A | Materials suitable as crosslinkable binder components | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4328282A | Magnetic recording media | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4590144A | Photopolymerizable recording material and the production of relief plates using this recording material | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4320171A | Magnetic recording media containing elastomeric polyurethane binders in the magnetic coating | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4568612A | Magnetic recording media | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4559118A | Magnetic recording media | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4334034A | Process for the preparation of polymerizable polyurethane elastomers | Chemistry; Metallurgy | 17 | Expired |
| US4058646A | Magnetic recording media containing elastomeric polyurethane binders in the magnetic coating | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5082737A | Magnetic recording media having a branched thermoplastic polyurethane binder containing a polysiloxane component in the main chain | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4567108A | Magnetic recording media | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4314922A | Process for the preparation of aqueous polyurethane dispersions | Chemistry; Metallurgy | 10 | Expired |
| US4310565A | Process of making a magnetic recording media | Physics | 10 | Expired |
| US4058506A | Thermoplastic, elastic polyurethanes which are soluble in ethers and/or ketones | Chemistry; Metallurgy | 9 | Expired |
| US4567109A | Magnetic recording media | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4472455A | Production of magnetic recording media | Physics | 8 | Expired |
| US4666781A | Magnetic recording media | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4568610A | Magnetic recording media | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4357221A | Process for coating electrically conductive objects with polyurethane | Chemistry; Metallurgy | 8 | Expired |
| US5543226A | Magnetic recording media | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4011084A | Fluid photo-crosslinkable compositions for the manufacture of relief printing plates | Chemistry; Metallurgy | 6 | Expired |
| US5756637A | Polymeric materials suitable as dispersing resins | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5552229A | Magnetic recording medium containing magnetic material dispersed in a polyurethaneurea-polyurethane binder | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4482664A | Dispersions of finely divided synthetic resins in plasticizers | Chemistry; Metallurgy | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.