Rolf Lehmann
52Patents
13h-index
21Co-inventors
84Inventor score
Filing activity: Aug 8, 1974 → Feb 25, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4721154A | Method of, and apparatus for, the continuous casting of rapidly solidifying material | Performing Operations; Transporting | 40 | Expired |
| US4605366A | Calender for pressure and thermal treatment of material webs | Performing Operations; Transporting | 26 | Expired |
| US3997953A | Temperature-controlled roll for a rolling mill | Human Necessities | 26 | Expired |
| US5240666A | Apparatus and method for producing plastic foils | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US5290223A | Deflection controlled roll | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US4282639A | Heated controlled deflection roll | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US4073549A | Hydrostatic supporting device | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US3997952A | Roll for a rolling mill | Textiles; Paper | 18 | Expired |
| US4091517A | Hydrostatic support arrangement | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US4041752A | Rolling mills having hydraulic forces exerted on the exterior roll surfaces | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US5393290A | Roll with adjustable deflection | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US4726691A | Hydrostatic support arrangement | Textiles; Paper | 13 | Expired |
| US4422318A | Roller with a roller surface which is to be heated or cooled | Performing Operations; Transporting | 13 | Expired |
| US4282638A | Controlled deflection roll | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US4058877A | Deflection-controlled roll for the pressure treatment of materials in web form | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US4069569A | Deflection-controlled roll for the pressure treatment of materials in web form | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US3990935A | Machine for producing a corrugated sheet | Performing Operations; Transporting | 12 | Expired |
| US4218905A | Rolling mill | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US4249290A | Controlled deflection roll | Performing Operations; Transporting | 11 | Expired |
| US4983090A | System for feeding bulk material | Performing Operations; Transporting | 11 | Expired |
| US4059976A | Rolling mill | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US4124349A | Rolling mill with two press gaps | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US4090282A | Deflection control device | Textiles; Paper | 10 | Expired |
| US5431321A | Roll for web pressing or web guiding | Performing Operations; Transporting | 9 | Expired |
| US5527422A | Machine for continuous manufacture of chipboards, fibreboards or similar products | Emerging Cross-Sectional Technologies | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.