Ernst Ach
32Patents
9h-index
16Co-inventors
68Inventor score
Filing activity: Feb 23, 1995 → Aug 28, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5566786A | Cable as suspension means for lifts | Textiles; Paper | 54 | Expired |
| US7040456B2 | Elevator car drive and support belt having a twisted orientation | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7607204B2 | Belt end connection for fastening the end of a supporting belt in an elevator system and method for fastening the end of a supporting belt in an elevator system | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7661514B2 | Elevator belt for an elevator installation and method of producing such an elevator belt | Textiles; Paper | 12 | Active |
| US6851519B2 | Elevator with drive unit mounted in a superior lateral section of the elevator hoistway | Performing Operations; Transporting | 12 | Expired |
| US7543685B2 | Elevator | Performing Operations; Transporting | 10 | Expired |
| US6991069B1 | Cable elevator with a drive plate | Performing Operations; Transporting | 10 | Expired |
| US6431321B1 | Tensioning device for at least one trailing rope of an elevator installation | Performing Operations; Transporting | 10 | Expired |
| US8157058B2 | Elevator with belt-like transmission means, particularly with wedge-ribbed belt, as support means and/or drive means | Performing Operations; Transporting | 9 | Active |
| US7757817B2 | Elevator system having a flat belt with wedge-shaped ribs | Textiles; Paper | 8 | Expired |
| US8210320B2 | Elevator with belt-like transmission means, particularly with wedge-ribbed belt, as support means and/or drive means | Performing Operations; Transporting | 7 | Expired |
| US7469774B2 | Belt end connection for fastening a belt end in an elevator installation, and method for protecting and checking a belt end connection in an elevator installation | Emerging Cross-Sectional Technologies | 7 | Expired |
| US8109367B2 | Counterweight and suspension for an elevator without an engine room | Performing Operations; Transporting | 6 | Active |
| US9050768B2 | Method and device for producing a support belt for an elevator installation | Emerging Cross-Sectional Technologies | 6 | Active |
| US7882935B2 | Support means system with drive pulley and support means as well as elevator installation with such a support means system | Mechanical Engineering; Lighting; Heating | 5 | Active |
| US7367431B2 | Elevator system | Performing Operations; Transporting | 5 | Expired |
| US7444732B2 | Method for installation of guide rails in an elevator shaft | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7367430B2 | Elevator system | Performing Operations; Transporting | 5 | Expired |
| US6247559A | Elevator with machine room below | Performing Operations; Transporting | 5 | Expired |
| US8348019B2 | Elevator element for driving or reversing an elevator suspension means in an elevator system | Emerging Cross-Sectional Technologies | 4 | Active |
| US7147086B2 | Guide rail arrangement for elevators | Performing Operations; Transporting | 3 | Expired |
| US8336675B2 | Elevator with flat belt as suspension means | Textiles; Paper | 3 | Active |
| US9758345B2 | Elevator belt, method for producing such an elevator belt, and elevator system having such a belt | Textiles; Paper | 2 | Active |
| US6499566B2 | Tensioning device for at least one trailing rope | Performing Operations; Transporting | 2 | Expired |
| US7647675B2 | Suspension means end connector for an elevator | Emerging Cross-Sectional Technologies | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.