KONE Elevators Co. LTD
76Patents
5Active
76Granted
38Portfolio score
Filing activity: Nov 5, 1984 → Jul 19, 2021
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5502818A | Procedure for the determination of message identification in the data transmission network of an elevator system | Electricity | 72 | Expired |
| US5096020A | Elevator safety apparatus | Performing Operations; Transporting | 45 | Expired |
| US5027925A | Procedure and apparatus for damping the vibrations of an elevator car | Performing Operations; Transporting | 36 | Expired |
| US4844204A | Procedure for modernizing the control system of a lift | Performing Operations; Transporting | 22 | Expired |
| US4750590A | Counteracting elevator car oscillation | Performing Operations; Transporting | 21 | Expired |
| US5042621A | Method and apparatus for the measurement and tuning of an elevator system | Performing Operations; Transporting | 21 | Expired |
| US5518086A | Procedure and apparatus for the control of elevator doors | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5076398A | Rope suspension system for an elevator | Performing Operations; Transporting | 21 | Expired |
| US5229559A | Defining the traffic mode of an elevator, based on traffic statistical data and traffic type definitions | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4894765A | Bi-directional d.c./d.c. converter compatible with an inverter bridge | Electricity | 20 | Expired |
| US4895223A | Method for sub-zoning an elevator group | Performing Operations; Transporting | 19 | Expired |
| US4753323A | Safety system for closing doors | Fixed Constructions | 19 | Expired |
| US5140514A | Regulation of D.C. voltage of a pulse-width modulated rectifier using spatial vectors in a stationary coodinate system | Electricity | 18 | Expired |
| US4838385A | Method for coordinating elevator group traffic | Performing Operations; Transporting | 18 | Expired |
| US4870663A | Method for selecting the mode of operation of an object counting means | Physics | 17 | Expired |
| US5159995A | Safety gear for an elevator | Performing Operations; Transporting | 17 | Expired |
| US5194797A | Procedure for the regulation of an asynchronous motor | Electricity | 16 | Expired |
| US4756388A | Elevator with traction sheave | Performing Operations; Transporting | 16 | Expired |
| US5370205A | Traction sheave elevator | Performing Operations; Transporting | 15 | Expired |
| US5370208A | Double-sided safety gear | Performing Operations; Transporting | 15 | Expired |
| US5014823A | Apparatus for improving the performance of a motor-controlled hydraulic elevator | Performing Operations; Transporting | 14 | Expired |
| US5036954A | Elevator | Performing Operations; Transporting | 13 | Expired |
| US5229558A | Control of an elevator hoisting motor during under voltage conditions in the main power source | Performing Operations; Transporting | 13 | Expired |
| US5435416A | Determination of the number of persons entering and leaving an elevator car | Performing Operations; Transporting | 13 | Expired |
| US5454449A | Wall structure for an elevator, and an elevator car | Performing Operations; Transporting | 13 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.