Tadeusz Witczak

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Lodz, PL

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Patents Grantslast 30 patents

Information Patent Grant
Ropeless elevator system
- Patent number 10,246,298
- Issue date Apr 2, 2019
- Otis Elevator Company
- Zbigniew Piech
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Elevator system assigning cars to floor groups
- Patent number 10,196,233
- Issue date Feb 5, 2019
- Otis Elevator Company
- Tadeusz Witczak
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Ropeless high-rise elevator installation approach
- Patent number 9,884,744
- Issue date Feb 6, 2018
- Otis Elevator Company
- Tadeusz Witczak
- B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

Information Patent Application
ROPELESS HIGH-RISE ELEVATOR INSTALLATION APPROACH
- Publication number 20160304317
- Publication date Oct 20, 2016
- Otis Elevator Company
- Tadeusz Witczak
- B66 - HOISTING LIFTING HAULING
Information Patent Application
HIGH SPEED ROPELESS ELEVATOR WITH DIFFERENT NUMBER OF HOISTWAYS UP...
- Publication number 20160304316
- Publication date Oct 20, 2016
- Otis Elevator Company
- Tadeusz Witczak
- B66 - HOISTING LIFTING HAULING
Information Patent Application
DESTINATION ASSIGNMENT AND VARIABLE CAPABILITIES IN ELEVATOR GROUPS
- Publication number 20160297640
- Publication date Oct 13, 2016
- Otis Elevator Company
- Tadeusz Witczak
- B66 - HOISTING LIFTING HAULING
Information Patent Application
ROPELESS ELEVATOR SYSTEM
- Publication number 20160297646
- Publication date Oct 13, 2016
- Otis Elevator Company
- Zbigniew Piech
- B66 - HOISTING LIFTING HAULING
Information Patent Application
STATOR REDUCTION IN ROPELESS ELEVATOR TRANSFER STATION
- Publication number 20160297648
- Publication date Oct 13, 2016
- Otis Elevator Company
- Tadeusz Witczak
- B66 - HOISTING LIFTING HAULING