Haofeng Hou

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Authorization management and authorization request of elevator serv...
- Patent number 12,043,517
- Issue date Jul 23, 2024
- Otis Elevator Company
- Kai Li
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Wireless signal device, system and method for elevator service request
- Patent number 11,939,186
- Issue date Mar 26, 2024
- Otis Elevator Company
- Kai Li
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Communication for elevator service request
- Patent number 11,708,237
- Issue date Jul 25, 2023
- Otis Elevator Company
- Kai Li
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Testing for wireless beacons of elevator system and field installat...
- Patent number 11,524,866
- Issue date Dec 13, 2022
- Otis Elevator Company
- Kai Li
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
AUTHORIZATION MANAGEMENT AND AUTHORIZATION REQUEST OF ELEVATOR SERV...
- Publication number 20200031616
- Publication date Jan 30, 2020
- Otis Elevator Company
- Kai Li
- B66 - HOISTING LIFTING HAULING
Information Patent Application
COMMUNICATION FOR ELEVATOR SERVICE REQUEST
- Publication number 20190330010
- Publication date Oct 31, 2019
- Otis Elevator Company
- Kai Li
- B66 - HOISTING LIFTING HAULING
Information Patent Application
WIRELESS SIGNAL DEVICE, SYSTEM AND METHOD FOR ELEVATOR SERVICE REQUEST
- Publication number 20190292010
- Publication date Sep 26, 2019
- Otis Elevator Company
- Kai Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ELEVATOR SERVICE REQUEST AND OFFLINE AUTHENTICATION OF THE ELEVATOR...
- Publication number 20190276273
- Publication date Sep 12, 2019
- Otis Elevator Company
- Yu Zhang
- B66 - HOISTING LIFTING HAULING
Information Patent Application
AUTHORIZATION MANAGEMENT AND AUTHORIZATION REQUEST OF ELEVATOR SERV...
- Publication number 20190276274
- Publication date Sep 12, 2019
- Otis Elevator Company
- Yang Yang
- B66 - HOISTING LIFTING HAULING
Information Patent Application
TESTING FOR WIRELESS BEACONS OF ELEVATOR SYSTEM AND FIELD INSTALLAT...
- Publication number 20190202657
- Publication date Jul 4, 2019
- Otis Elevator Company
- Kai Li
- B66 - HOISTING LIFTING HAULING