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Inventor

Guanzhong Gao

Inventor
Schenectady, NY, US

Overview

5→
Patents
2005–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 5 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H01Fprimary
H01FMagnets29%
B66DCapstans14%
F16DCouplings for transmitting rotation14%
G01RMeasuring electric variables14%
H02KDynamo-electric machines14%
Y10TTechnical subjects covered by former us classification14%
PatentTitleYear
10,975,927Brake device for elevator and an elevator system20217,340,820'Machine stator fabrication method'20087,330,096'Fault current limiter'20086,930,610'Monitoring system and method for wiring systems'20056,873,236'Fault current limiter'2005

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2005–2008Patents assigned to GEN ELECTRIC (4)· patent assignee history
2005–2008Based in Schenectady, NY, US· patent location history
2008Based in Niskayuna, NY, US· patent location history
2021Patents assigned to OTIS ELEVATOR CO (1)· patent assignee history
2021Based in Tianjin, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GEN ELECTRIC42005–2008
OTIS ELEVATOR CO12021
Locations
LocationPatentsSpan
Schenectady, New York, US32005–2008
Tianjin, CN12021
Niskayuna, New York, US12008