Inventor

Frederick Cheng

Inventor
Tseung Kwan O, HK

Overview

2→
Patents
2005–2013
Patent span
Human necessities
Primary field (CPC A)

Patents· 2 as inventor

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

G01Rprimary
G01RMeasuring electric variables50%
A61BDiagnosis25%
A61GTransport, personal conveyances, or accommodation specially adapted for patients or disabled persons25%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2005Patents assigned to UNIV HONG KONG (1)· patent assignee history
2005Based in Fanling, CN· patent location history
2013Patents assigned to CHENG FREDERICK (1)· patent assignee history
2013Patents assigned to HK APPLIED SCIENCE & TECH RES (1)· patent assignee history
2013Patents assigned to LI GENG (1)· patent assignee history
2013Patents assigned to YANG EDWARD S (1)· patent assignee history
2013Based in Tseung Kwan O, HK· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHENG FREDERICKself12013
HK APPLIED SCIENCE & TECH RES12013
LI GENG12013
UNIV HONG KONG12005
YANG EDWARD S12013
Locations
LocationPatentsSpan
Tseung Kwan O, HK12013
Fanling, CN12005