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Inventor

Haiyin Ma

Inventor
Guangdong, CN

Overview

3→
Patents
2009–2011
Patent span
Electricity
Primary field (CPC H)

Patents· 3 as inventor

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

H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication50%
H04QSelecting33%
H04MTelephonic communication17%
PatentTitleYear
7,904,535'Method of cluster management of network devices and apparatus thereof'20117,609,831'Method for implementing wide area Centrex'20097,596,212'Method for a calling party to reinitiate a call in card number service'2009

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2009–2011Patents assigned to HUAWEI TECH CO LTD (3)· patent assignee history
2009Based in Guangdong, CN· patent location history
2011Based in Shenzhen, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HUAWEI TECH CO LTD32009–2011
Locations
LocationPatentsSpan
Guangdong, CN22009
Shenzhen, CN12011