LexDanaLexDanabeta
Inventor

Erchao Zhang

Inventor
Jiangsu, CN

Overview

2→
Patents
2001–2021
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 2 as inventor

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

E21Bprimary
E21BEarth or rock drilling33%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes33%
H04LTransmission of digital information, e.g. telegraphic communication33%
PatentTitleYear
11,008,859Method for analyzing coalbed methane geological selection of multi-coalbed high ground stress region20216,252,879'Single counter for controlling multiple finite state machines in a multi-port bridge for local area network'2001

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2001Patents assigned to SONY CORP (1)· patent assignee history
2001Patents assigned to SONY ELECTRONICS INC (1)· patent assignee history
2001Based in Sunnyvale, CA, US· patent location history
2021Patents assigned to UNIV CHINA MINING (1)· patent assignee history
2021Based in Jiangsu, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SONY CORP12001
SONY ELECTRONICS INC12001
UNIV CHINA MINING12021
Locations
LocationPatentsSpan
Jiangsu, CN12021
Sunnyvale, California, US12001