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Inventor

Michael Twigger

Inventor
Blacksburg, VA, US

Overview

2→
Patents
2005–2006
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.

E21Dprimary
E21DShafts33%
E21FSafety devices, transport, filling-up, rescue, ventilation, or draining in or of mines or tunnels33%
G01SRadio direction-finding33%
PatentTitleYear
7,076,346'Automated continuous haulage system'20066,945,738'Method and apparatus for safety protection of temporary roof support'2005

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2005Patents assigned to DBT AMERICA (1)· patent assignee history
2005–2006Based in Blacksburg, VA, US· patent location history
2006Patents assigned to VIRGINIA TECH INTELL PROP (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DBT AMERICA12005
VIRGINIA TECH INTELL PROP12006
Locations
LocationPatentsSpan
Blacksburg, Virginia, US22005–2006