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Inventor

Dennis L. Smith

Inventor
Tucson, AZ, US

Overview

3→
Patents
1994–2005
Patent span
Physics
Primary field (CPC G)

Patents· 3 as inventor

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

G01Nprimary
G01NInvestigating or analysing materials by determining their chemical or physical properties100%
PatentTitleYear
6,841,778'Method and apparatus for measuring particulates in vehicle emissions'20055,644,133'Remote vehicle emission analyzer with light conveyance to detectors through fiber optic light tubes'19975,371,367'Remote sensor device for monitoring motor vehicle exhaust systems'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994–1997Patents assigned to ENVIROTEST SYSTEMS CORP (2)· patent assignee history
1994Patents assigned to COLORADO SEMINARY (1)· patent assignee history
1994Based in Severna Park, MD, US· patent location history
1997–2005Based in Tucson, AZ, US· patent location history
2005Patents assigned to ENVIRONMENTAL SYST PROD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ENVIROTEST SYSTEMS CORP21994–1997
COLORADO SEMINARY11994
ENVIRONMENTAL SYST PROD12005
Locations
LocationPatentsSpan
Tucson, AZ, US21997–2005
Severna Park, Maryland, US11994