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Inventor

Ernest G. Burkhardt

Inventor
Wall, NJ, US

Overview

3→
Patents
1978–1988
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.

G02Bprimary
G02BOptical elements, systems or apparatus40%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light40%
G01NInvestigating or analysing materials by determining their chemical or physical properties20%
PatentTitleYear
4,764,246'Buried undercut mesa-like waveguide and method of making same'19884,725,112'Buried undercut mesa-like waveguide'19884,105,919'Spectrophone with field tuning of absorption cell'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978Patents assigned to BELL TELEPHONE LABOR INC (1)· patent assignee history
1978–1988Based in Wall, NJ, US· patent location history
1988Patents assigned to AMERICAN TELEPHONE & TELEGRAPH (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
AMERICAN TELEPHONE & TELEGRAPH21988
BELL TELEPHONE LABOR INC11978
Locations
LocationPatentsSpan
Wall, New Jersey, US31978–1988