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Inventor

Albert L. Brautigam

Inventor
Pittsburgh, PA, US

Overview

3→
Patents
1976–2002
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 3 as inventor

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

E21Cprimary
E21CMining or quarrying25%
E21FSafety devices, transport, filling-up, rescue, ventilation, or draining in or of mines or tunnels25%
G01NInvestigating or analysing materials by determining their chemical or physical properties25%
G08BSignalling systems, e.g. personal calling systems25%
PatentTitleYear
6,469,619'Intrinsically-safe roof hazard alert module'20025,161,857'Teleoperated control system for underground room and pillar mining'19923,986,389'Gating control system in ultrasonic inspection apparatus'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to JONES & LAUGHLIN STEEL CORP (1)· patent assignee history
1976–2002Based in Pittsburgh, PA, US· patent location history
1992Patents assigned to US INTERIOR (1)· patent assignee history
2002Patents assigned to US HEALTH (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
JONES & LAUGHLIN STEEL CORP11976
US HEALTH12002
US INTERIOR11992
Locations
LocationPatentsSpan
Pittsburgh, Pennsylvania, US31976–2002