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Inventor

Joseph L. Stahl

Inventor
Stockholm, SE

Overview

2→
Patents
1989–2021
Patent span
Performing operations
Primary field (CPC B)

Patents· 2 as inventor

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

B64Cprimary
B64CAeroplanes20%
B64UUnmanned aerial vehicles [uav]20%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds20%
G08GTraffic control systems20%
H04WWireless communication networks20%
PatentTitleYear
10,909,861Unmanned aerial vehicle in controlled airspace20214,879,353'Bromination of polystyrene using bromine as the reaction solvent'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989Patents assigned to GREAT LAKES CHEMICAL CORP (1)· patent assignee history
1989Based in West Lafayette, IN, US· patent location history
2021Patents assigned to ERICSSON TELEFON AB L M (1)· patent assignee history
2021Based in Stockholm, SE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ERICSSON TELEFON AB L M12021
GREAT LAKES CHEMICAL CORP11989
Locations
LocationPatentsSpan
Stockholm, SE12021
West Lafayette, IN, US11989