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Milestones from over 100 years

of corporate history

1921: 1958:
A subsidiary is set The world’s first separa-
up in Neumarkt ble earth electrode, also
in der Oberpfalz - referred to as earth rod,
today’s head office. enters the market.

1910: 1923: 1933: 1948:
Hans Dehn registers Hans Dehn starts Hans Dehn’s sons join The Dehn family decides
an electrical instal- manufacturing the company which to move their produc-
lation company in lightning protec- now operates under tion from Nuremberg to
Nuremberg and starts tion and earthing the company name Neumarkt.
to install lightning equipment. DEHN & SÖHNE.
protection systems.

1910

1920 1930 1940 1950

1918: 1953:
He comes up with a Richard Dehn is
new lightning pro- granted his first
tection component, patent for the inven-
a ridge conductor tion of a ball pin for
holder for lightning safety equipment.
protection wires, This invention paves
and is granted his the way for our
first patent for his safety equipment
invention. portfolio.

1929:
Hans Dehn is 1954:
granted his DEHN introduces to
second the market the world’s
patent first surge arrester for
for the indoor use, J250. This
invention of forms the foundation
a test sleeve for our surge protec-
for lightning tion portfolio.
rods.
1954:
DEHN becomes an
exporting country:
First representative
office in Austria.

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