caption death_date death_place birth_place image_size birth_date image article_title name
f. 1890 -rrb- . l . wilhelm hellesen and wife -lrb- circa december 22 , 1892 denmark kalundborg , denmark 200px 1836 frederik_louis_wilhelm_hellesen . jpg wilhelm hellesen
 frederik louis wilhelm hellesen
wilhelm hellesen

frederik louis wilhelm hellesen -lrb- 1836 -- december 22 , 1892 -rrb- was a danish inventor and industrialist .
in 1887 he designed what is thought to be the first dry cell battery based on the leclanché cell design .
the same year he founded the company `` w. hellesen '' in 1889 he sold his first batteries to the danish telephone company .
the same year a young chemist valdemar ludvigsen -lrb- 1861 -- 1939 -rrb- came to the factory helping by the further development of the batteries .
when frederik hellesen died in 1892 his widow took over the company with the help of ludvigsen .
in 1906 v. ludvigsen became the sole owner of the factory with the name a/s hellesens enke & v. ludvigsen .
-lrb- later known as a/s tudor-hellesens , a/s hellesens , and gn hellesens -rrb- , now defunct .
today the hellesens brand name is owned by duracell .
in 1992 the danish company was sold to gp batteries international in singapore belonging to gold peak industries ltd. .
hong kong .
in 2005 the last factory in thisted was closed and all machinery were shipped to a new factory in malaysia .
