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FRIESTEDT LUTHER P

Overview
  • Total Patents
    15
About

FRIESTEDT LUTHER P has a total of 15 patent applications. Its first patent ever was published in 1901. It filed its patents most often in United States. Its main competitors in its focus markets civil engineering are CHITIS WOLF, YAMADA KUNIMITSU and CG ENGINEERING & CONSULTING CO LTD.

Patent filings in countries

World map showing FRIESTEDT LUTHER Ps patent filings in countries
# Country Total Patents
#1 United States 15

Patent filings per year

Chart showing FRIESTEDT LUTHER Ps patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering

Top inventors

# Name Total Patents
#1 Friestedt Luther P 15

Latest patents

Publication Filing date Title
US932115A Metallic railway-tie.
US834051A Sheet-piling.
US832964A Construction of buildings.
US871582A Sheet-piling.
US762042A Method of raising subterranean rivers.
US832371A Ship channel or canal.
US756618A Sheet-piling.
US738312A Pile-driver buffer.
US735489A Sheet-piling.
US739072A Sheet-piling.
US734843A Sheet-piling.
US730755A Sheet-piling.
US733713A Sheet-piling.
US734314A Sheet-piling.
US707837A Sheet-piling.