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WELLS RALPH J

Overview
  • Total Patents
    16
About

WELLS RALPH J has a total of 16 patent applications. Its first patent ever was published in 1914. It filed its patents most often in United States and Canada. Its main competitors in its focus markets civil engineering and machines are HOLDEN CHARLES R, COOPER FRANCIS W and PALMER ALPHONSO T.

Patent filings in countries

World map showing WELLS RALPH Js patent filings in countries
# Country Total Patents
#1 United States 12
#2 Canada 4

Patent filings per year

Chart showing WELLS RALPH Js patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering
#2 Machines

Top inventors

# Name Total Patents
#1 Wells Ralph J 16

Latest patents

Publication Filing date Title
US2081966A Railway tie
US1792620A Sleeper block for railway rails
US1788003A Adjustable rail clamp
US1693878A Track liner and method of applying same
US1627217A Railway-track construction
US1584056A Railway tie
US1528999A Railway tie
US1413085A Railway tie
US1413084A Joint rest for railway rails
US1258837A Railway joint-tie.
CA174522A Concrete tie
US1218141A Railway-tie.
US1210122A Concrete tie.
CA237051A Railway tie
CA239281A Railway joint tie
CA237050A Joint rest for railway rails