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PARMLEY WALTER C

Overview
  • Total Patents
    18
About

PARMLEY WALTER C has a total of 18 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, machines and mechanical elements are AIR CELL INNOVATIONS PTY LTD, SAWATA KENZAISHA KK and TURNERS ASBESTOS CEMENT CO LTD.

Patent filings in countries

World map showing PARMLEY WALTER Cs patent filings in countries
# Country Total Patents
#1 United States 18

Patent filings per year

Chart showing PARMLEY WALTER Cs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Parmley Walter C 18
#2 Charles Gilman 2

Latest patents

Publication Filing date Title
US1781699A Reenforced concrete pipe
US1774664A Joint for conduits
US1752392A Pen
US1585785A Molding apparatus for concrete articles
US1601411A Concrete block construction
US1507420A Expansible-joint construction
US1435175A Expansible-joint construction
US1435174A Concrete block construction
US1293898A Concrete block construction.
US1258805A Concrete-block construction.
US1133313A Concrete pipe.
US1131646A Concrete and steel construction.
US764303A Concrete-arch construction.
US740039A Concrete-arch construction.
US712841A Process of building concrete and masonry structures.
US764302A Concrete-arch construction.
US709794A Concrete arch construction.
US696838A Concrete-arch construction.