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AMERICAN PIPE & CONSTR CO

Overview
  • Total Patents
    102
About

AMERICAN PIPE & CONSTR CO has a total of 102 patent applications. Its first patent ever was published in 1942. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets machines, mechanical elements and machine tools are YEON KYU SEOK, Tianjin zebao cement product co ltd and KLEINSTEUBER & CO.

Patent filings in countries

World map showing AMERICAN PIPE & CONSTR COs patent filings in countries
# Country Total Patents
#1 United States 72
#2 Canada 15
#3 United Kingdom 6
#4 Germany 5
#5 Denmark 2
#6 France 2

Patent filings per year

Chart showing AMERICAN PIPE & CONSTR COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Butler Adolf G 10
#2 Ohnstad Burl B 10
#3 Hausmann Delbert A 10
#4 Huck George E 8
#5 Szulc Alfred B 5
#6 Mcmahon Walter M 4
#7 Lander Arthur G 4
#8 Calvin Silliman John 4
#9 Matheny Francis M 4
#10 Law Gabriel H 3

Latest patents

Publication Filing date Title
US3623534A A method for starting a continuous casting
US3689305A Composition and method for sealing mortar-coated pipe
US3491988A Tundish cleaning and preheating apparatus
GB1136206A Centering and stabilizing means for a pipeline traversing machine
US3371770A Apparatus for moving pipe through a coating machine
GB1159244A Products and Process for making Products with Furan Resin
US3401988A Centering and stabilizing means for a pipeline traversing machine
US3432914A Method and apparatus for fabricating thin-walled large diameter steel pipe cylinders
US3400437A Bulkhead
US3383347A Epoxy emulsion coatings
US3280232A Centrifugal process for making products with furan resin
US3304591A Impact-actuated spring system for producing vibrations in a rotating form
US3315989A Service outlet assembly for reinforced concrete pipe
US3310074A Means for controlling manufacture of wire cages
US3282304A Wire uncoiling device
US3224798A Internal joint band for double bell concrete pipe
US3298697A Gasket for concrete conduits
US3301278A Products made with furan resin
US3275040A Outlet construction for concrete pipe and method of making same
US3258033A Anchorage for prestress wire in concrete pipe