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APT INC

Overview
  • Total Patents
    12
About

APT INC has a total of 12 patent applications. Its first patent ever was published in 1977. It filed its patents most often in United States, Canada and Mexico. Its main competitors in its focus markets machines, mechanical elements and chemical engineering are ESSEF CORP, BECK PETER and COVESS N V.

Patent filings in countries

World map showing APT INCs patent filings in countries

Patent filings per year

Chart showing APT INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Sluder Don W 7
#2 Welch William L 7
#3 Hill Wallace D 3
#4 Cory Richard L 2
#5 Calvert Seymour 2
#6 Hill Wallace P 2
#7 Wagner Christopher E 1
#8 Foss R Scot 1
#9 Cummins Ii Charles A 1
#10 Martinelli John K 1

Latest patents

Publication Filing date Title
US5632146A Load shaping compressed air system
US5419529A Reusable mold for forming premolded pieces and a modular contained machine foundation
US5240223A Reuseable mold for forming a hollow aggregate filled thermoset article
US5434594A Computer peripheral device for positioning a cursor on a computer display
WO9109249A1 Foundation and method preparing or reparing same
CA2071549A1 Foundation and method for preparing same
US4333827A Automatic engine shut down device and systems employing the same
US4163649A Collection of fine particles from a gas stream by moving the gas stream upward through a shallow bed of solid granules
US4169714A Removal of fine particles from a gas stream by solid particle addition in venturi contactor