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PRELOAD CO INC

Overview
  • Total Patents
    40
About

PRELOAD CO INC has a total of 40 patent applications. Its first patent ever was published in 1950. It filed its patents most often in United States, United Kingdom and Spain. Its main competitors in its focus markets civil engineering, machines and packaging and shipping are PITTSBURGH DES MOINES CORP, HORTON GEORGE T and PITTSBURGH DES MOINES COMPANY.

Patent filings in countries

World map showing PRELOAD CO INCs patent filings in countries
# Country Total Patents
#1 United States 15
#2 United Kingdom 12
#3 Spain 5
#4 Australia 3
#5 Canada 2
#6 France 1
#7 Japan 1
#8 South Africa 1

Patent filings per year

Chart showing PRELOAD CO INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hornstein Jack 6
#2 Bush Bill R 6
#3 Curzon Dobell 6
#4 Closner John J 3
#5 Hornstein J 2
#6 Bush B 2
#7 Biru Aaru Butsushiyu 1
#8 Dobell Curzon 1
#9 Chiverton Thomas J 1
#10 Jack Crom 1

Latest patents

Publication Filing date Title
AU8831482A Prestressed/post-tensioned concrete tank and precast panels therefor
CA1098332A Prestressed concrete tank
AU3888278A Prestressed concrete tank
CA1095736A Prestressed concrete tank
ES464405A3 A pretensed concrete device. (Machine-translation by Google Translate, not legally binding)
AU2952377A Interconnection of precast panels of water tank
ZA7704958B Overlap closure system for precast prestressed water tanks
US4043089A Overlap closure system for precast prestressed water tanks
US3853277A Scaffold and winding apparatus
US3638431A Storage tank
US3633328A Pressurized storage tank
US3488972A Cryogenic storage structure
US3383004A Plastic storage tank
ES247057A1 Improvements introduced in the construction of concrete structures to contain liquids (Machine-translation by Google Translate, not legally binding)
ES247056A1 Method and apparatus for the circular trunking of tanks or similar etructures (Machine-translation by Google Translate, not legally binding)
ES245338A3 Improvements in the construction of forged bases of pretensed and/or assembled concrete parts (Machine-translation by Google Translate, not legally binding)
GB815942A Tank construction
US2833186A Reinforced pavements
GB758624A Prestressed pavements
US2887762A Method of making prestressed structural member