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ISTHMIAN METALS INC

Overview
  • Total Patents
    28
About

ISTHMIAN METALS INC has a total of 28 patent applications. Its first patent ever was published in 1941. It filed its patents most often in United Kingdom, United States and Canada. Its main competitors in its focus markets materials and metallurgy, machines and mechanical elements are ALLOYS RES & MFG CORP, HARDY METALLURG COMPANY and MIRCHANDANI PRAKASH K.

Patent filings in countries

World map showing ISTHMIAN METALS INCs patent filings in countries
# Country Total Patents
#1 United Kingdom 12
#2 United States 11
#3 Canada 2
#4 Switzerland 2
#5 France 1

Patent filings per year

Chart showing ISTHMIAN METALS INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Rice Richard E 4
#2 Whitney Lyman F 4
#3 Matthew William P 2
#4 Metals Inc Isthmian 2
#5 Matthew William Pomeroy 2
#6 Whitney Lyman Fiske 2
#7 Warren Webb George 2
#8 Webb George W 1
#9 Sinnott William J 1
#10 Fiske Whitney Lyman 1

Latest patents

Publication Filing date Title
GB724557A Crankshaft and method of making the same
GB724556A Method of fabricating machine parts such as crankshafts and other assemblies built up of ferrous components
US2741932A Crankshaft and method of making the same
GB712132A Improvements relating to composite metal structures
GB712127A Fabricated crankshaft or other composite structure and method of making the same
US2741828A Composite metal structure
GB685264A Improvements relating to powder metallurgy
GB676345A Method of making metal articles by powder metallurgy
GB683085A Method of fabricating machine parts such as crankshafts and other assemblies built up of ferrous components
GB665794A Powder metallurgy process for producing steel parts
US2554723A Lubricating powder pressed compact
GB659665A Method of making metal bodies from metal powder
GB636921A Method of making metal bodies from metal powder
US2495823A Pressing of articles from metal powder
GB618009A Improvements in the heat treatment of duplex iron and steel bodies
GB618293A Making products of powdered iron or iron alloys
US2491238A Heat-treating iron steel body
US2489838A Powder metallurgy process for producing steel parts
US2489839A Process for carburizing compacted iron articles
US2540457A Method of making metal articles and products