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GEN PORTLAND INC

Overview
  • Total Patents
    25
About

GEN PORTLAND INC has a total of 25 patent applications. Its first patent ever was published in 1971. It filed its patents most often in United States, Canada and Germany. Its main competitors in its focus markets materials and metallurgy, basic materials chemistry and environmental technology are INST MASH I METALLURG DVO RAN, KNAUF SAAR GIPSWERKE G M B H G and TASHKENT NI I PI STROITEL.

Patent filings in countries

World map showing GEN PORTLAND INCs patent filings in countries

Patent filings per year

Chart showing GEN PORTLAND INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Klemm W A 4
#2 Luker J P 4
#3 Allen J H 4
#4 Luker John Paul 3
#5 Klemm Waldemar A 3
#6 Allen Joseph Henry 3
#7 Allen Joseph H 3
#8 Luker John P 3
#9 Tanner Theodore F 2
#10 Daugherty Kenneth Earl 2

Latest patents

Publication Filing date Title
US4548243A Apparatus for automatically placing bags
US4054464A Method for making cement using aragonite
US4002483A Expansive cement
US4047961A Cement composition
US4023955A Controlled release fertilizer
US3884710A Expansive cement
CA972770A Colored cement
GB1343826A Coloured cement