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ALFRED PETTER PEHRSON

Overview
  • Total Patents
    12
About

ALFRED PETTER PEHRSON has a total of 12 patent applications. Its first patent ever was published in 1919. It filed its patents most often in United Kingdom, Canada and United States. Its main competitors in its focus markets machine tools, thermal processes and engines, pumps and turbines are IHI METALTECH CO LTD, ANYANG HELI COLD ROLLING CO LTD and VOLG ZNAK POCHETA STALEPROVOLO.

Patent filings in countries

World map showing ALFRED PETTER PEHRSONs patent filings in countries
# Country Total Patents
#1 United Kingdom 9
#2 Canada 2
#3 United States 1

Patent filings per year

Chart showing ALFRED PETTER PEHRSONs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Helmer Pehrson Adam 1
#2 Pehrson Adam Helmer 1
#3 Prentice John 1

Latest patents

Publication Filing date Title
GB325169A Improvements in or relating to the manufacture of hollow metal rods, bars and the like
GB299237A Improvements in or relating to the manufacture of hollow metal rods, bars, and the like
GB291161A Improvements in the manufacture of hollow metal bars
GB291147A Improvements in or relating to the manufacture of hollow metal rods, bars and the like
GB268955A Improvements in or relating to the manufacture of hollow metal rods, bars, wires andthe like
GB261107A Improvements in or relating to the manufacture of hollow metal rods, bars and the like
US1572805A Rotary furnace
GB177872A Improvements in or relating to the manufacture of hollow metal rods, bars, wires and the like
GB147368A Improvements in or relating to the manufacture of hollow metal rods or bars
GB141856A Improvements in or relating to internal combustion engines
CA277591A Rotary furnace
CA320032A Heat-treating apparatus