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GEM CITY ENG CO

Overview
  • Total Patents
    14
About

GEM CITY ENG CO has a total of 14 patent applications. Its first patent ever was published in 1971. It filed its patents most often in United States, Switzerland and United Kingdom. Its main competitors in its focus markets machine tools, machines and transport are STRIPPIT DI ACRO HOUDAILLE INC, WILSON TOOL CO and UNIPUNCH PRODUCTS.

Patent filings in countries

World map showing GEM CITY ENG COs patent filings in countries

Patent filings per year

Chart showing GEM CITY ENG COs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Davis Robert W 4
#2 Cook Sen Robert G 1
#3 Roobaato Daburiyu Deebisu 1
#4 Cook R 1
#5 Waizmann George H 1
#6 Laughman Kerry L 1
#7 Waizmann G 1
#8 Harney Thomas H 1
#9 Suitts Terry R 1
#10 Davis Daniel J 1

Latest patents

Publication Filing date Title
US6532787B2 Process of manufacturing a core metal insert
US5783312A Expanded metal strip for reinforcing a resilient product
US5199142A Production of expanded metal strip for reinforcing a resilient product
GB1409269A Die apparatus for fine blank stamping
US3752028A Die apparatus for fine blank stamping