Learn more

HARWIL CORP

Overview
  • Total Patents
    15
About

HARWIL CORP has a total of 15 patent applications. Its first patent ever was published in 1990. It filed its patents most often in United States, EPO (European Patent Office) and Hong Kong. Its main competitors in its focus markets machines, textiles and paper and electrical machinery and energy are HALLMAN HAROLD E, WOOD JAMES R and VERSTEEGE ARNOLDUS JOSEF.

Patent filings in countries

World map showing HARWIL CORPs patent filings in countries
# Country Total Patents
#1 United States 11
#2 EPO (European Patent Office) 1
#3 Hong Kong 1
#4 Indonesia 1
#5 Taiwan 1

Patent filings per year

Chart showing HARWIL CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hutchinson Harold D 14
#2 Harwil Corporation 1

Latest patents

Publication Filing date Title
US6647204B1 Portable steam generating system
US6393212B1 Portable steam generating system
US6450088B1 Heat sealing apparatus for plastic bags
US6119590A Heat sealing apparatus for plastic bags
US5932814A Photo detector bending beam flow switch and flow meter
US5939688A Fluid responsive switch pivot arm seal
US5945608A Hall effect fluid flow switch and flow meter
US5826503A Heat sealing apparatus for plastic bags
US5159305A Magnet responsive variable differential switching apparatus
US5021619A Flow responsive switch apparatus