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WEST CHESTER CHEM CO

Overview
  • Total Patents
    23
About

WEST CHESTER CHEM CO has a total of 23 patent applications. Its first patent ever was published in 1961. It filed its patents most often in United States, France and Canada. Its main competitors in its focus markets mechanical elements, macromolecular chemistry and polymers and machines are U M GEWERBEIMMOBILIEN GMBH & CO KG, FELBER WINFRIED and MIDWESCO ENTERPRISE INC.

Patent filings in countries

World map showing WEST CHESTER CHEM COs patent filings in countries
# Country Total Patents
#1 United States 8
#2 France 4
#3 Canada 3
#4 United Kingdom 3
#5 Germany 2
#6 Netherlands 2
#7 Denmark 1

Patent filings per year

Chart showing WEST CHESTER CHEM COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Lee Roach Robert 5
#2 Roach Robert Lee 2
#3 Hilbush Jr Edward O 2
#4 Roach Robert L 2
#5 Carpmael Maurice Herbert 1
#6 Williams William Lloyd 1
#7 Copeland Lynn L 1
#8 Buczala George S 1
#9 Rosengarten Walter E Jr 1
#10 Hilbush Edward Oscar 1

Latest patents

Publication Filing date Title
NL7416172A Sealing leaks in underground pipeline - by sandblasting and injecting sealant in collar around pipe at greater velocity than leak rate
US3896897A Exhaust muffler
US3913889A Snow fence
GB1166335A Improvements in Method and Means for External Sealing of Pipe Joints.
US3501175A Sealed vessels
US3507818A Sealants for fluid containers
FR1464400A Method and devices for sealing underground pipes
GB1130344A Improvements in expendable mold and method for sealing joints in fluid mains
FR1458296A New sealing composition
GB1087249A Improvements in or relating to sealing composition
US3261381A Two-part container for adhesives and the like
US3287148A Method for sealing gas mains
US3272894A Method of sealing vessels and joints thereof
US3238973A Sealing underground conduits
CA780179A Sealing underground conduits
CA845751A Sealing composition
CA732507A Expandable mold and method for sealing joints in gas mains