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HARROP CERAMIC SERVICE COMPANY

Overview
  • Total Patents
    20
About

HARROP CERAMIC SERVICE COMPANY has a total of 20 patent applications. Its first patent ever was published in 1927. It filed its patents most often in United States, United Kingdom and Canada. Its main competitors in its focus markets thermal processes, chemical engineering and packaging and shipping are CERITHERM, JOHAN SIGISMUND FASTING and HARRY STEHMANN.

Patent filings in countries

World map showing HARROP CERAMIC SERVICE COMPANYs patent filings in countries
# Country Total Patents
#1 United States 8
#2 United Kingdom 6
#3 Canada 4
#4 Germany 1
#5 France 1

Patent filings per year

Chart showing HARROP CERAMIC SERVICE COMPANYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hartford Frank M 9
#2 Schoenlaub Robert A 2
#3 Cramer William E 1
#4 Brush George D 1
#5 Sylvester George R 1

Latest patents

Publication Filing date Title
GB1138519A Furnaces
GB404328A Improvements in tunnel kilns
US1965832A Tunnel kiln
GB359428A Improvements in method and apparatus for the treatment of ceramic and other articles in tunnel kilns or furnaces
GB363305A Improvements relating to the heat treatment of ceramic and other ware in tunnel kilns or furnaces
US1874516A Apparatus for treating ceramic ware
US1799980A Apparatus for treating ceramic ware
GB348057A Improvement in wall structures
GB352381A Improvements in method and apparatus for drying clay ware or kindred products
US1799979A Wall structure
US1826840A Apparatus for collecting and conveying materials
US1773675A Method and apparatus for drying or roasting clay, carbon, or other products
US1793086A Method and apparatus for drying clay ware or kindred products
US1709063A Method and apparatus for treating clayware
CA303840A Apparatus for drying clay ware
CA313067A Apparatus for treating ceramic ware
CA313066A Apparatus for treating ceramic ware
CA812710A Furnace apparatus