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PACIFIC R & H CHEMICAL CORP

Overview
  • Total Patents
    13
About

PACIFIC R & H CHEMICAL CORP has a total of 13 patent applications. Its first patent ever was published in 1918. It filed its patents most often in United States. Its main competitors in its focus markets materials and metallurgy, agriculture and machines are CALIFORNIA CYANIDE COMPANY INC, LIDHOLM JOHAN HJALMAR and TCHERNIAC JOSEPH.

Patent filings in countries

World map showing PACIFIC R & H CHEMICAL CORPs patent filings in countries
# Country Total Patents
#1 United States 13

Patent filings per year

Chart showing PACIFIC R & H CHEMICAL CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Mark Walker 4
#2 Brown Mortimer J 4
#3 Jay Brown Mortimer 3
#4 Neuls Joseph D 1
#5 Cuyler Edward H 1
#6 Patteson Mark B 1

Latest patents

Publication Filing date Title
US1856606A Stabilization of liquid hydrocyanic acid
US1571982A Purification of hydrocyanic acid
US1591900A Stabilization of liquid hydrocyanic acid
US1569171A Apparatus for producing and recovering reaction gases
US1591899A Stabilization of liquid hydrocyanic acid
US1495771A Measuring and spraying apparatus for a volatile fumigant
US1702761A Process for producing hydrocyanic acid
US1495774A Valve
US1495772A Pump-measuring device
US1426831A Apparatus for measuring and gasifying liquids
US1444300A Process for purifying liquid hydrocyanic acid
US1336822A Apparatus for gasifying liquids
US1381586A Insecticide and fumigation process