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RUTH JR JOSEPH P

Overview
  • Total Patents
    19
About

RUTH JR JOSEPH P has a total of 19 patent applications. Its first patent ever was published in 1917. It filed its patents most often in United States. Its main competitors in its focus markets chemical engineering, machines and environmental technology are ERZ U KOHLE FLOTATION G M B H, CESAG CENTRAL EUROPAEISCHE SCH and KOMPLEKSNYJ NI PK I OBOGASHCHE.

Patent filings in countries

World map showing RUTH JR JOSEPH Ps patent filings in countries
# Country Total Patents
#1 United States 19

Patent filings per year

Chart showing RUTH JR JOSEPH Ps patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ruth Jr Joseph P 19

Latest patents

Publication Filing date Title
US2006875A Method of cyanide treatment of ores
US2000418A Ore conditioning device
US1886979A Flotation method
US1833537A Reagent feeder
US1755273A Device for conditioning ores
US1760916A Flotation apparatus
US1807876A Flotation apparatus
US1867926A Drain device
US1746682A Flotation apparatus
US1562792A Discharge for grinding mills
US1562791A Discharge head for grinding mills
US1453408A Grinding mill
US1491277A Process for aerating and activating sewerage
US1537265A Pneumatic flotation apparatus
US1356832A Process for mineral flotation
US1388377A Manifold-heater
US1463405A Flotation apparatus
US1445042A Flotation apparatus
US1365278A Gas washing and humidifying process