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PENNSYLVANIA CRUSHER CO

Overview
  • Total Patents
    100
About

PENNSYLVANIA CRUSHER CO has a total of 100 patent applications. Its first patent ever was published in 1908. It filed its patents most often in United States, United Kingdom and Canada. Its main competitors in its focus markets machines and chemical engineering are NORDBERG INC, KACZMAREK AL and ANI MINERAL PROCESSING INC.

Patent filings in countries

World map showing PENNSYLVANIA CRUSHER COs patent filings in countries
# Country Total Patents
#1 United States 83
#2 United Kingdom 7
#3 Canada 5
#4 France 3
#5 Germany 1
#6 Denmark 1

Patent filings per year

Chart showing PENNSYLVANIA CRUSHER COs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Borton George W 29
#2 Battey William A 13
#3 Hartshorn Stanley D 10
#4 Stine James E 7
#5 Keiper Edwin H 7
#6 Jamison Charles A 6
#7 Hiller Joseph L 5
#8 Gordon Buchanan 3
#9 Campbell Herbert F 3
#10 Alden Plimpton John 2

Latest patents

Publication Filing date Title
US2692088A Dust guard
GB692689A Improvements in and relating to swing hammer assembly
US2661160A Reversible hammermill with powerdriven impactor surfaces
US2692087A Wall plate structure for drum type breaker mills
US2644644A Two stage hammer mill
US2620989A Swing hammer assembly
US2666589A Screen bar
US2670140A Lifting shelf
US2575380A Crusher mill
US2575057A Endless breaker plate structure for crushers
US2600964A Apparatus for reduction of frangible material
US2545202A Lining structure for rotary crushers
US2514111A Reversible hammer mill with material-deflecting feed structure
US2516295A Process for preparing homogeneously partially polymerized particles of thermosetting material
US2464774A Single roll crusher with opposed toothed-apron feed
US2471068A Reversible hammer mill with power driven impactor surfaces
US2355050A Crushing machinery
US2411302A Impactor
US2321027A Coal breaker
US2297782A Crushing machine