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PENNSYLVANIA CRUSHER CORP

Overview
  • Total Patents
    71
About

PENNSYLVANIA CRUSHER CORP has a total of 71 patent applications. Its first patent ever was published in 1969. It filed its patents most often in United States, Canada and Germany. Its main competitors in its focus markets machines, mechanical elements and civil engineering are ZANDEN JOHANNES PETRUS ANDREAS, KACZMAREK AL and HOFFMANN ALBERT KG.

Patent filings in countries

World map showing PENNSYLVANIA CRUSHER CORPs patent filings in countries

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Graf Carl R 22
#2 Hahn William F 13
#3 Graf C 7
#4 Slikas Anthony W 6
#5 Sautter Daniel C 5
#6 Hart George H 4
#7 Janes Harry E 4
#8 Hahn W 3
#9 Graf C R 3
#10 Nigro Joseph P 3

Latest patents

Publication Filing date Title
MXPA02006744A Excavator teeth, apparatus and method.
CA2392643A1 Excavator teeth, apparatus and method
US6234414B1 Apparatus and method for sealing shafts
US5251826A Tumbling media mill and control system
US5062601A Mill screen apparatus
US5062575A Comminutor with impact, shear and screening sections
US5076507A Variable density grinding media
US4367644A Adjustable die and key assembly
US4343438A Ring hammer
CA1103225A High speed rotating crushing machinery and crushing methods
US4085897A Crusher-dryer and method of crushing
US4061279A High-speed rotating crushing machinery
DE2554853A1 Coal breaking and crushing appts. - has lifter shelves positioned at set angle of incline on drum
US4009834A Method of operating breaker/crusher
AU8603375A Breaker/crusher and method of operation
JPS5251158A Method of pulverizing massive material and apparatus therefor
ZA7505659B Breaker/crusher and method of operation
AU8433675A Improvements in highspeed rotating crushing machinery and crushing methods
CA1076087A High-speed rotating crushing machinery and crushing methods
GB1502166A Material reduction apparatus