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DERRICK MFG CORP

Overview
  • Total Patents
    95
About

DERRICK MFG CORP has a total of 95 patent applications. Its first patent ever was published in 1972. It filed its patents most often in United States, Canada and Australia. Its main competitors in its focus markets chemical engineering, machines and mechanical elements are TOMEK JIRI, POWER GLIDES SCREENS LTD and SIZETEC INC.

Patent filings per year

Chart showing DERRICK MFG CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Bakula John J 22
#2 Bakula John James 10
#3 Derrick William W 7
#4 Mooney James Arthur 7
#5 Derrick H William Jr 6
#6 Wojciechowski Keith F 6
#7 Derrick William Wettlaufer 5
#8 Derrick W 4
#9 Derrick Jr H William 4
#10 Mooney James A 4

Latest patents

Publication Filing date Title
WO2004074734A2 Vibratory motor supporting structure
WO03105988A1 Vibratory screening machine with suction and pressure and method for screening a slurry
US7025210B2 Method and apparatus for attenuating sound from vibratory screening machines
US6905452B1 Apparatus for centrifuging a slurry
US6580189B2 Vibratory motor having a self-contained continuous bearing lubrication system
US6161700A Vibratory screening screen and method of fabrication thereof
US6431366B2 Vibratory screening machine with stacked and staggered screening units
US6669027B1 Vibratory screening machine and vibratory screen and screen tensioning structure
AU6593998A Screen assembly for vibrating screening machine
US6000556A Screen assembly for vibratory screening machine
US5958236A Undulating screen for vibratory screening machine and method of fabrication thereof
US6220448B1 Screen assembly for vibratory screening machine
US5636749A Undulating screen for vibratory screening machine
US5673797A Screen assembly for vibratory screening machine and method of fabrication thereof
AU6084494A Undulating screen for vibratory screening machine and methodof fabrication thereof
US5417858A Screen assembly for vibrating screening machine
US5330057A Screen and screen cloth for vibratory machine and method of manufacture thereof
US5332101A Screen aligning, tensioning and sealing structure for vibratory screening machine
US5211291A Vibratory separator plate for flake-like members
US5221008A Vibratory screening machine and non-clogging wear-reducing screen assembly therefor