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HPM CORP

Overview
  • Total Patents
    52
About

HPM CORP has a total of 52 patent applications. Its first patent ever was published in 1974. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets machines, materials and metallurgy and control are BUILD A MOLD LTD, ZHONGSHAN HUAZHI MOULD & PLASTIC TECH LTD and LESTER ENGINEERING CO.

Patent filings per year

Chart showing HPM CORPs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Kruder George A 13
#2 Bishop Thomas G 6
#3 Takashima Stephen T 5
#4 Calland William N 5
#5 Nunn Robert E 5
#6 Medici Jr John C 3
#7 Cole James C 3
#8 Stillhard Bruno J 3
#9 Staiger Donald W 3
#10 Cronenwett George F 3

Latest patents

Publication Filing date Title
US6132075A Multichannel wave screw with a slush channel barrier section
US6056430A Plasticating apparatus having a multichannel wave screw with a cross channel solids transition
US6234659B1 Surge suppressor for vented injection molding machine screw
AU6185798A Thixotropic molding machine and screw therefor
US5565224A Electric injection molding machine
US5219590A Triple channel wave screw
US5035509A Multi-channel extrusion screw with a zig-zag undercut barrier
US4997358A Apparatus for reconfiguring finishing rolls in a plastic sheet fabrication sheetline
US4850217A Adaptive process control for injection molding
US4816197A Adaptive process control for injection molding
US4925313A Mixing screw for extrusion and injection molding
US4886106A Die cast machine with a turret
EP0274183A2 Die casting apparatus and method
US4628983A Method and apparatus for making hollow sheel cores with controlled gas flow
US4421467A Injection molding machine diagnostic system
US4363768A Method of injection molding employing multichannel wave screw
US4356140A Extrusion method with short cycle multichannel wave screw
US4362205A Rotor die casting method
CA1147918A Combination thermoplastic and glass loaded thermosetting injection molding machine and method for operating same
US4306848A Injection molding apparatus having low shear screw