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SIVYER STEEL CORP

Overview
  • Total Patents
    29
About

SIVYER STEEL CORP has a total of 29 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 machines are YAOLING QIAN, XIANG ZHANG and WILLIAMS MILTON J.

Patent filings per year

Chart showing SIVYER STEEL CORPs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Machines

Focus technologies

# Technology
#1 Milling

Top inventors

# Name Total Patents
#1 Whitney Richard P 11
#2 Hellmich Uwe 6
#3 Stelk John C 6
#4 Whitney R P 1
#5 Richiyaado Pii Howainii 1
#6 Ceurvorst Kenneth 1
#7 Francis T M 1

Latest patents

Publication Filing date Title
DE4330962A1 Hammer mill
US5022593A Heavy duty spider assembly for a hammermill
US5072888A Symmetrical protective cap for a rotary hammer assembly for a hammermill
US5169077A Replaceable end member for a hammermill spider
US4915310A Replaceable end cap assembly for the spider arm of a hammermill
US4519551A Replaceable protective caps for spider arms of a reversible hammer mill
US4290545A Method of attaching a protective cap to a shredder component
CA1131188A Replaceable protective means for shredder components
US4222530A Replaceable protective means for end disc of shredder
US4061277A Shredder with grate cartridge
AU1437476A Two-piece hammer
US4000859A Two-piece hammer