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SIGMA TOOL & MACHINE

Overview
  • Total Patents
    22
About

SIGMA TOOL & MACHINE has a total of 22 patent applications. Its first patent ever was published in 1981. It filed its patents most often in United States, Canada and EPO (European Patent Office). Its main competitors in its focus markets mechanical elements, machine tools and machines are PEM MAN INC, HALLOCK ROBERT L and OFFENBROICH ADRIAN GOTTFRIED.

Patent filings in countries

World map showing SIGMA TOOL & MACHINEs patent filings in countries
# Country Total Patents
#1 United States 18
#2 Canada 3
#3 EPO (European Patent Office) 1

Patent filings per year

Chart showing SIGMA TOOL & MACHINEs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Leistner Herbert E 7
#2 Leistner Walter H 6
#3 Leistner Volkmar W 5
#4 Stagnoli Carlo 3
#5 Bromley Keith G 3
#6 Leistner Martin 2
#7 Figge Siegfried 1
#8 Figge Siegfried F 1
#9 Leistner Martin K 1
#10 Green Paul D 1

Latest patents

Publication Filing date Title
US2007114259A1 Multi-blow pneumatic hand tool for inserting t-nuts
US6305888B1 T-nut with indented leading and trailing edge flanges
US6183181B1 Sealed end tee-nut
US6129493A Tee-nut with globular shaped sleeve
US5918738A Tee-nut strip with edge membranes
US5863164A Tee-nut with radiussed barrel end
US5909993A Chipped nail welded wire nailing strip and method
US5762190A Tee-nut holder strip
US5618144A Tee-nut with enlarged barrel end
US5722131A Clip for furniture springs, and method of manufacture
US5606794A Variable impact tee-nut insertion machine
US5501558A Anti-friction Tee-nut with deflected edges
US5560099A Tee-nut setting and forming machine
EP0580907A1 Tee-nut fastener strip and fastener feed means for fastener setting apparatus
CA2015219A1 Fastener setting apparatus
US4711980A Nail collator and welder
US4508478A Tee nut fastener member
US4472956A Apparatus for feeding elongated objects
CA1175201A Magazine assembly for coil nails