Learn more

SIGMA TOOL & MACHINE A PARTNER

Overview
  • Total Patents
    17
About

SIGMA TOOL & MACHINE A PARTNER has a total of 17 patent applications. Its first patent ever was published in 1999. It filed its patents most often in Canada, EPO (European Patent Office) and United States. Its main competitors in its focus markets machine tools, machines and mechanical elements are ALBERT J WEATHERHEAD JR, MICRO PRECISION OPERATIONS INC and HOLLIGER PALETTEN LOGISTIK AG.

Patent filings per year

Chart showing SIGMA TOOL & MACHINE A PARTNERs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Liu Sung Hsiang 12
#2 Bromley Keith G 7
#3 Leistner Walter H 4
#4 Leistner Herbert E 3
#5 Leko Ivan J 1
#6 Leistner Walter H Liu Sung H 1
#7 Sung Hsiang Liu 1
#8 Stagnoli Carlo 1
#9 Green Paul D 1
#10 Leistner Martin 1

Latest patents

Publication Filing date Title
US2007170222A1 Pneumatic hand tool for inserting t-nuts
CA2506589A1 Method of riveting a headed fastener
CA2298309A1 Clip crimping tool
CA2288394A1 Tee-nut with globe shaped sleeve
CA2273711A1 Fastener feed mechanism and perforated fastener strip