Learn more

LUPKE STEFAN A

Overview
  • Total Patents
    30
About

LUPKE STEFAN A has a total of 30 patent applications. Its first patent ever was published in 1990. It filed its patents most often in Canada, Australia and Norway. Its main competitors in its focus markets machines, mechanical elements and machine tools are RAMIX BV, ROTHENBERGER ROHRSANIERUNG GMB and HAWERKAMP MANFRED.

Patent filings per year

Chart showing LUPKE STEFAN As patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Lupke Stefan A 29
#2 Lupke Manfred A A 23
#3 Stefan A Lupke 1

Latest patents

Publication Filing date Title
CA2588058A1 Alignable cooling plug for extruder
CA2567695A1 Cooling plug with improved vacuum channels
CA2508062A1 Pipe forming apparatus for double walled pipe
CA2464245A1 Method of forming corrugated pipe with a pipe spigot seal seat
CA2419500A1 Method and apparatus for analyzing separation between spaced surfaces using magnetic field intensity measurements
CA2412066A1 Pipe molding apparatus with mold tunnel air turbulence
CA2411878A1 Method of producing multiple pipe pieces with spigots from a single length of plastic pipe
CA2411881A1 Molding apparatus with mold blocks having face adjustment
AU2002328740A1 Molding die for ribbed pipe
AU2002328741A1 Pipe mold apparatus with contact and contactless air cooling of plastic in a mold tunnel
CA2403223A1 Molding apparatus with external mold block cooling
CA2307798A1 Pipe mold with compensation for pipe shrinkage
CA2307785A1 Pipe mold with multiple sources of plastic supply
CA2295371A1 Metallic pipe and method of making same
CA2291308A1 Pipe with composite wall construction and method of making same
CA2289386A1 Tube cutting device
CA2227161A1 Extrusion mandrel spider
CA2210962A1 Method and apparatus for cooling hollow molded product
CA2032729A1 Coupling for ribbed pipe