Inventor
WIRSIG RALPH C
CA10 patents
⚠️ This page may combine multiple inventors who share the name “WIRSIG RALPH C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DU PONT CANADA
8 patentsUS5429273AJul 4, 1995
Apparatus for dispensing flowable materials from a pouch
DU PONT CANADA66 citations95
US5497909AMar 12, 1996
Reuseable pouch fitment
DU PONT CANADA29 citations92
US5330074AJul 19, 1994
Apparatus for dispensing flowable materials from a pouch
DU PONT CANADA31 citations92
US5247779ASep 28, 1993
Self voiding jaw for packaging machine
DU PONT CANADA55 citations90
US5038550AAug 13, 1991
Vertical form and fill machine improvements
DU PONT CANADA34 citations90
US5325995AJul 5, 1994
Piercing nozzle for pouch fitment
DU PONT CANADA54 citations86
US4648240AMar 10, 1987
Continuous high speed spin-draw-texturing process for nylon yarn
DU PONT CANADA19 citations75
US4226079AOct 7, 1980
Heather yarn made by combining polyester and polyamide yarns
DU PONT CANADA23 citations75