RW

Ralph C. Wirsig

DC Dupont Canada: 8 patents #4 of 133Top 4%
Overall (All Time): #516,364 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
8915207 Watercraft stabilizing device 2014-12-23
8381673 Watercraft stabilizing device for boarding or exiting 2013-02-26
5497909 Reuseable pouch fitment John R. Thompson 1996-03-12
5429273 Apparatus for dispensing flowable materials from a pouch David C. King 1995-07-04
5330074 Apparatus for dispensing flowable materials from a pouch David C. King 1994-07-19
5325995 Piercing nozzle for pouch fitment Raymond P. Harrison 1994-07-05
5247779 Self voiding jaw for packaging machine James William Sadler, John R. Thompson 1993-09-28
5038550 Vertical form and fill machine improvements Arnold E. Perrett 1991-08-13
4648240 Continuous high speed spin-draw-texturing process for nylon yarn Rodney S. Hallsworth 1987-03-10
4226079 Heather yarn made by combining polyester and polyamide yarns Bruce D. Mountney 1980-10-07