Inventor · disambiguated record
Ralph C. Wirsig
Also filed as: WIRSIG RALPH · WIRSIG RALPH C · WIRSIG RALPH CARL
12 granted patents·360 citations·filing 1974–2013
93Inventor score
Top patents by PatentIndex Score
12 records- 0186US8915207B2Watercraft stabilizing deviceWIRSIG RALPH C·Filed 2013·Granted Dec 23, 2014·11 cites·5 claims
- 0285US5429273AApparatus for dispensing flowable materials from a pouchDU PONT CANADA·Filed 1994·Granted Jul 4, 1995·66 cites·3 claims
- 0382US8381673B2Watercraft stabilizing device for boarding or exitingWIRSIG RALPH C·Filed 2011·Granted Feb 26, 2013·8 cites·10 claims
- 0482US5247779ASelf voiding jaw for packaging machineDU PONT CANADA·Filed 1990·Granted Sep 28, 1993·55 cites·2 claims
- 0582US4226079AHeather yarn made by combining polyester and polyamide yarnsDU PONT CANADA·Filed 1979·Granted Oct 7, 1980·23 cites·8 claims
- 0680US5325995APiercing nozzle for pouch fitmentDU PONT CANADA·Filed 1993·Granted Jul 5, 1994·54 cites·4 claims
- 0775US5038550AVertical form and fill machine improvementsDU PONT CANADA·Filed 1990·Granted Aug 13, 1991·34 cites·38 claims
- 0873US3991548AComposite yarnsDU PONT CANADA·Filed 1974·Granted Nov 16, 1976·18 cites·10 claims
- 0969US4648240AContinuous high speed spin-draw-texturing process for nylon yarnDU PONT CANADA·Filed 1985·Granted Mar 10, 1987·19 cites·17 claims
- 1061US5497909AReuseable pouch fitmentDU PONT CANADA·Filed 1992·Granted Mar 12, 1996·29 cites·12 claims
- 1161US5330074AApparatus for dispensing flowable materials from a pouchDU PONT CANADA·Filed 1991·Granted Jul 19, 1994·31 cites·4 claims
- 1243US3970325AInfant creeperLAWRENCE PESKA ASS INC·Filed 1975·Granted Jul 20, 1976·12 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when Ralph C. Wirsig files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →