Inventor · disambiguated record
William P. Van Vooren
Also filed as: VAN VOOREN WILLIAM P
7 granted patents·1 pending application·61 citations·filing 2000–2016
82Inventor score
Top patents by PatentIndex Score
8 records- 0190US6688976B1Systems and methods wherein a lottery number combination is associated with a limited number of occurrencesWALKER DIGITAL LLC·Filed 2000·Granted Feb 10, 2004·52 cites·42 claims
- 0284US10347081B2Method and apparatus for conducting focus groups using networked gaming devicesIGT RENO NEV·Filed 2016·Granted Jul 9, 2019·5 cites·16 claims
- 0376US7682240B2Systems and methods wherein a lottery number combination is associated with a limited number of occurrencesWALKER DIGITAL LLC·Filed 2006·Granted Mar 23, 2010·4 cites·66 claims
- 0461US7722455B2Systems and methods wherein a lottery number combination is associated with a limited number of occurrencesWALKER DIGITAL LLC·Filed 2006·Granted May 25, 2010·0 cites·43 claims
- 0561US7690980B2Systems and methods wherein a lottery number combination is associated with a limited number of occurrencesWALKER DIGITAL LLC·Filed 2006·Granted Apr 6, 2010·0 cites·12 claims
- 0654US8579692B2Systems and methods wherein a lottery number combination is associated with a limited number of occurrencesTULLEY STEPHEN C·Filed 2010·Granted Nov 12, 2013·0 cites·20 claims
- 0752US7704139B2Systems and methods wherein a lottery number combination is associated with a limited number of occurrencesWALKER DIGITAL LLC·Filed 2003·Granted Apr 27, 2010·0 cites·24 claims
- 0850US2013203485A1Method and apparatus for conducting focus groups using networked gaming devicesIGT RENO NEV·Filed 2013·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when William P. Van Vooren 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 →