Assignee
SEIFORD SR DONALD S
US·6 granted patents·1 pending application·73 citations·filing 1992–2017
Top patents by PatentIndex Score
7 records- 0190US8162253B2Convertible vehicle for road, air, and water usageSEIFORD SR DONALD S·Filed 2009·Granted Apr 24, 2012·31 cites·20 claims
- 0283US9695585B1Portable domed storm shelterSEIFORD SR DONALD S·Filed 2016·Granted Jul 4, 2017·6 cites·20 claims
- 0381US7090553B1Paddle wheel propulsion system and improved paddle used therewithSEIFORD SR DONALD S·Filed 2005·Granted Aug 15, 2006·14 cites·18 claims
- 0463US6976444B1Marine vessel propulsion and tubular rudder systemSEIFORD SR DONALD S·Filed 2004·Granted Dec 20, 2005·9 cites·21 claims
- 0556US7284495B2Shaftless radial vane rotary device and a marine propulsion system using the deviceSEIFORD SR DONALD S·Filed 2006·Granted Oct 23, 2007·3 cites·18 claims
- 0647US5213528APaddle wheel for a shipSEIFORD SR DONALD S·Filed 1992·Granted May 25, 1993·10 cites·24 claims
- 0741US2017254105A1Portable domed storm shelterSEIFORD SR DONALD S·Filed 2017·Application pending·0 cites
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