Individual holder
GRATZER LOUIS B
US·6 granted patents·495 citations·filing 1990–2012
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
6 records- 0198US5348253ABlended wingletGRATZER LOUIS B·Filed 1993·Granted Sep 20, 1994·208 cites·5 claims
- 0295US5102068ASpiroid-tipped wingGRATZER LOUIS B·Filed 1991·Granted Apr 7, 1992·118 cites·6 claims
- 0393US5096382ARing-shrouded propellerGRATZER LOUIS B·Filed 1990·Granted Mar 17, 1992·81 cites·3 claims
- 0491US9381999B2Wing tip with optimum loadingGRATZER LOUIS B·Filed 2009·Granted Jul 5, 2016·22 cites·26 claims
- 0589US8944386B2Split blended wingletGRATZER LOUIS B·Filed 2012·Granted Feb 3, 2015·44 cites·29 claims
- 0681US9038963B2Split spiroidGRATZER LOUIS B·Filed 2012·Granted May 26, 2015·22 cites·23 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →