Inventor · disambiguated record
Louis B. Gratzer
Also filed as: GRATZER LOUIS B
23 granted patents·2 pending applications·972 citations·filing 1980–2021
97Inventor score
Top patents by PatentIndex Score
25 records- 0198US5348253ABlended wingletGRATZER LOUIS B·Filed 1993·Granted Sep 20, 1994·208 cites·5 claims
- 0297US10252793B2Split blended wingletAVIATION PARTNERS INC·Filed 2018·Granted Apr 9, 2019·15 cites·20 claims
- 0397US4575030ALaminar flow control airfoilBOEING CO·Filed 1982·Granted Mar 11, 1986·125 cites·5 claims
- 0495US5102068ASpiroid-tipped wingGRATZER LOUIS B·Filed 1991·Granted Apr 7, 1992·118 cites·6 claims
- 0594US9302766B2Split blended wingletAVIAT PARTNERS INC·Filed 2014·Granted Apr 5, 2016·25 cites·16 claims
- 0693US10232934B2Wing tip with optimum loadingAVIATION PARTNERS INC·Filed 2016·Granted Mar 19, 2019·9 cites·12 claims
- 0793US10005546B2Split blended wingletAVIATION PARTNERS INC·Filed 2016·Granted Jun 26, 2018·8 cites·19 claims
- 0893US5096382ARing-shrouded propellerGRATZER LOUIS B·Filed 1990·Granted Mar 17, 1992·81 cites·3 claims
- 0992US10106247B2Split blended wingletAVIATION PARTNERS INC·Filed 2015·Granted Oct 23, 2018·14 cites·6 claims
- 1091US9381999B2Wing tip with optimum loadingGRATZER LOUIS B·Filed 2009·Granted Jul 5, 2016·22 cites·26 claims
- 1189US11511851B2Wing tip with optimum loadingAVIATION PARTNERS INC·Filed 2019·Granted Nov 29, 2022·4 cites·12 claims
- 1289US9580170B2Split spiroidAVIATION PARTNERS INC·Filed 2016·Granted Feb 28, 2017·9 cites·17 claims
- 1389US8944386B2Split blended wingletGRATZER LOUIS B·Filed 2012·Granted Feb 3, 2015·44 cites·29 claims
- 1487US10377472B2Wing tip with winglet and ventral finAVIATION PARTNERS INC·Filed 2018·Granted Aug 13, 2019·6 cites·8 claims
- 1587US4813631ALaminar flow control airfoilBOEING CO·Filed 1985·Granted Mar 21, 1989·70 cites·20 claims
- 1684US4449683AAerodynamically contoured, low drag wing engine and engine nacelle combinationBOEING CO·Filed 1980·Granted May 22, 1984·59 cites·14 claims
- 1784US4449681AAerodynamically contoured, low drag wing, engine and engine nacelle combinationBOEING CO·Filed 1980·Granted May 22, 1984·59 cites·15 claims
- 1881US9038963B2Split spiroidGRATZER LOUIS B·Filed 2012·Granted May 26, 2015·22 cites·23 claims
- 1977US4449680AAerodynamically contoured, low drag wing engine and engine nacelle combinationBOEING CO·Filed 1980·Granted May 22, 1984·46 cites·15 claims
- 2075US10589846B2Split blended wingletAVIATION PARTNERS INC·Filed 2019·Granted Mar 17, 2020·1 cites·19 claims
- 2172US2022010776A1Wind-powered cyclo-turbineGRATZER RICHARD L·Filed 2021·Application pending·0 cites
- 2269US10787246B2Wing tip with winglet and ventral finAVIATION PARTNERS INC·Filed 2019·Granted Sep 29, 2020·1 cites·18 claims
- 2364US9434470B2Split spiroidAVIATION PARTNERS INC·Filed 2015·Granted Sep 6, 2016·1 cites·17 claims
- 2461US4449682AAerodynamically contoured, low drag wing, engine and engine nacelle combinationBOEING CO·Filed 1980·Granted May 22, 1984·25 cites·14 claims
- 2558US2017260966A1Wind-powered cyclo-turbineGRATZER RICHARD L·Filed 2017·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →