Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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David C. Butt

Rolls-Royce Plc: 5 patents #316 of 2,886Top 15%
Derby, GB: #152 of 964 inventorsTop 20%
Overall (All Time): #1,011,773 of 4,157,543Top 25%
5 Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
8350398 Aeroengine starter/generator arrangement 2013-01-08
7698884 Power transmission arrangement Alan R Maguire, Martyn Richards, Geoffrey E. Kirk, David A. Edwards, Glenn A Knight 2010-04-20
7543439 Generator assembly Alan R Maguire 2009-06-09
7527476 Rotor assembly and annulus filler for gas turbine engine compressor Kenneth F. Udall 2009-05-05
7418821 Aircraft gas turbine engines 2008-09-02