JH

John Hoptroff

Rolls-Royce Plc: 3 patents #548 of 2,886Top 20%
Overall (All Time): #1,578,690 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
7625171 Cooling system for a gas turbine engine Alan R Maguire 2009-12-01
7287961 Retaining arrangement Peter Broadhead 2007-10-30
5888049 Gas turbine engine rotor disc with cooling fluid passage Peter Broadhead, Peter Avery 1999-03-30