Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
PB

Philip E. O. Buelow

DEDelavan: 23 patents #3 of 131Top 3%
CNCollins Engine Nozzles: 6 patents #7 of 50Top 15%
Rolls-Royce Plc: 3 patents #548 of 2,886Top 20%
RPRolls-Royce Power Engineering Plc: 1 patents #14 of 61Top 25%
West Des Moines, IA: #7 of 276 inventorsTop 3%
Iowa: #245 of 15,303 inventorsTop 2%
Overall (All Time): #105,708 of 4,157,543Top 3%
33 Patents All Time

Issued Patents All Time

Showing 26–33 of 33 patents

Patent #TitleCo-InventorsDate
9310073 Liquid swirler flow control Randall D. Siders, David H. Bretz, Neal A. Thomson 2016-04-12
9228741 Liquid fuel swirler David H. Bretz, Jason A. Ryon 2016-01-05
8448881 Fuel injector Kenneth J. Young, Yann Courbariaux, Michel Houde, Daniel Haggerty 2013-05-28
8156746 Lean direct injection atomizer for gas turbine engines Brandon P. Williams, David H. Bretz, Michael Spooner, Caroline Mohamed, Helen Gill 2012-04-17
8146837 Radially outward flowing air-blast fuel injection for gas turbine engine Neal A. Thomson, David H. Bretz 2012-04-03
8128007 Radially outward flowing air-blast fuel injector for gas turbine engine Neal A. Thomson, David H. Bretz 2012-03-06
7926744 Radially outward flowing air-blast fuel injector for gas turbine engine Neal A. Thomson, David H. Bretz 2011-04-19
7779636 Lean direct injection atomizer for gas turbine engines Brandon P. Williams, David H. Bretz, Michael Spooner, Caroline Mohamed, Helen Gill 2010-08-24