DS

David T. Szczupak

HL Holset Engineering Company, Limited: 3 patents #8 of 53Top 20%
📍 Corbridge, GB: #1 of 8 inventorsTop 15%
Overall (All Time): #1,304,899 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4779423 Variable area turbocharger turbine and control system therefor 1988-10-25
4582466 Variable inlet area turbine 1986-04-15
4557665 Variable inlet area turbine 1985-12-10
4499732 Turbocharger having a variable inlet area turbine Brian E. Walsham, Desmond J. Hooley, David Flaxington, Peter McKean, John D. Wescott 1985-02-19