WH

William J. Hay

BH Baker Hughes Holdings: 1 patents #1,949 of 3,522Top 60%
PL Perkins Engines Company Limited: 1 patents #78 of 209Top 40%
Overall (All Time): #1,800,706 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11598275 Method of controlling an internal combustion engine with a turbocharger Thomas M. McKay-Smith, Stuart Paul Smith 2023-03-07
7624798 Centralizer for expandable tubulars Mark W. Presslie 2009-12-01