DH

David Haywood

IL Industrial Research Limited: 2 patents #20 of 97Top 25%
📍 Christchurch, NZ: #160 of 627 inventorsTop 30%
Overall (All Time): #2,025,127 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8984898 Cryogenic refrigerator system with pressure wave generator Alan James Caughley 2015-03-24
8171742 Pressure wave generator Alan James Caughley 2012-05-08