DH

Derek Hird

DL Dywidag-Systems International Pty Limited: 2 patents #2 of 7Top 30%
📍 Newcastle, AU: #1 of 2 inventorsTop 50%
Overall (All Time): #1,397,555 of 4,157,543Top 35%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11724551 Tires with segmented tire bodies, embedded mounting elements and partially embedded cleats Jose M. Vechina, Eric Bittner 2023-08-15
11236613 Encapsulation system and method of installing a rock bolt David W. Evans 2022-02-01
10066483 Friction bolt assembly David W. Evans 2018-09-04