DW

David J. Welburn

IC ICI: 2 patents #677 of 2,189Top 35%
CL Cxa Ltd./Cxa Ltee: 1 patents #5 of 13Top 40%
OP Orica Explosives Technology Pty: 1 patents #37 of 87Top 45%
📍 Lachute, CA: #6 of 36 inventorsTop 20%
Overall (All Time): #1,044,134 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
RE37689 Low energy fuse and method of manufacture Ronald F. Stewart, David M. Welsh, Robert C. Greenhorn 2002-05-07
5509355 Low energy fuse and method of manufacture Ronald F. Stewart, David M. Welsh, Robert C. Greenhorn 1996-04-23
5317974 Low energy fuse and method and manufacture Ronald F. Stewart, David M. Welsh, Robert C. Greenhorn 1994-06-07
4699059 Explosive shock tube having lateral initiation properties George Gary Kelly 1987-10-13
4493261 Reinforced explosive shock tube James R. Simon 1985-01-15