MS

Matthew Floyd Shofner

SA Sandvik Ab: 2 patents #3 of 79Top 4%
📍 Richmond, TX: #6 of 40 inventorsTop 15%
🗺 Texas: #1,045 of 8,590 inventorsTop 15%
Overall (2002): #51,219 of 266,432Top 20%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6499544 Percussive down-the-hole hammer for rock drilling, and a one-way valve used therein — 2002-12-31
6454026 Percussive down-the-hole hammer for rock drilling, a top sub used therein and a method for adjusting air pressure — 2002-09-24