Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
JL

John M. Lehmann

MTMcdermott Technology: 2 patents #22 of 100Top 25%
BTBwx Technologies: 1 patents #4 of 25Top 20%
UEUS Dept of Energy: 1 patents #1,355 of 5,099Top 30%
Virginia: #9,471 of 34,511 inventorsTop 30%
Overall (All Time): #1,619,479 of 4,157,543Top 40%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6495790 Plasma arc keyhole welding stability and quality through titanium nitride additions John M. Sanders, William A. McInteer 2002-12-17
6037561 Method and device for reducing overpenetration at the start of plasma arc welds John M. Sanders, Patrick M. Ryan 2000-03-14
5773786 Method and device for reducing overpenetration at the start of plasma arc welds John M. Sanders, Patrick M. Ryan 1998-06-30