DL

David M. Lechner

HA Harsco: 4 patents #10 of 125Top 8%
Overall (All Time): #1,263,507 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6957661 Valve with pressurization rate reduction device Jeffre Allen Borton, Dennis H. Sattelberg 2005-10-25
RE35602 Pressure-loaded cylinder valve insert 1997-09-09
5330155 Pressure-loaded cylinder valve insert 1994-07-19
4911194 Thermally-sensitive coupling device 1990-03-27