DL

David Arthur Lehr

UT Ucar Carbon Technology: 3 patents #12 of 62Top 20%
GH Graftech International Holdings: 1 patents #69 of 101Top 70%
📍 Medina, OH: #160 of 501 inventorsTop 35%
🗺 Ohio: #18,857 of 73,341 inventorsTop 30%
Overall (All Time): #1,241,743 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
7660337 Lifting apparatus and method of lifting carbon based electrodes Henry Darral Teeples, John Douglas Phillips, Thomas Davis Schiller, Terrence Wells 2010-02-09
5631919 Apparatus for lengthwise graphitization (LWG) of carbon electrode bodies Allan Intermill, Francis E. Wise 1997-05-20
5561685 Modular spray cooled side-wall for electric arc furnaces Gordon R. Roberts, Frank Henry Miner, Jr., William H. Burwell, Mark Thomas Arthur 1996-10-01
5330161 Spray cooled hood system for handling hot gases from a metallurgical vessel utilizing pneumatic processing of molten metal Gordon R. Roberts, Mark Thomas Arthur 1994-07-19