CG

Charles N. Grichar

VI Varco I/P: 4 patents #3 of 19Top 20%
TI Tuboscope I/P: 1 patents #5 of 18Top 30%
📍 Houston, TX: #25 of 1,272 inventorsTop 2%
🗺 Texas: #225 of 8,590 inventorsTop 3%
Overall (2002): #10,222 of 266,432Top 4%
5
Patents 2002

Issued Patents 2002

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6454099 Vibrator separator screens Thomas C. Adams, David Schulte, Kenneth W. Seyffert, David W. Largent, Guy L. McClung, III 2002-09-24
6450345 Glue pattern screens and methods of production Thomas C. Adams, Kenneth W. Seyffert, David W. Largent, David Schulte, Vincent D. Leone +2 more 2002-09-17
6412644 Vibratory separator Mark Crabbe, David Schulte 2002-07-02
6371301 Screen basket for shale shakers David Schulte 2002-04-16
6371302 Vibratory separator screens Thomas C. Adams, Kenneth W. Seyffert, David W. Largent, David Schulte, Jeffrey E. Walker +3 more 2002-04-16