CR

Charles E. Robinson

UN Unknown: 2 patents #12,644 of 83,584Top 20%
DR Dril-Quip: 1 patents #46 of 80Top 60%
Overall (All Time): #665,454 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6202745 Wellhead apparatus Larry E. Reimert 2001-03-20
5787317 Shoulder carrier for camera 1998-07-28
4365124 Pressure sensitive machine safety switch 1982-12-21
4355605 Motor brake control method Melvin Nieberger 1982-10-26
4305353 Motor brake control system for controlling motor runaway Melvin Nieberger 1981-12-15
4290240 Automatic equalizer for abrasive belt 1981-09-22
4258506 Apparatus for scale and slag removal 1981-03-31
4223649 Motor brake control system Melvin Nieberger 1980-09-23