DJ

Donald W. Johnson

NA National-Oilwell: 3 patents #3 of 58Top 6%
GI Gas Research Institute: 2 patents #168 of 808Top 25%
📍 San Antonio, TX: #991 of 5,017 inventorsTop 20%
🗺 Texas: #28,318 of 125,132 inventorsTop 25%
Overall (All Time): #1,022,481 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
8006751 Automated system for positioning and supporting the work platform of a mobile workover and well-servicing rig Jeff Lambert, James Garrett, Kenneth L. Cambern, Joel Ferland, Jay D. Furnish +3 more 2011-08-30
7546869 Automated system for positioning and supporting the work platform of a mobile workover and well-servicing rig Jeff Lambert, James Garrett, Kenneth L. Cambern, Joel Ferland, Jay D. Furnish +3 more 2009-06-16
7293607 Automated system for positioning and supporting the work platform of a mobile workover and well-servicing rig Jeff Lambert, James Garrett, Kenneth L. Cambern, Joel Ferland, Jay D. Furnish +3 more 2007-11-13
5954095 Apparatus and method for sealing a damaged pipe Stephen Cecil Grigory, Jesse Abergo Villarreal, Jeffrey Gene Wright 1999-09-21
5920976 Apparatus and method for remotely sealing a damaged pipe Stephen Cecil Grigory, Jesse Abergo Villarreal, Jeffrey Gene Wright 1999-07-13