DL

Douglas J. Lehr

BH Baker Hughes Holdings: 13 patents #224 of 3,522Top 7%
BS Bj Services: 11 patents #9 of 250Top 4%
BC Baker Hughes, A Ge Company: 4 patents #221 of 1,459Top 20%
📍 Diemelstraße, TX: #38 of 1,115 inventorsTop 4%
🗺 Texas: #4,073 of 125,132 inventorsTop 4%
Overall (All Time): #131,131 of 4,157,543Top 4%
29
Patents All Time

Issued Patents All Time

Showing 26–29 of 29 patents

Patent #TitleCo-InventorsDate
5931229 Through tubing gravel pack system and method of gravel packing James T. Matte 1999-08-03
5579283 Method and apparatus for communicating coded messages in a wellbore Steve C. Owens, Brett W. Bouldin, David Rothers, Michael W. Holcombe 1996-11-26
4953622 Subterranean well casing float tool Merle L. Bell, Richard P. Rubbo, Richard L. Forehand 1990-09-04
4872510 Subterranean well casing float tool Merle L. Bell, Richard P. Rubbo, Richard L. Forehand 1989-10-10