RB

Roy J. Blanchard

GP Grant Prideco: 1 patents #22 of 58Top 40%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #1,224,443 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
8365775 Concentric, insulated tubular conduits and method for assembly Layton R. Bull, Douglas J. Trosclair, Terron A. Adams 2013-02-05
6520732 Concentric, insulated tubular conduits and method of assembly Layton R. Bull, Douglas J. Trosclair, Terron A. Adams 2003-02-18
6325278 Concentric, insulated tubular conduits and method of assembly Layton R. Bull, Douglas J. Trosclair, Terron A. Adams 2001-12-04
4655485 Seals for use in oil and gas well production tubing Norman M. Albrecht 1987-04-07