Sugar Land, Texas
United States
8
2021-01-07
The entities that hold a legal rights for patent applications filed by inventor Copold Derek:
Derek Copold from Sugar Land, US has applied for patents for these inventions. The list has both pending applications and granted patents:
DOWNHOLE ROLLER
#2 | 2019-08-22Modular electro-mechanical assembly for downhole device
#3 | 2017-06-22Placement of stabilizers, standoffs, and rollers on a downhole tool string
#4 | 2017-04-27Shaped Standoff
#5 | 2017-03-09Downhole roller
#6 | 2013-09-26Downhole Tool Roller Device With Cylindrical Bearing Mechanism
#7 | 2012-07-05Downhole tool with roller screw assembly
#8 | 2011-06-02Grip enhanced tractoring
450575 ⎘