Longview, Texas
United States
3
2018-07-05
The entities that hold a legal rights for patent applications filed by inventor Parnell Earl:
Earl Parnell from Longview, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Method of preparing and using drag-reducing dispersion polymer compositions
#2 | 2014-10-30DRAG-REDUCING COPOLYMER COMPOSITIONS
#3 | 2012-02-09Drag-reducing copolymer compositions
954162 ⎘