Spring, Texas
United States
3
2016-12-01
The entities that hold a legal rights for patent applications filed by inventor Zhou Yong:
Yong Zhou from Spring, US has applied for patents for these inventions. The list has both pending applications and granted patents:
HYBRID DRILL BIT
#2 | 2013-06-06Drill bit having geometrically sharp inserts
#3 | 2012-03-22HARDFACING COMPOSITIONS, METHODS OF APPLYING THE HARDFACING COMPOSITIONS, AND TOOLS USING SUCH HARDFACING COMPOSITIONS
269429 ⎘