Spring, Texas
United States
4
2019-11-21
The entities that hold a legal rights for patent applications filed by inventor BLACKMAN Mark P.:
Mark P. BLACKMAN from Spring, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Hybrid drill bit and design method
#2 | 2015-06-04Hybrid drill bit having increased service life
#3 | 2014-07-24Hybrid drill bit and design method
#4 | 2009-05-21Hybrid drill bit and design method
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