Spring, Texas
United States
6
2017-09-07
The entities that hold a legal rights for patent applications filed by inventor Gregory Marvin A.:
Marvin A. Gregory from Spring, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Propulsion generator and method
#2 | 2016-01-21Propulsion generator and method
#3 | 2014-06-05Drill bit housing vibrator and method
#4 | 2014-06-05Vibrational tool with tool axis rotational mass and method
#5 | 2014-06-05Vibrational tool with rotating engagement surfaces and method
#6 | 2013-06-27Propulsion generator and method
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