IP Library › Granted Patent US 4,245,710
Granted Patent Utility
US 4,245,710 · App. 05/921,700

Centrifugal water-air separation in earth drilling bits

Inventors: George E. Dolezal, Richard T. Upton
Patented Case View Patent ↗
Granted: Jan 20, 1981 Filed: Jul 3, 1978
Inventors
George E. Dolezal
Richard T. Upton
Assignee (at issue)
Hughes Tool Company LLC

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Quick Facts
Patent No.
US 4,245,710
App. No.
05/921,700
Filed
1978-07-03
Granted
1981-01-20
Kind
A