George Edward Dolezal

Person

Laurel, MS, US

People

Patents Grantslast 30 patents

Information Patent Grant
Long barrel inserts for earth-boring bit
- Patent number 6,443,246
- Issue date Sep 3, 2002
- Baker Hughes Incorporated
- Rudolf Carl Otto Pessier
- E21 - EARTH DRILLING MINING
Information Patent Grant
Earth-boring bit with improved bearing seal
- Patent number 5,655,611
- Issue date Aug 12, 1997
- Baker Hughes Inc.
- George E. Dolezal
- E21 - EARTH DRILLING MINING
Information Patent Grant
Earth-boring bit with improved bearing seal assembly
- Patent number 5,524,718
- Issue date Jun 11, 1996
- Baker Hughes Incorporated
- Philip B. Kirk
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mechanical lock to prevent seal ring rotation
- Patent number 5,295,549
- Issue date Mar 22, 1994
- Baker Hughes Incorporated
- George E. Dolezal
- E21 - EARTH DRILLING MINING
Information Patent Grant
Solid head bit with tungsten carbide central core
- Patent number 4,574,895
- Issue date Mar 11, 1986
- Hughes Tool Company - USA
- George E. Dolezal
- E21 - EARTH DRILLING MINING
Information Patent Grant
Air groove scraper
- Patent number 4,515,228
- Issue date May 7, 1985
- Hughes Tool Company - USA
- George E. Dolezal
- E21 - EARTH DRILLING MINING
Information Patent Grant
Earth boring drill bit with snap ring cutter retention
- Patent number 4,491,428
- Issue date Jan 1, 1985
- Hughes Tool Company
- Bruce H. Burr
- E21 - EARTH DRILLING MINING
Information Patent Grant
Stressed relieved bit leg for an earth boring bit
- Patent number 4,431,066
- Issue date Feb 14, 1984
- Hughes Tool Company
- Robert A. Cunningham
- E21 - EARTH DRILLING MINING
Information Patent Grant
Centrifugal water-air separation in earth drilling bits
- Patent number 4,245,710
- Issue date Jan 20, 1981
- Hughes Tool Company
- George E. Dolezal
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drill bit with seal ring compensator
- Patent number 4,014,595
- Issue date Mar 29, 1977
- Hughes Tool Company
- George Edward Dolezal
- E21 - EARTH DRILLING MINING

George Edward Dolezal

Person

Patents Grantslast 30 patents

Long barrel inserts for earth-boring bit

Earth-boring bit with improved bearing seal

Earth-boring bit with improved bearing seal assembly

Mechanical lock to prevent seal ring rotation

Solid head bit with tungsten carbide central core

Air groove scraper

Earth boring drill bit with snap ring cutter retention

Stressed relieved bit leg for an earth boring bit

Centrifugal water-air separation in earth drilling bits

Drill bit with seal ring compensator