Dave D. Nagel

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Well drilling tool with diamond thrust bearings
- Patent number 4,620,601
- Issue date Nov 4, 1986
- Maurer Engineering Inc.
- Dave D. Nagel
- E21 - EARTH DRILLING MINING
Information Patent Grant
Insulated drill collar gap sub assembly for a toroidal coupled tele...
- Patent number 4,496,174
- Issue date Jan 29, 1985
- Tele-Drill, Inc.
- William J. McDonald
- E21 - EARTH DRILLING MINING
Information Patent Grant
Powered ratchet wrench
- Patent number 4,480,510
- Issue date Nov 6, 1984
- Gratec, Inc.
- Thomas Aparicio
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Manufacture of diamond bearings
- Patent number 4,468,138
- Issue date Aug 28, 1984
- Maurer Engineering Inc.
- Dave D. Nagel
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Well drilling tool with diamond radial/thrust bearings
- Patent number 4,410,054
- Issue date Oct 18, 1983
- Maurer Engineering Inc.
- Dave D. Nagel
- E21 - EARTH DRILLING MINING
Information Patent Grant
Downhole drilling motor with pressure balanced bearing seals
- Patent number 4,324,299
- Issue date Apr 13, 1982
- Maurer Engineering, Inc.
- Dave D. Nagel
- E21 - EARTH DRILLING MINING