Empire Oil Tool Company

Follow

Organization

Denver, CO, US

Organizations

Please log in for detailed analytics

Patents Grantslast 30 patents

Information Patent Grant
Gear system
- Patent number 4,108,023
- Issue date Aug 22, 1978
- Empire Oil Tool Company
- Marion A. Garrison
- E21 - EARTH DRILLING MINING
Information Patent Grant
Gear system for an oil well drive
- Patent number 4,090,574
- Issue date May 23, 1978
- Empire Oil Tool Company
- Marion A. Garrison
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drive having a plurality of thrust bearings
- Patent number 4,086,788
- Issue date May 2, 1978
- Empire Oil Tool Company
- Marion A. Garrison
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus for connecting motors in tandem
- Patent number 3,986,370
- Issue date Oct 19, 1976
- Empire Oil Tool Company
- Marion A. Garrison
- E21 - EARTH DRILLING MINING
Information Patent Grant
Fluid driven motor having improved blade construction
- Patent number 3,976,408
- Issue date Aug 24, 1976
- Empire Oil Tool Company
- Marion A. Garrison
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Inlet and outlet ports and sealing means for a fluid driven motor
- Patent number 3,966,369
- Issue date Jun 29, 1976
- Empire Oil Tool Company
- Marion A. Garrison
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Trademarklast 30 trademarks