John P. Hare

Follow

Person

Pearland, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Subsurface tubing safety valve
- Patent number 5,137,090
- Issue date Aug 11, 1992
- Ava International Corporation
- John P. Hare
- E21 - EARTH DRILLING MINING
Information Patent Grant
Latching devices
- Patent number 4,726,421
- Issue date Feb 23, 1988
- Ava International Corporation
- Neil H. Akkerman
- E21 - EARTH DRILLING MINING
Information Patent Grant
Kickover tool
- Patent number 4,640,350
- Issue date Feb 3, 1987
- Ava International Corporation
- Neil H. Akkerman
- E21 - EARTH DRILLING MINING