John David Juda

Follow

Person

Cypress, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Dual-direction ram-type blowout preventer seal
- Patent number 8,740,174
- Issue date Jun 3, 2014
- Hydril USA Manufacturing LLC
- John David Juda
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
DUAL-DIRECTION RAM-TYPE BLOWOUT PREVENTER SEAL
- Publication number 20080135791
- Publication date Jun 12, 2008
- John David Juda
- E21 - EARTH DRILLING MINING