Ljubisa M. Petrovic

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Sand control devices and method of installation thereof
- Patent number 4,700,776
- Issue date Oct 20, 1987
- Well Improvement Specialists, Inc.
- Ljubisa M. Petrovic
- E21 - EARTH DRILLING MINING
Information Patent Grant
Sand control devices and method of installation thereof
- Patent number 4,693,318
- Issue date Sep 15, 1987
- Well Improvement Specialists, Inc.
- Ljubisa M. Petrovic
- E21 - EARTH DRILLING MINING
Information Patent Grant
Fluid treatment apparatus and method
- Patent number 4,611,615
- Issue date Sep 16, 1986
- Ljubisa M. Petrovic
- B08 - CLEANING